Which statement is true of the following reaction?
H₂ + O₂H+ + 0²-
O It is balanced for oxidation state and for number of atoms.
O It is not balanced for oxidation state or for number of atoms.
O It is not balanced for oxidation state but is balanced for number of atoms.
OIt is balanced for oxidation state but is not balanced for number of atoms.

Answers

Answer 1

Answer: the answer is not c

Explanation: I don't know the correct answer, but I took the test and I know it is not c

Answer 2

Answer:

b is the answer

Explanation:

bc i said so


Related Questions

When a water heater thermostat is set at 140 ° f or higher, a ______ should be installed to cool the water.

Answers

Tempering Valve should be installed to cool the water.

A tempering valve is also called an anti-scald valve.

The thermostat controls the temperature inside the tank between 120F to 140F.

A thermostat is just a switch that is actuated by temperature. The thermostat will activates one of the elements in response to a "request for heat" when it detects a water temperature below its predetermined point.

At 140 degrees F temperature water can cause a burn to the skin in five seconds.

The Tempering valve is the mixing chamber, where cold water is mixed with hot water.  

It functions as a mixing device, mixing hot and cold water to generate the proper water temperature that is emitted from a certain outlet.

For a detailed study about the thermostat refer given link https://brainly.com/question/8312329.

#SPJ1.

Calculate the concentration of a solution if 15 g of salt is added to 170 g of water.​

Answers

Considering the definition of percentage by mass, the concentration of a solution if 15 g of salt is added to 170 g of water is 8.108 %.

Percentage by mass

The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

[tex]percentage by mass=\frac{mass of solute}{mass of solution}x100[/tex]

Concentration of the solution

In this case, you know:

mass of solute= 15 gmass of water= 170 gmass of solution= mass of solute + mass of water= 15 + 170 g= 185 g

Replacing in the definition of percentage by mass:

[tex]percentage by mass=\frac{15 grams}{185 grams}x100[/tex]

Solving:

percent by mass= 8.108 %

Finally, the concentration of a solution if 15 g of salt is added to 170 g of water is 8.108 %.

Learn more about percentage by mass:

brainly.com/question/19168984

brainly.com/question/18646836

#SPJ1

Which halogen or halogen-containing compound is typically used as a form of topical antisepsis?

Answers

The halogen or halogen-containing compound is typically used as a form of topical antisepsis will be "iodophor".

Iodine will be employed as an antiseptic in the manner of a tincture of iodine, essentially an alcoholic solution.

Iodophor would be an iodine-containing solution that also contains a solubilizing agent, like povidone or a surfactant. Iodophor would be a common sanitizer in the dairy but also brewing sectors. Generally, a high molecular weight carrier, commonly a polymer, has been polymerized with iodine.

Therefore, the halogen or halogen-containing compound is typically used as a form of topical antisepsis will be "iodophor".

To know more about antisepsis

https://brainly.com/question/15186144

#SPJ4

The reaction between calcium carbonate (CaCO3) and HCl produces calcium chloride (CaCl2), carbon dioxide (CO2), and water (H2O).What happens when the concentration of hydrogen chloride (HCl) molecules is doubled in this reaction?

CaCO3 + 2HCl → CaCl2 + CO2 + H2O

When the hydrogen chloride concentration doubles, the number of collisions between the reactants
, which causes the rate of the forward reaction to
.

Answers

When the hydrogen chloride concentration doubles, the number of collisions between the reactants becomes increased, which causes the rate of the forward reaction to be faster.

What is the rate of a reaction?

The rate of a reaction is how fast a chemical reaction occurs i.e. the conversion of reactants to products.

The rate of a chemical reaction can be influenced by certain factors including the concentration of reactants.

The more the concentration of a reactant, the more the collision between the reactants and hence, the faster the reaction will proceed.

