The chemical equation below represents a reversible reaction.

H2PO4- + H2O ↔ H3PO4 + OH-

Which pair represents an acid and its conjugate base?

Answers

Answer 1

Answer:b

Explanation:

bc

Answer 2

In the given chemical equation, H₃PO₄ is an acid while it's conjugate base is OH⁻.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

Learn more about chemical equation,here:

https://brainly.com/question/28294176

#SPJ3


Related Questions

Help me pretty please

Answers

Answer:

C

Explanation:

Answer:

I think ur answer would be C.)

Explanation:

hope this helps

if answered correctly i will give brainlest​

Answers

Answer: Earthquake location

Explanation:

Answer:

Volcano chains and arcs, and earthquake locations

each side of a square is 8 by 10 metre find the area of the square​

Answers

Answer and Explanation:

I believe the answer is 8

I believe it’s 8 if not please tell me at least

Will mark BRAINLIEST. Molarity
Please no Bs answers. Only going to be reported.

If water is added to 145 mL of a 0.55 M KOH solution until the volume is 250 mL, what will the molarity of the diluted solution be?

What is the molarity of the solution that results from diluting 35.0 ml of a 9.02M solution to a new volume of 45.0 ml?​

Answers

We can use the equation for dilutions that relates concentration and volume:

[tex]M_1V_1=M_2V_2[/tex]

where M is the molarity, V is the volume, and 1 and 2 refer to the initial and final states of the solution, respectively. Here, we are given the molarity of the initial solution and the volumes of the initial and final (diluted) solutions. To find the final concentration (i.e., the molarity of the diluted solution), we would be solving for M₂:

[tex]M_2=\frac{M_1V_1}{V_2} = \frac{(0.55 \text{ M})(145 \text{ mL})}{250 \text{ mL}} \\ M_2 = 0.319 \approx 0.32 \text{ M}.[/tex]

The molarity is given to two significant figures as both our M₁ and V₂ are given to two significant figures.

Note: Although our volumes are in mL instead of L, we do not need to convert them to L for the purposes of our calculation since we would be multiplying our V₁ and V₂ by a common factor that would cancel out in division. All that matters is the ratio between the two volumes, which is the same whether the volumes are in mL or in L.

---

We follow the exact same procedure in the second question as we did in the first problem: solve for M₂ given M₁ = 9.02 M, V₁ = 35.0 mL, and V₂ = 45.0 mL:

[tex]M_2=\frac{M_1V_1}{V_2} = \frac{(9.02 \text{ M})(35.0 \text{ mL})}{45.0 \text{ mL}} \\ M_2 = 7.02 \text{ M}.[/tex]

Na2SO4
How many oxygen stems are?

Answers

Answer:

Na2SO4 means: two moles sodium (45.98 g), one mole sulfur (32.06 g), and four moles oxygen (64.00 g) combine to form one mole of sodium sulfate (142.04 g).

Explanation:

Answer:

As we can see in the formulae, Na₂SO₄

We can see that 4 is the subscript of O and that means There are 4 atoms of oxygen.

Calculate the number of grams of sulfur in 4.52 mol of sulfur.

Answers

The answer is 1.27 grams. 4.52 mol = 1.27 g

Calculate the number of moles that are in 2.0 L of a 0.75 M solutions of NaCl

Answers

Answer:

1.5

Explanation:

0.75M=Moles/2L

How to convert celcius to Kelvin?​

Answers

Answer:

temperature

Explanation:

If a reaction is endothermic,
1 point
More energy is released when the bonds in the products are formed than is used to
break the bonds in the reactants
The temperature increases
The same amount of energy is used to break the bonds of the reactants as is released
when the bonds in the products are formed
О O
It takes more energy to break the bonds of the reactants than is released when the
bonds in the products are formed

Answers

Answer: It takes more energy to break the bonds of the reactants than is released when the  bonds in the products are formed

Explanation:

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat. Thus it takes more energy to break the bonds of the reactants than is released when the  bonds in the products are formed

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat. Thus More energy is released when the bonds in the products are formed than is used to  break the bonds in the reactants

need help to solve it

Answers

Answer:

Divide by the molar mass to get moles

Explanation:

is lime flavor ionic or covalent​

Answers

Answer:Calcium carbonate (CaCO3), essentially, is an ionic compound having the bivalent calcium and carbonate ions. But the carbonate anion is a polyatomic species. The carbon atom is bonded to all the three oxygen atoms by covalent bonds - two carbon-oxygen single bonds and one carbon-oxygen double bond.

