Are nails in a jar with water a chemical change

1 answer:

7 0

I would say it is a chemical change because after a while, the nails start to rust. Now they only rust after about a week though. But rust is a chemical change.

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Which statements explain the relationship between mass, velocity and kinetic energy? Select the TWO (2) that apply.

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Answer:

I think D

Explanation:

Kinetic energy has a direct relationship with mass, meaning as mass increases so does the kinetic Energy of an object.

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Answer:

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Answer:

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3 years ago

Which of the following does the internal energy of an ideal gas depend upon?

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Answer:

The correct option is: a. The internal energy depends upon its temperature.

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P·V=n·R·T

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Also, according to the Joule's second law, the internal energy (U) of the given amount of ideal gas depends on the absolute temperature (T) of the gas only, by the equation:

$U = c_{V}nRT$

Here, $c_{V}$ is the specific heat capacity at constant volume

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3 years ago