Therefore, when the hydrogen chloride concentration doubles, the number of collisions between the reactants becomes increased, which causes the rate of the forward reaction to be faster

Learn more about rate of reaction at: https://brainly.com/question/8592296

#SPJ1

Answer:1. increases 2. increases

Explanation:

Got it right on plato!

a sodium hydroxide solution is 19 M. What will the strength of the solution formed if 25 ml of this NaOH solutio nis diluted to 5.0 Liters

Answers

the strength of the solution formed is 3.8.

What is the strength of the solution?

The amount of solute dissolved in grammes per litre of the solution is used to determine the solution's strength. It stands for the solution's potency or concentration. It uses grammes per litre of expression.

Concentration of NaOH = 19 M

Initial volume of NaOH = 25 mL= 0.025 L

Moles of NaOH = 19*0.025

                        = 0.475 moles

Final volume of NaOH solution = 5 L

Final concentration = 0.475/5

                              = 0.095 M

so, the strength is 19/5

                            = 3.8

to know more about strength of the solution go to - https://brainly.com/question/15848974

#SPJ4

Which of the following is an oxidation-reduction reaction?
SO2(g) + H2O(l) Right arrow. H2SO3(aq)
CaCO3(s) Right arrow. CaO(s) + CO2(g)
Ca(OH)2(s) + H2CO3(l) Right arrow. CaCO3(aq) + 2H2O(l)
C6H12O6(s) + 6O2(g) Right arrow. 6CO2(g) + 6H2O(l)

Answers

B. The chemical reaction that represents oxidation - reduction reaction is CaCO3(s) → CaO(s) + CO2(g).

Oxidation reduction reaction

In oxidation reduction reaction, the oxidizing agent is reduced while reducing agent is oxidized.

In the chemical equation below;

CaCO3(s) → CaO(s) + CO2(g)

Calcium (ca) is oxidized calcium (II) ion while the carbon (IV) oxide is reduced carbon (IV) oxide.

Thus, the chemical reaction that represents oxidation - reduction reaction is CaCO3(s) → CaO(s) + CO2(g).

Learn more about oxidation reduction reaction here: https://brainly.com/question/4222605

#SPJ1

Answer: The answer is B

Explanation: on edge

What is the order in which electrons start filling the orbitals?
a. 1s 2s 2p 3s 3p 4s 3d 4p
b. 1s 2s 2p 3s 3p 3d 4s 4p
c. 1s 2s 2p 3s 4s 3p 3d 4p
d. 1s 2s 2p 3s 4s 4p 3p 3d
e. 1s 2s 2p 3s 4s 3p 4p 3d

Answers

a. 1s 2s 2p 3s 3p 4s 3d 4p is the correct option.

This gives the following order to fill the orbit: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p, (8s, 5g, 6f, 7d, 8p, and 9s)

Aufbau's principle states that electrons fill low-energy atomic orbitals before they fill high-energy atomic orbitals. .. By following this rule, you can predict the electron configuration of an atom or ion.

There may be two electrons at the maximum of one orbit. Since the s subplane has only one orbit, it can hold up to two electrons. The p subplane has three orbitals, so it can hold up to six electrons. The d-subplane has five orbitals, so it can hold up to 10 electrons.

Learn more about electrons here:https://brainly.com/question/11316046

#SPJ4

What substitute for fossil fuel depletion has been heralded as the solution to the nation’s energy problems??

Answers

The renewable energies are the substitute for fossil fuel depletion has been heralded as the solution to the nation’s energy problems.

The benefits of renewable energies to the environment and economic are as follows.

The renewable energies produces less global warming.It also reliable and resilience.The  renewable energies helps to improve public health.Through renewable energies ,jobs and other economic gets benefits.The prices of  renewable energies is stable.The  renewable energies is inexhaustible energy.

learn about renewable energies

https://brainly.com/question/17373437

#SPJ4

Which of the following is the best definition of a chemical change?

A. All of these
B. The ability of something to undergo a change or reaction.
C. A change that alters the identity, or chemical composition, of a substance at the atomic level.
D. Something that can be observed or measured without changing the identity of the substance.

Answers

Chemical changes are changes that alter the identity or the chemical composition of substances at the atomic level.