Explanation:So it's ionic hope this helps u. Btw may i have brainlist plz.


Question 1
1. Na2O + H20 --->
NaOH
A. Single Replacement
B. Double Replacement
c. Decomposition
D. Synthesis
E. Combustion

Answers

Answer: D. Synthesis

Explanation:

Sodium Oxide + Water = Sodium Hydroxide

what happens to the boiling point of hydrocarbon compounds when the number of carbon atom increases

A. Decreases
B. Increases
C. Remains the same
D. None of these

I NEED YOUR ANSWER RN GUYSS PLEASEE​

Answers

The boiling points of alkanes increases with increasing number of carbons. This is because the intermolecular attractive forces, although individually weak, become cumulatively more significant as the number of atoms and electrons in the molecule increases.



So therefore your answer choice will increase. (B)

What does a TRAAP test stand for

Answers

Answer:

TIMELINESS, RELEVANCE, AUTHORITY, ACCURACY and PURPOSE.

Explanation:

hope it helps!

Answer: TRAAP stands for Timeliness, Relevance, Authority, Accuracy and Purpose.

Explanation:

Which of the following examples best describes an effect of urbanization?

A More land is available in large cities to grow crops.
B Wildlife diversity increases due to more open spaces within the city.
C Emissions from motor vehicles increase smog in the air that can block radiation.
D The greater concentration of people in large cities reduces overall waste production and accumulation on Earth.
please help

Answers

C) Emission from motor vehicles increase smog the air that can block radiation, which makes sense because urbanization means more people in one area=lots of pollution

Emissions from motor vehicles increase smog in the air which can block radiation. Hence, option C is correct.

What does it mean to live in an urban area?

An urban area is a region surrounding a city. Most inhabitants of urban areas have nonagricultural jobs. Urban areas are very developed, meaning there is a density of human structures such as houses, commercial buildings, roads, bridges, and railways. "Urban area" can refer to towns, cities, and suburbs.

Emission from motor vehicles increases smog in the air that can block radiation, which makes sense because urbanization means more people in one area=lots of pollution.

Hence, option C is correct.

Learn more about urbanization here:

brainly.com/question/12007420

#SPJ2

Which of the following best describes a solution?
a heterogenous compound
a homogenous compound
a homogenous mixture
O O a heterogenous mixture

Answers

Answer:

homogeneous mixture

The answer would be C) Homogeneous mixture

Call each of your flowers as water employee increase rate of growth

Answers

Okay ...................x

How many total atoms are in one molecule of Pb(C2H2O2)2?
A) 9
B) 14
C) 3
D) 15

Answers

, shows that its molecules contain one S atom and two O atoms; calculate its molar mass. molecules, which consist of 6.02 x 1023 S atoms and 2(6.02 x 1023) O atoms.
The answer is C,(3)

What 3 things will you do to dissolve a solid (salt) faster in a liquid (water)

Answers

Answer:

There are three ways to make solids dissolve faster: Break the solute into smaller pieces. Stir the mixture. * Heat the mixture.

Explanation:

Substances can dissolve in water three ways—by dissociation, dispersion, and ionization.

The total mass of the __________________ and __________________ in an atom is the atomic mass.
Fill in the blanks Plzz

Answers

Answer:

protons, neutrons

Explanation:

There are three subatomic particles in all atoms: protons, neutrons and electrons. Of these three, only protons and neutrons are considered to have enough mass to contribute to overall atomic mass of the element.

b. What useful functions do oxidation numbers
serve?
20.
b. How many molecules are in 1 mole of
molecules?
c. What is the name given to the number of
molecules in 1 mole?
21. a. What is the molar mass of an element?
b. Write the molar mass rounded to two
decimal places of carbon, neon, iron and
uranium.

