When an air bubble rises in water, what happens to its mass, volume, and density?

Answers

Answer 1

When an air bubble rises in water, it's mass remains same whereas density decreases and volume increases.

What happens to mass, volume, and density when an air bubble rises in water?

When an air bubble rises in the water, then mass of the air in the bubble does not change. The volume of bubble increases as the pressure on it decreases. Volume of the bubble becomes almost 1.6 times to initial volume of bubble.

Pressure decreases as as it ascends, less water is above it that is pressing down on it. As, the mass is unchanging but volume is increasing, then the density decreases.

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Related Questions

Use the Nernst equation to calculate the concentration of the unknown solution. Base this on your experimental voltage of 1.074 V for the galvanic cell with this unknown combined with your copper half-cell. Use the unrounded [Cu2+] value of .050179 M and the unrounded value of the constants as listed in the file link near the top of this assignment to avoid round-off error.

Answers

Answer:

0.3793 M

Explanation:

The unknown metal is zinc. So the equation of the reaction is;

Zn(s) + Cu^2+(aq) -------> Zn^2+(aq) + Cu(s)

From Nernst equation;

E = E° - 0.0592/n log Q

[Cu2+] = 0.050179 M

n = 2

[Zn^2+] = ?

E = 1.074 V

E° = 0.34 - (-0.76) = 1.1 V

Substituting values;

1.074  = 1.1 - 0.0592/2 log [Zn^2+]/0.050179

1.074 - 1.1 = - 0.0592/2 log [Zn^2+]/0.050179

-0.026 = -0.0296  log [Zn^2+]/0.050179

-0.026/-0.0296 = log [Zn^2+]/0.050179

0.8784 =log [Zn^2+]/0.050179

Antilog(0.8784) = [Zn^2+]/0.050179

7.558 =  [Zn^2+]/0.050179

[Zn^2+] = 7.558 * 0.050179

[Zn^2+] = 0.3793 M

read carefully and do this questions all part all questions if someone do this questions I will make you brainly and give you thanks.

Answers

Answer:

2a. Calcium chloride

2b.hydrochloride acid

2c. water molecules

2d.hydrochloric acid

2e.carbon dioxide

Explanation:

CaCO3+2HCl=CaCl2+CO2+H2O

Can someone help me with these two?

Answers

Answer:

adding

opposite

Explanation:

dont blame me if u get them wrong

Answer:

first one is adding i belive and second one is opposite

Explanation:



A sample of a compound was found that has 40.25g of (C) Carbon and 59.75g of (O) Oxygen.

What is the empirical formula for this sample.

Answers

Answer:

CO

Explanation:

From the question given above, the following data were obtained:

Mass of Carbon (C) = 40.25 g

Mass of oxygen (O) = 59.75 g

Empirical formula =?

The empirical formula of the compound can be obtained as follow:

C = 40.25 g

O = 59.75 g

Divide by their molar mass

C = 40.25 / 12 = 3.354

O = 59.75 / 16 = 3.734

Divide by the smallest

C = 3.354 / 3.354 = 1

O = 3.734 / 3.354 = 1

The empirical formula of the compound is CO

how many oxygen (0) atoms are in a molecule C3H4O3

Answers

Answer: 3

Explanation: A P E X

Which processes are part of the fast carbon cycle?

A) Transpiration and fossil fuel formation

B) Transportation and photosynthesis

C) Cellular respiration and photosynthesis

D) Deforestation and fossil fuel formation

Answers

Answer:

B) Transportation and photosynthesis

C) Cellular respiration and photosynthesis

what the the noble gas configuration for krypton

Answers

Answer:

[Ar] 3d¹⁰ 4s² 4p⁶

Explanation:

Krypton is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. With rare exceptions, krypton is chemically iner,

Fill in the [?]: 5,481 g = [?] lb. ​

Answers

Answer:

12.084 lb

Explanation:

1 gram = 0.00220462 lb

multiply number of grams by 0.00220462

Ex. 2000 g x 0.00220462 = 4.409 pounds

An unknown hydrocarbon reacts with oxygen to produce carbon dioxide and water. The number of oxygen molecules in the reactants is the same as the number of hydrocarbon molecules. What are the two possibilities for the molecular formula of the hydrocarbon?

Answers

Explanation:

Hydrocarbon combustion refers to the chemical reaction where a hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat. Hydrocarbons are molecules consisting of both hydrogen and carbon. They are most famous for being the primary constituent of fossil fuels, namely natural gas, petroleum, and coal. For this reason, fossil fuel resources are often referred to as hydrocarbon resources.[1] Energy is obtained from fossil fuels through combustion (burning) of the fuel. Although impurities exist in fossil fuels, hydrocarbon combustion is the primary process in the burning of fossil fuel.