What are chemical changes?

When a substance changes chemically, the identity of the substance changes.

In other words, chemical changes are changes that occur to substances such that the entire chemical properties of the substances change.

These changes happen at the atomic levels of substances. Sometimes, the changes can also be physical as well.

More on chemical changes can be found here: https://brainly.com/question/23693316

#SPJ1

How many carbon monoxide molecules are in 0.75 moles of carbon monoxide?

Answers

Answer:

four 0.5 times 10 to the 23rd Adams of Neptune

Explanation:

Answer:

0.75 ( 6.02 × 10²³) = 4.515 x 10²³

Explanation:

0.75 ( 6.02 × 10²³) = 4.515 x 10²³

Which of the following statements about the normal operation of nuclear fission reactors is accurate?
Select one:
a. They release large amounts of chemical pollutants into the air.
b. A small amount of fuel produces a large amount of energy.
c. The nuclear waste is quickly and safely disposed of at the reactor site.
d. The hot water surrounding the reactor core can be used to provide hot water for communities in the area.

Answers

Answer:

Explanation:

b

A first-order reaction is 81omplete in 264s. A. What is the half-life for this reaction? b. How long will it take for the reaction to reach 95ompletion?

Answers

A first-order reaction is 81omplete in 264s.The half-life for this reaction (i) t 1/2 = =3.465×10 −3 s.to reach 95% Completion = 285 s.

To measure reaction rates, chemists initiate the reaction, measure the concentration of the reactant or product at different times as the reaction progresses,

For a 0-order response, the mathematical expression that may be employed to determine the half of life is: t1/2 = [R]0/2k. For a first-order reaction, the half of-existence is given by: t1/2 = zero.693/ok. For a 2d-order response, the method for the half-life of the response is: 1/okay[R]0

The 1/2-life of a response (t1/2), is the quantity of time needed for a reactant concentration to lower via half of compared to its initial awareness. Its software is used in chemistry and medicine to are expecting the awareness of a substance over time

Half of the lifestyles is the time required for exactly 1/2 of the entities to decay   50%.

Learn more about first-order reaction here:- https://brainly.com/question/518682

#SPJ4

HELP PLS PLS PLS ILL MARK U BRAINLIEST

Answers

Answer:

2 FeCl3 → 2 Fe + 3 Cl2

Explanation:

2 Fe and 6 Cl on the reactants side, and 2 Fe and 6 Cl on the products side.

Oxygen gas generated in the thermal decomposition of potassium chlorate is collected over water. The volume of gas collected is 0.128 L, at a temperature of 297K and a pressure of 762 mm Hg. The vapour pressure of H2O at 297K is 22.4 torr. What is the mass of oxygen collected?

Answers

The mass of oxygen collected from the thermal decomposition of potassium chlorate at a temperature of 297 K and 762 mmHg is 0.16 g

How to determine the mole of oxygen produced

We'll begin by obtaining the number of mole of oxygen gas produced from the reaction. This can be obtained by using the ideal gas equation as illustrated below:

Volume (V) = 0.128 L Temperature (T) = 297 KPressure (P) = 762 – 22.4 = 739.6 mmHgGas constant (R) = 62.363 mmHg.L/Kmol Number of mole (n) =?

PV = nRT

739.6 × 0.128 = n × 62.363 × 297

Divide both sides by 62.363 × 297

n = (739.6 × 0.128) / (62.363 × 297)

n = 0.0051 mole

Thus, the number of mole of oxygen gas produced is 0.0051 mole

How to determine the mass of oxygen collected

Haven obtain the number of mole of oxygen gas produced, we can determine the mass of the oxygen produced as follow:'

Mole = 0.0051 moleMolar mass of oxygen gas = 32 g/moleMass of oxygen =?

Mole = mass / molar mass

0.0051 = mass of oxygen / 32

Cross multiply

Mass of oxygen = 0.0051 × 32

Mass of oxygen = 0.16 g

Thus, we can conclude that the mass of oxygen gas collected is 0.16 g

Learn more about ideal gas equation:

https://brainly.com/question/4147359

#SPJ1

How many molecules of zinc oxide are there in a 2 kg (2,000 g) sample?

