7.2 Chemical Reactions & Energy

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What is produced during a chemical reaction?

Back

Products

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a chemical reaction.

Back

Combining steel wool and vinegar.

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NGSS.MS-PS1-2

Front

What is the smallest particle of matter?

Back

Atoms.

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NGSS.MS-PS1-1

Front

In the molecule 4Fe2O, what does the '4' represent?

Back

It represents how many groups of molecules I have.

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NGSS.MS-PS1-1

Front

What is the term for the substances created during a chemical reaction?

Back

Products.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are reactants?

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Substances that undergo change during a chemical reaction.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the law of conservation of mass?

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In a chemical reaction, mass is neither created nor destroyed.

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NGSS.MS-PS1-5

Front

What is an endothermic reaction?

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A reaction that absorbs energy from its surroundings.

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NGSS.MS-PS1-4

Front

What is an exothermic reaction?

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A reaction that releases energy to its surroundings.

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NGSS.HS-PS1-4