What is the percentage by mass of chromium in sodium dichromate (VI) Na2
Cr2
O7
?​

Answers

Answer:

39.7%

Explanation:

To obtain the percentage composition of chromium (Cr) in Na₂Cr₂O₇, do the following:

Molar mass of Na₂Cr₂O₇ = (23×2) + (52×2) + (16×7)

= 46 + 104 + 112

= 262 g/mol

Mass of Cr in Na₂Cr₂O₇ = 2 × 52 = 104 g

Percentage composition of Cr = mass of Cr / Molar mass of Na₂Cr₂O₇ × 100

= 104 / 262 × 100

= 39.7%

Thus, the percentage composition of chromium (Cr) in Na₂Cr₂O₇ is 39.7%

structure of 2,6-diiodo-4-methyl-5-propylheptane​

Answers

Answer:

diiodo????

Explanation:

recheck the question and resend

Connor turns on a hair dryer to style his hair in the morning. Which choice identifies all of the energy transformations in the system?
electrical -- heat sound, and motion
electrical -- sound and motion
heat-electrical and sound
heat and sound -motion

Answers

Answer:

It is electrical → heat, sound, and motion

because a hair dryer makes heat to dry your hair and sound is the blowing and motion is how it goes

Explanation:

Answer:

A

Explanation:

electrical -- heat sound, and motion

why metals are good conductor of electricity​

Answers

Explanation:

silver is the best conductor

Answer:

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions

This is the chemical formula for the compound calcium chloride: CaCl2

In this compound, how many atoms are combined?
O1
02
O3
O4

Answers

Answer:

3

Explanation:

1 Calcium atom and two chlorine atoms

Mixing hydrochloric acid and sodium hydroxide is an example of an exothermic
reaction. This means...
Select one
energy is taken in during the chemical reaction
hydrochloric acid and sodium hydroxide are the products of the reaction
Energy released during the chemical reaction
There is no change in energy during the chemical reaction

Answers

Answer:

exothermic means that energy was released during the chemical reaction

Explanation:

Given 5.86 grams of NaN3, how many grams of Na are produced?

Answers

Answer:

what no entiendo nada jahag6

When 5.86 grams of NaN3, then 22.99 gram of Na are produced by using mole formula.

What is gram ?

A thousandth of a kilo-gram in terms of mass in the metric system.

What is mole?

A mole is a unit of measurement for atom amount. A mole of Iron atoms weighs heavier than just a mole of Carbon molecules because it is measured by the number of atoms present instead of by weight.

The reaction can be written as:

[tex]2 Na N_{3}[/tex] → 2Na + [tex]3N_{3}[/tex].

It can be seen that 2 mole of sodium azide give 3 mole of nitrogen molecule.

Calculate the moles of Na.

Moles of Na = 1 mol sodium azide × 2 mol of Na / 2 mol sodium azide = 1 mole of Na.

Calculate the mass of Na.

Mass of Na = 1 mol Na × 22.99 g Na / 1 mol Na = 22.99 gNa.

Therefore, the mass of Na will be 22.99 gram

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Practice Problem 12.39 Partially correct answer. Your answer is partially correct. Try again. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation because the major product is Entry field with incorrect answer 2-methylcyclohexanol , which is a Entry field with incorrect answer secondary alcohol. These alcohols do not generally undergo oxidation. The minor product (Entry field with incorrect answer 1-methylcyclohexan-2-ol ) is asecondary alcohol and can undergo oxidation to yield a(n)

Answers

Answer:

See explanation and image attached

Explanation:

The acid-catalyzed hydration of 1-methylcyclohexene proceeds by an SN1 mechanism. The reaction involves the formation of carbocations.

Two carbocations are formed leading to the major and minor products. The major product is obtained from the tertiary (more stable) carbocation while the minor product is obtained from the secondary (less stable carbocation).

Tertiary alcohols are not oxidized, hence the major product does not undergo oxidation. However, secondary alcohols are oxidized to ketones.

If the density of a sample of skim milk is 1.04 g/mL, how many grams are in 0.50 qt of skim milk?

Answers

Answer:

16grs in 0.5ml of milk

Explanation:

16gr in 0.5 ml of milk

List four kinds of energy. Give a brief definition of each.

Answers

Answer:

Mechanical Energy- Energy that result from movement or the location of the object. Is the sum of kinetic and potential energy.

Thermal Energy- Thermal energy or heat energy reflects the temperature difference between two systems.

Nuclear Energy-  is energy resulting from changes in the atomic nuclei or from nuclear reactions.

Chemical Energy- results from chemical reactions between atoms or molecules.

More:

Kinetic energy- is the energy of motion of a body. It ranges from 0 to a positive value.

Electromagnetic energy- (or radiant energy) is energy from light or electromagnetic waves.

Sonic energy-  is the energy of sound waves. Sound waves travel through the air or another medium.

Gravitational energy- energy associated with gravity involves the attraction between two objects based on their mass.

Ionization energy- is the form of energy that binds electrons to the nucleus of its atom, ion, or molecule.

Potential energy- is the energy of an object's position.

Explanation:

Hope this helps

Looking at the following equation, which is the correct order of coefficients?