Answers

Answer:

1.48 x 10²⁵ molecules ZnO

Explanation:

To find the amount of molecules, you need to (1) convert grams to moles (via molar mass) and then (2) convert moles to molecules (via Avogadro's Number). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units.

Molar Mass (ZnO): 65.380 g/mol + 15.998 g/mol

Molar Mass (ZnO): 81.378 g/mol

Avogadro's Number:

6.022 x 10²³ molecules = 1 mole

2,000 g ZnO           1 mole              6.022 x 10²³ molecules
---------------------  x  -----------------  x  ---------------------------------------  =  
                                81.378 g                          1 mole

=  1.48 x 10²⁵ molecules ZnO

Sulfur has an oxidation number of +6 in which two formulas?

A. SO₂ and SO4²-

B. H₂SO4 and SO₂

C. SO3 and SO4²-

D. HSO4- and S₂03²-

Answers

Answer:

[tex] \sf \blue{B. H_{2}SO4 \: and \: SO_{2}}[/tex]

Explanation:

As we know in oxidation, oxygen is added and hydrogen is reduced. And in option B, we can observe that is oxygen added +6. So, we conclude that option B is valid.

Hope it help you

Meteorologists use weather balloons to carry weather instruments high into the atmosphere. when it is first released at earth’s surface, a weather balloon typically appears underinflated. what happens to the balloon’s volume and pressure as it rises into the atmosphere? check all that apply. the pressure in the balloon decreases. the pressure in the balloon increases. the volume of the balloon increases. the volume of the balloon decreases.

Answers

As the balloon rises, its volume grows because the external pressure is lower at higher altitudes, which causes the air molecules to expand more in order to reach mechanical equilibrium, where the external and internal pressures are equal. The balloon is underinflated because, in contrast to when it is on the ground, the pressure outside makes it difficult for gas molecules to push against the balloon's walls.As the balloon’s altitude increases, its volume also increases.At high altitude, the atmospheric pressure on the outside of the balloon is less that it is at Earth’s surface.As the pressure on the outside of the balloon decreases, the balloon’s volume increases because the pressure inside the balloon pushes the balloon outward.As the balloon’s volume increases, the pressure inside the balloon decreases until it is equal to the pressure on the outside of the balloon.In conclusion, condition verifications:

the pressure in the balloon decreases- True

the pressure in the balloon increases- False

the volume of the balloon increases- True

the volume of the balloon decreases- False

To learn more about weather balloon visit:

https://brainly.com/question/13079902

#SPJ4

Phosphate buffer solution is purchased as a(n) 10x stock solution. The solution is more concentrated than the working stock. If tasked with making 941 mL of a 1x solution of PBS, how many mL of the stock solution would be needed

Answers

94.1 mL of 10x PBS should be needed

Given:

Phosphate buffer solution = 10x

Volume of 1x solution of PBS = 941 mL

To Find:

Volume of stock solution

Solution:

A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. Its pH changes very little when a small amount of strong acid or base is added to it.

using the formula

M1 x V1 = M2 x V2

(10x)* V1 = 1x* 941

V1 = 94.1 ml

So, 94.1 mL of 10x PBS should be needed

Learn more about Buffer solution here:

https://brainly.com/question/22390063

#SPJ4

Noble gases have __ values of ionization energy due to their complete outermost shells

Answers

Answer:

high

Explanation:

The energy needed to ionize a neutral atom is known as ionization energy. An atom must have one or more electrons removed from its valence shell in order to get ionized and become a cation. Alternately, you must produce an anion by adding one or more electrons to the valence shell. The energy needed for ionization will be lower the fewer electrons are supplied or withdrawn. As a result, atoms having an incomplete valence shell have a tendency to ionize more quickly and with less energy. However, entire valence shell atoms will require a large amount of ionization energy. As a result, noble gases need significant energy to ionize since they contain a full valence shell, are extremely stable, and do not tend to ionize easily.

what discovery was found by Nels Bohr model of atom ?​

Answers

Answer:

What was Niels Bohr's most important discovery? Niels Bohr proposed a model of the atom in which the electron was able to occupy only certain orbits around the nucleus. This atomic model was the first to use quantum theory, in that the electrons were limited to specific orbits around the nucleus.