Answers

Explanation:

b. What useful functions do oxidation numbers  serve?

It is used to show oxidation and reduction (loss and gain of electrons)

b. How many molecules are in 1 mole of  molecules?

1 mole = 6.022 * 10^23 molecules

c. What is the name given to the number of  molecules in 1 mole?

Avogadro's Number of molecules

21. a. What is the molar mass of an element?

This is the mass of an element divided by the number of moles.

Molar mass = Mass / Number of moles

b. Write the molar mass rounded to two  decimal places of carbon, neon, iron and  uranium.

amu = Atomic Mass Unit

Carbon = 12.01 amu

Neon = 20.18 amu

Iron = 55.85 amu

Uranium = 238.03 amu

Solid aluminum metal reacts with chlorine gas to produce aluminum chloride crystals. How many grams of
aluminum chloride will be produced if the reaction begins with 135.0 g Al and 75.0 g chlorine gas? Write the balanced equation. Determine the limiting reactant and determine how much excess reactant will be left over. show your work.

Answers

Sort of hard but it is 56.8

56.8g of aluminum chloride will be produced if the reaction begins with 135.0 g Al and 75.0 g chlorine gas.

What is mass?

A body's mass is an inherent quality. Prior to the discovery of a atom or particle physics, it was widely considered to be tied to the amount of matter inside a physical body. It was discovered that, despite having the very same quantity of matter in theory, different atoms and elementary particles have varied masses.

There are various conceptions of mass in contemporary physics that are theoretically different but physically equivalent. The resistance of the body to acceleration in the presence of a net force can be measured experimentally as mass. The gravitational pull an object has on other bodies is also influenced by its mass.

2 Al + 3 Cl[tex]_2[/tex] → 2 Al C l[tex]_3[/tex]

mole of Al =  135.0/ 26=5.19mol

mole of Cl[tex]_2[/tex] = 75.0/ 35 =2.14 mol

mass of aluminum chloride =  56.8g

Limiting reagent = Al

excess reactant =  Cl[tex]_2[/tex]

Therefore, 56.8g of aluminum chloride will be produced if the reaction begins with 135.0 g Al and 75.0 g chlorine gas.

To know more about mass, here:

https://brainly.com/question/28704035

#SPJ2

The mass of a single gold atom is 3.27X10^-22 grams. How many gold Adams with there be in 57.8 mg of gold.

Answers

Answer:

18 * 10^19 atoms

Explanation:

We must first convert 57.8 mg to grams.

If 1000 mg = 1g

  57.8 mg = 57.8/1000 = 57.8 * 10^-3 g

Now;

If 1 gold atom has a mass of 3.27X10^-22 grams

x gold atoms have a mass of 57.8 * 10^-3 g

x = 57.8 * 10^-3 g/3.27X10^-22 g

x = 18 * 10^19 atoms

What are the
invisible lines
revealed by the
Iron fillings
surrounding a
magnet called?

Answers

Answer:

At each end of a magnet is a pole. These lines of flux (called a vector field) can not be seen by the naked eye, but they can be seen visually by using iron fillings sprinkled onto a sheet of paper or by using a small compass to trace them out.

hope it's help

#carryONlearning
A magnetic field is the area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted.” ... The invisible area around a magnetic object that can pull another magnetic object toward it or push another magnetic object away from it is called a magnetic field.


which substance will evaporate first???????????????????

Answers

Answer:

I think it would be a liquid.

Explanation:

If the temperature hits a certain point, it will turn to ice. If the ice gets exposed to heat, it will melt and return back to it's natural form, a lqiuid. If the liquid is exposed to enough heat, it will evaporate. Not sure if this is right, but I tried my best!  

Which formula equation represents the burning of sulfur to produce sulfur dioxide?

Answers

Answer

The balanced reaction that describes the reaction between sulfur and oxygen to produce sulfur dioxide is expressed S(s) + O2 (g) = SO2 (g). In many manufacturing plants, sulfur dioxide is furhter reacted to oxygen to form sulfur trioxide then added with water to produce sulfuric acid.

Explanation: The balanced reaction that describes the reaction between sulfur and oxygen to produce sulfur dioxide is expressed S(s) + O2 (g) = SO2 (g).