NH3 + O2 --> NO + H2O

Answers

2NH3 + 302---> 2NO + 3H20

there is 6.4% sales tax on 1,500 television how much tax is owned

Answers

Answer:

What you need to know before I explain is how to add percents onto numbers.  What I'm saying is what and how to do 6.4% x 1500

1. You can't do a percent and number together, that's impossible

What you can do is convert the percent (6.4%) into a decimal

2. 6.4% is equivalent to 6.4/100, which is equivalent to 0.064

3.  Now, you multiply 0.064 x 1500

You will notice, hopefully, that you have a number smaller than 1500, but do not panic, you are on the right track!

4. Using the number you got, add that to 1500, and there's your total!

But, if you want only the tax, keep that small number you started off with!

Explanation:

Charcoal from the dwelling level of the Lascaux Cave in France gives an average count of 0.97 disintegrations of C-14 per minute per gram of sample. Living wood gives 6.68 disintegrations per minute per gram. Estimate the date of occupation and hence the probable date of the wall painting in the Lascaux Cave. (Half-life of C-14 is 5568 years)

Answers

Answer:

15502 years

Explanation:

From;

0.693/t1/2 = 2.303/t log [Ao]/[A]

Where;

t1/2 = half life of C-14

t = time taken

[Ao] = count rate of living sample

[A] = count rate of the charcoal under study.

0.693/5568 = 2.303/t log (6.68/ 0.97)

1.245 * 10^-4 = 2.303/t log (6.887)

1.245 * 10^-4  = 1.92998/t

t = 1.92998/1.245 * 10^-4

t = 15502 years

515282 quarts into milliliters. I

Answers

Answer:

487638640,7819

dndndnndndbxbdbdbdbdb

The law that states when different compounds are formed by a combination of the same elements, different masses of one element combine with the same fixed to other elment

Answers

Answer:

The law of multiple proportions states that whenever the same two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers.

I agree with the answer top

What can nonmetals be used to make, please talk about the physical properties of nonmetals.

Answers

Answer:

nonmtals:

Uses of nonmetals in our daily life: Oxygen which is 21% by volume helps in the respiration process. It is also used for manufacturing of steel and provides high temperature in metal fabrication process. ...

Nonmetals used in fertilizers: Fertilizers contain nitrogen. It helps in plant growth. ...

Nonmetals used in crackers

Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets. Conduction: They are poor conductors of heat and electricity. Seven non-metals exist under standard conditions as diatomic molecules: H2(g)

Explanation:

Would you expect a reaction to occur with Hydrogen gas and Copper (II) chloride?

Answers

Yes

The copper itself can react with hydrogen

Here is the chemical reaction

2CuCl2(aq) + H2(g) -> 2CuCl(s) + 2HCl(g)

A combustion reaction involves the reaction of a substance with oxygen gas. The complete combustion of any hydrocarbon (binary compound of carbon and hydrogen) produces carbon dioxide and water as the only products. Heptane is a hydrocarbon that is found in gasoline. Complete combustion of heptane produces 7 liters of carbon dioxide for every 8 liters of water vapor (both measured at the same temperature and pressure). What is the ratio of carbon atoms to hydrogen atoms in a molecule of heptane

Answers

Answer:

7/16

Explanation:

The general formula for the combustion of alkanes is;

CnH2n+2 + 3n+1/2 O2  -------> nCO2 + (n+1)H2O

So, we have;

CnHn + nO2 ------> 7CO2 + 8H2O

So there are 7 carbon atoms and 16 hydrogen atoms in heptane according to the law of conservation of mass.

Therefore, heptane is; C7H16

The ratio of carbon to hydrogen is now; 7/16

Which gas is described incorrectly in the passage?
(The answer choices are the capitalized words)

Gases such as carbon dioxide, nitrogen, and oxygen are constantly recycled in the atmosphere through different processes. For example, plants absorb CARBON DIOXIDE and releases OXYGEN during photosynthesis. On the other hand, plants and animals both take in oxygen and release CARBON DIOXIDE is removed from the atmosphere by the process of rock weathering.

Answers

Answer:

Nice

Explanation:

molecular formula of CH3-CH2-CH2-CH2-CH2-Cl​

Answers

Answer:

C₅H₁₁Cl

Explanation:

Count all the carbon, hydrogen, and chlorine atoms. The number of atoms of each element is the subscript for each element in the formula. No subscript is understood to be one. Carbon goes first, hydrogen goes second, and chlorine goes last when writing the formula.

How many moles are in 8.30 X 1023 molecules of H2O? with the step

Answers

Answer:

Answer: 1.38 moles

Explanation: According to Avogadro's law, 1 mole of every substance contains Avogadro number of particles (atoms, molecules or ions) i.e.6.023*10^23  particles.

Given : 1 mole molecule of water contains 6.023*10^23 molecules of water.

6.023*10^23  molecules are present in = 1 mole

 8.30*10^23molecules will be present in =

1/6.023*10^23 ×8.30*10^23=1.38 moles

Thus  molecules is equal to 1.38 moles.

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