Explanation:

Subjects Of Study: atomic model

If a 4L solution is 80% concentrated lime juice and 20% water, how much 30% concentrated lime juice must be added so that the concentration of the resulting solution is 50% concentrated lime juice

Answers

The volume of 30% concentrated lime juice that must be added to a 4L solution of 80% concentrated lime juice and 20% water is 6 L.

What are mixtures?

Mixtures are substances which are formed when two or more substances are physically combined together.

Mixtures are heterogenous in nature and the constituents can be easily separated.

The volume of 30% concentrated lime juice that must be added to a 4L solution of 80% concentrated lime juice and 20% water, so that the concentration of the resulting solution is 50% concentrated lime juice is determined as follows:

Let the volume of 30% lime juice required be x;

total volume of lime juice = 0.3x

For 80% lime juice, volume of lime juice = 0.8 * 4 = 3.2 L

New volume of lime juice = 4 + x

New amount of lime juice added = 3.2 + 0.3x

Also, new amount of lime juice = 0.5 * ( 4 + x)

3.2 + 0.3x = 0.5 * ( 4 + x)

0.2x = 1.2

x = 6 L

In conclusion, the volume to be added is obtained from the percent concentration.

Learn more about percent concentration at: https://brainly.com/question/19379932

#SPJ1

A balloon filled with air has a volume of 4.24 liters at 23.00°c. if the balloon is cooled at constant pressure to 5.00°c, what is its new volume? the balloon’s volume at 5°c is liters.

Answers

The new volume if the balloon is cooled at constant pressure is  3.98 L.

Charles's law, states that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature if the pressure remains constant.

The new  volume is calculated using the Charles law formula

                                 V₁ / T₁  = V₂ / T₂

where,

V₁ = The initial volume of air = 4.24 l

T₁ = 23.00 °C into kelvin = 23  +273 =296 K

T₂ = 5.00 °C into kelvin = 5.00 + 273 = 278 K

V₂ = ?

By making  V₂ subject the subject of the formula  by multiplying both sides by T₂

V₂ = ( V₁  × T₂ ) / T₁

V₂ =  (4.24 L  ×  278 K)  / 296 k  

   = 3.98 L

Therefore, the new volume, if the balloon is cooled at constant pressure, is  3.98 L.

An air-filled balloon will contract when chilled and expand when heated. This occurs because the gas that makes up the air within the balloon expands when it is warm and contracts when it is cool.

Learn more about Charles law here:

https://brainly.com/question/14842720

#SPJ4

Answer: at 5 its ... 3.98

Explanation:

How many moles of H2O are in 64.0 g of H2O

Answers

Answer:

Explanation:

stoichiometry of C₂H₂ to H₂O is 2:2.

Number of moles of C₂H₂ = molar mass of C₂H₂  

Since the molar mass of C₂H₂  is 26 g/mol.

Number of C₂H₂  moles reacted = 64.0 g / 26 g/mol = 2.46 mol.

according to a molar ratio of 2:2.

the number of H₂O moles formed = a number of C₂H₂  moles reacted.

Therefore the number of H₂O moles produced = 2.46 mol

Cesium sulfite is formed from the cs cation and the so2−3 anion. What is the correct formula for this compound?

Answers

Cesium Sulfite is formed from the Cs cation and the SO₃⁻² anion. The correct formula for this compound is Cs₂SO₃.

What is Cation ?

Cations are positively charged ions. It forms when an element lose one or more electrons.


What is Anion ?

Anions are negatively charged ions. It form when an element gains one or more electrons.

