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Dennis_Churaev [7]
2 years ago
8

A molecule contains 18 atoms and undergoes a physical change. How does the physical change affect the total number of atoms of e

ach element? It remains the same. It increases. It changes to zero. It decreases.
Chemistry
2 answers:
ludmilkaskok [199]2 years ago
6 0

Answer:

it remains the same

Explanation:

nirvana33 [79]2 years ago
5 0

Answer:

It remains the same.

Explanation:

Physical changes will not affect the number of atoms in a molecule. Dissolving the substance and melting are physical changes which, if they are reversible, will not affect the chemical composition of the molecule.

In the moment in which the physical change is not reversible the molecules may undergo a chemical change and this it will affect the chemical composition. Sometimes when we try melting organic molecules and we end up carbonizing the compound forming carbon and maybe carbon dioxide and water beside other kind of compound that are formed when an organic compound is burned.

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Answer:

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Explanation:

hi girl i also wrote this in my test today so maube i hope it is correct.

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2 years ago
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aniked [119]

Answer:

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Explanation:

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2 years ago
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\The specific heat of aluminum is 0.21 cal g°C . How much heat is released when a 10 gram piece of aluminum foil is taken out of
atroni [7]

<u>Answer: </u>The amount of heat released is 84 calories.

<u>Explanation: </u>

The equation used to calculate the amount of heat released or absorbed, we use the equation:

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