Answer:

The balanced reaction that describes the reaction between sulfur and oxygen to produce sulfur dioxide is expressed S(s) + O2 (g) = SO2 (g). In many manufacturing plants, sulfur dioxide is further reacted to oxygen to form sulfur trioxide then added with water to produce sulfuric acid.

A horse weighs 240 kg. If its running at a speed of 18 m/s, what's the linear momentum of the horse

Answers

Answer: The answer is 4320

Explanation:

I got the answer correct

Is the reaction above a replacement reaction? Explain.

Answers

Replacement I don't see anything

True or false The difference between solids and liquids is that solids have definite shape and volume, while liquids have no define volume

Answers

Answer:

False

Explanation:

Answer:

true! :) hope it helps

If Steve throws a football 57 meters in 3 seconds, what is the average speed of the football?​

Answers

Answer:

19 m/s

Explanation:

57/3

Other Questions
Cigarettes consist of 200 known poisons. true or false pls answer this if you do I mark brainlest Enter the correct 4 digit code (no spaces) Give two examples of elevation. 1. If a long tail is a dominant characteristic, in which case is the characteristic of a long tail definitely expressed?A) when at least one allele contains instructions for a long tailB) when at least one parent has a long tailC) when both alleles contain instructions for a long tailD) when both parents have a long tail2. What is true of all body cells except sex cells?A) Each cell type carries chromosomes and genes that identify it as that specific type of cell. For example, skin cells have different chromosomes and genes than muscle cells.B) Each body cell contains the same number and kinds of chromosomes for that organism. The chromosomes contain the same number and kinds of genes for that individual.C) While each cell type in the body contains the same kinds of genes, they are organized on different chromosomes depending on the cell type.D) While each cell in the body contains the same number of chromosomes, each cell type has different genes along those chromosomes. HELP HELP HELP DUE IN 1 HOUR AND ONLY ANSWER IF YOU ARE 100% SURE Read the following passage written by a teen hero: YOU HAVE TO LOOK AT THE SENTENCE WITH THE ARROW POINTING TO IT! 1. I want to be a vocal advocate for nature.2. I reject the idea that I am too young to make a difference.3. I recently helped a group with a river cleanup.4. I was mortified to see the destruction of animals and plants.5. When I got home, I composed a letter to my state politicians and asked them to . allocate more money to the local river cleanup effort.6. I believe my vocation is to help citizens see that we are at a junction.7. We can decide to subject nature to abuse, or we can decide to be a benefactor to nature.8. I won't let obstacles detract from my mission.In sentence 4, the root in the word "mortified" means A. frustrationB. deathC. disappointmentD. sadness In this function, if the value of r were to increase, would the value represented by P also increase or stay the same? Why? Explain your answer using terms such as "rate of growth" and "initial value" in the context of the coin problem. What benefits might result if society showed more tolerance and respect for people with different gender identities and sexual orientations? Can someone help me ;-;With any questions, it doesnt have to be all of them- The image above shows Mount Rushmore, which is located in the U.S. state of South Dakota. Mount Rushmore is considered a relief sculpture because _____________a.it was carved into a rock surface on one side.b.it can only be viewed from a front perspective, rather than from all around.c.parts of the sculpture were carved so that over half of the image extends from the background to create shadowing.d.of all of the above reasons. Help please i dont understand explain briefly where the energy come from when a liquid Rises against Gravity in a capillary tube Pls help me Im so s t u p I d Ill mark brainliest if correct Answer this PLZZZZZZ An ideal gas occupies a volume V at an absolute temperature T. If the volume is halved and the pressure kept constant, what will happen to it's temperature?a. It will halve to T/2.b. It will increase to 3T.c. It will increase to 2T.d. It will remain the same. Explain how the mineral gold might form? For science Which of the following plant propagation methods requires sterile conditions? hybridization clone by layering root division tissue culture ((60 POINTS!! PLEASE HELP)))WRITTEN RESPONSEDescribe 3 pieces of evidence that you could use to support the theory of evolution. anyone help pls!! will mark brainliest Sleep is an important need for people, explain sleep and fourdifferent stages of sleep.