Symbol         Cs⁺¹         SO₃⁻²

Valency           +1              -2

Formula of the compound is Cs₂SO₃.

Thus from the above conclusion we can say that Cesium Sulfite is formed from the Cs cation and the SO₃⁻² anion. The correct formula for this compound is Cs₂SO₃.

Learn more about the Cation and Anions here: https://brainly.com/question/20005547
#SPJ1

What is the frequency of an
orange light with a wavelength of 483 nm?
[?] × 10²] Hz

Please explain how to solve as well I’m very confused.

Answers

Answer:

6.21 x 10¹⁴ Hz

Explanation:

The frequency can be found using the following equation:

λ = c / f

In this equation,

-----> λ = wavelength (m)

-----> c = speed of light (3.0 x 10⁸ m/s)

-----> f = frequency (Hz)

After converting the wavelength from nm to m, you can plug the given values into the equation and simplify to find the frequency.

 483 nm                 1 m
---------------  x  ---------------------  =  4.83 x 10⁻⁷ m
                          1 x 10⁹ nm

λ = c / f                                                         <----- Given equation

4.83 x 10⁻⁷ m = 3.0 x 10⁸ m/s / f                 <----- Insert values

(4.83 x 10⁻⁷ m) x f = 3.0 x 10⁸ m/s              <----- Multiply both sides by f

f = 6.21 x 10¹⁴ Hz                                       <----- Divide both sides by 4.83 x 10⁻⁷

Calculate the freezing point depression for 1 kilogram of sodium chloride (NaCl) in 5 kilograms of
water. The Ky of water is -1.86 °C/m.

Answers

[tex]\\ \rm\dashrightarrow \Delta T_f=ik_fm[/tex]

m is molality

Moles of NaCl

1000/2343.4mol

Molality

43.4/58.68

[tex]\\ \rm\dashrightarrow \Delta T_f=i(-1.86)(8.68)[/tex]

[tex]\\ \rm\dashrightarrow \Delta T_f=-16.14i[/tex]

i is vant Hoff factor

For NaCl vant Hoff factor is 2( Actually 1.9)

[tex]\\ \rm\dashrightarrow \Delta T_f=-16.14(2)=-32.28°C[/tex]

Moles of NaCl

[tex]\\ \tt{:}\dashrightarrow \dfrac{1000g}{23g/mol}[/tex]

[tex]\\ \tt{:}\dashrightarrow 43.4mol[/tex]

Find Molality

[tex]\boxed{\sf Molality=\dfrac{Moles\:of\:solute}{Volume \:of\: solution\:in\:kg}}[/tex]

Volume of solution=1kg+5kg=6kg

[tex]\\ \tt{:}\dashrightarrow m=\dfrac{43.4}{6}=7.2m[/tex]

Vant Hoff factor

[tex]\\ \tt{:}\dashrightarrow NaCl\longrightarrow Na^++Cl^-[/tex]

i=2

Freezing point depression

[tex]\\ \tt{:}\dashrightarrow \Delta T_f=iK_fm[/tex]

[tex]\\ \tt{:}\dashrightarrow \Delta T_f=2(-1.86)(7.2)[/tex]

[tex]\\ \tt{:}\dashrightarrow \Delta T_f=-26.7°C[/tex]

Describe the difference between radiopaque and radiolucent. Radiopaque refers to a _______________ or light appearance of a structure on a processed radiograph. Radiolucent refers to a _______________ appearance of a structure on a processed radiograph.

Answers

Radiopaque refers to a White or light appearance of a structure on a processed radiograph. Radiolucent refers to a Dark appearance of a structure on a processed radiograph.

What makes something radiodense as opposed to radiolucent?

Materials that prevent electromagnetic radiation from passing through are referred to as radiodense or radiopaque, whereas materials that permit radiation to pass more readily are referred to as radiolucent. In contrast to radiolucent volumes, which appear significantly darker on radiographs, radiopaque volumes of material seem white.

What exactly does radiodensity mean?

