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Alchen [17]
3 years ago
14

What is mass? A. the force on an object caused by gravity B. the amount of space that something takes up C. the amount of matter

in an object D. how fast something is moving
Chemistry
1 answer:
Paraphin [41]3 years ago
7 0

The answer to this is C.

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Describe the difference between a chemical reaction and a physical change.
GREYUIT [131]
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.


Examples of chemical changes are burning, cooking, rusting, and rotting.

Examples of physical changes are boiling, melting, freezing, and shredding.
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3 years ago
Which statement is true?
MissTica

Answer:

The correct answer is in an exothermic reaction the energy of the product is less than the energy of the reactants.

Explanation:

Exothermic reaction is a type of reaction that generates heat.As a result in case of an exothermic reaction the energy of the reactant is more than the energy of the product.

       That"s why the enthalpy change in an exothermic reaction is always positive .

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3 years ago
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The butanamide molecule has an asymmetrical distribution of charge.

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3 years ago
In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor.
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The balanced chemical equation is:

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