It is the relative inability of radio waves and X-rays to flow through a certain substance. Radiodensity (or radiopacity) is opacity to the radio wave and X-ray portion of the electromagnetic spectrum.

Learn more about radiopaque and radiolucent here:-

https://brainly.com/question/13110181

#SPJ4

Calculate and record the expected mass of benzoic acid required to react with 20.00 mL of a 0.100 M sodium hydroxide solution. Record the mass of benzoic acid using three significant digits to reference later.

Answers

The mass of benzoic acid is 0.244 g.

Here use the concept of molarity.

What is molarity?

The amount of a substance in a specific volume of solution is known as its molarity (M). The moles of a solute per liter of a solution is known as molarity.

                            Molarity = no. of moles/volume (in L)

Calculation:

Given,

Molarity, M = 0.100 M

Volume, V = 20.00 mL = 20.0 × 10⁻³

To calculate,

Mass of benzoic acid C₇H₆O₂ =?

We know that,

Molecular mass of benzoic acid, C₇H₆O₂  = 122

No. of moles = weight/ molecular mass

The formula is modified as,

Molarity = weight of cholesterol/ (molecular mass) (Volume)

Put the values in the formula,

0.100 = Mass of benzoic acid/ (122) (20 × 10⁻³)

Mass of benzoic acid = 0.100 (122)(20 × 10⁻³)

                                    = 244 × 10⁻³

                                    = 0.244 g

Hence, the mass of benzoic acid is 0.244 g.

Learn more about molarity here:

brainly.com/question/13386686

#SPJ4

What was the purpose of varying the concentrations of sodium alginate and CaCl2?

Answers

To determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

What is concentration?

The concentration of a substance simply means the amount of the substance in solution. Thus we are looking at the amounts of sodium alginate and CaCl2 in the system.

The concentrations of the sodium alginate and CaCl2 is varied in order to determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

Learn more about enzymes:https://brainly.com/question/14953274

#SPJ1

The name of Ra3N₂ is

Answers

Answer:

Radium Nitride

What is radium?

A radioactive element is radium. See what "radioactive" actually means.

Atoms make up the elements. Since most atoms are stable, they do not change over time. However, some of the heaviest atoms disintegrate and transform into different types. "Radioactivity" is the term for this breakdown or disintegration.

Each radioactive element releases rays that decay or disintegrate at a specific pace. There is no known way to speed up or slow this rate. Some changes happen quickly, some take longer, but no matter what, man cannot control the action.

In the case of radium, this decay would continue indefinitely until the radioactive material was ultimately converted to lead. For instance, in 1,590 years, half a gram of radium would transform into atoms with a lower atomic weight. Half of the remaining radium would transform after an additional 1,590 years, and so on until all of it turned into lead.

Attachment #1:

This is a revigator. It is a pot that was created specifically with radium, uranium, and other radioactive materials to contain water. When radioactivity was first discovered in 1912, people thought it was beneficial and "magical," similar to how homeopathic treatments are now. They would store water in it to allow it to absorb radiation, then they would drink the water. In the 1930s, several gadgets were subsequently recalled.

The enigmatic new radioactive elements captivated people's curiosity during the early 1900s. Although this starch didn't actually contain radium, it was given that name because of the rarity and beauty of radium. It was once thought of similarly to how titanium is now.

Madame Curie and her husband, Pierre Curie, made the discovery of radium. They were processing a ton of pitchblende, an ore that contains uranium. Although they were aware that the uranium was emitting invisible rays, they had the impression that there was another another, far more potent chemical present. They initially discovered polonium, another radioactive element, before successfully isolating a minute particle of radium.

The three types of rays that radium emits are alpha, beta, and gamma rays. Helium gas contains swiftly moving particles called alpha rays. In beta rays, the electrons move quickly. Gamma rays are similar to X-rays but typically more invasive. Every time one of these rays is emitted, its parent atom transforms into a different element. "Atomic transmutation" is the term for this transformation.

Hope this helps!

Cheers

>> ROR

Other Questions
$12,000 is invested in the bank for 4 years at 6 1/2 ompounded daily (bankers rule). what is n= ? at the end of the nineteenth century, chinese men in the united states outnumbered chinese women by: Sharing of food and other resources among members of foraging groups Is a survival strategy that reinforces social equality. T/F? identify some of the strengths and tensions that persist within today's black church give all values of theta in radians where theta is < 2pi and tangent theta = 1 determine the volumetric flow of water if y = 1.6 ft . bernice is 62. she is in a life stage known as _____ adulthood. calculate the sum of the series [infinity] an n = 1 whose partial sums are given. sn = 4 2(0.6)n if you add enzyme to a solution containing only the product(s) of a reaction, would you expect any substrate to form? a) it depends on the time interval and temperature of reaction. b) it depends on the concentration of products added. c) it depends on the energy difference between e p and the transition state. d) all of the above may determine if product forms. e) none of the above determines if product forms. in the solidification of a metal, what is the difference between an embryo and a nucleus? what is the critical radius of a solidifying particle? A toroidal solenoid has 540 turns, cross-sectional area 6.00 cm2 , and mean radius 5.00 cm .a.)Calcualte the coil's self-inductance.b.)If the current decreases uniformly from 5.00 A to 2.00 A in 3.00 ms, calculate the self-induced emf in the coil.c.)The current is directed from terminal a of the coil to terminal b. Is the direction of the induced emf froma to b or from b to a? Kirti knows the following information from a study on cold medicine that included 606060 participants:303030 participants in total received cold medicine. 262626 participants in total had a cold that lasted longer than 777 days. 141414 participants received cold medicine but had a cold that lasted longer than 777 days. Can you help Kirti organize the results into a two-way frequency table? The Ka for formic acid, HCOOH, is 1.77 x 10-4. HCOOH (aq) + H2O (l) COOH- (aq)+H3O (aq) What is the pH of a buffer made from 2.0 M HCOOH and 3.0 M COOH-? (6 pts) Select the correct answer. An online wave simulator created these four waves. Which wave has the lowest frequency? A. B. C. D. title = q5a4 for the phosphite ion, po33- the electron domain geometry is _______(i)________ and the molecular geometry is ______(ii)________? A motor you pick up in a parts bin, looks like this. There are 4 wires coming into the motor. What kind of motor is it? PMDC Unipolar stepper Bipolar stepper Brushless DC Synchronous AC Incorrect A function object is a value you can assign to a variable or pass as an argument. For example, do_twice is a function that takes a function object as an argument and calls it twice: def do_twice(f): F()F() Here's an example that uses do_twice to call a function named print_spam twice.def print_spam): print('spam') do_twice (print_spam) 1. Type this example into a script and test it. 2. Modify do_twice so that it takes two arguments, a function object and a value and calls the function twice, passing the value as an argument. 3. Copy the definition of print_twice from earlier in this chapter to your script 4. Use the modified version of do_twice to call print_twice twice, passing spam as an argument. 5. Define a new function called do_four that takes a function object and a value and calls the function four times, passing the value as a parameter. There should be only two statements in the body of this function, not four. Prove that the numerical value of the probability given by equation T4.8 is unchanged if we add a constant value E, to the energy of each energy state available to the small system. eE/T Pr(E) = 2 *ht = 3 con (T4.8) Se all states Purpose: This equation describes the probability that a small system in ther- mal contact with a reservoir at absolute temperature T will be in a quantum state that is, a microstate) with energy E, where is the energy of the ith small- system quantum state, Z is a constant of proportionality called the partition function, and kg is Boltzmann's constant. Limitations: The reservoir must be large enough that it can provide the small system with any energy it is likely to have without suffering a significant change in its temperature T. Notes: We call eE/T the Boltzmann factor. consider the following reaction: 2 pbs (s) 3 o2 (g) 2 pbo (s) 2 so2 (g) hrxn = -827.4 kj what mass of pbs has reacted if 765 kj of heat is produced? explain how environmental indicators are used to assess sustainability.