Bumgarner Amplify Chemical Reactions Chapter 2

In a chemical reaction, the substances that you start off with are called:

• reactants

• products

• elementals

• moles

In a chemical reaction, the substances that you end with are called:

• products

• reactants

• flocks

• elementals

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NGSS.MS-PS1-2

A chemical reaction occurs when:

• atoms rearrange to form new substances

• you create or destroy atoms to make new substances

• you change the types of atoms to make new substances

• ice melts from solid to liquid

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

To rearrange something means to:

• change the order or position of something.

• destroy something completely and start over from scratch

• make something disappear.

• remove exactly half of a substance.

During a chemical reaction, what happens to the atoms?

• They rearrange to form new substances.

• They change types to make new substances.

• Some are destroyed to make new substances.

• They stay in the same arrangements and do not make new substances

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NGSS.MS-PS1-5

In a chemical reaction, when do atoms change their type?

• Atoms never change their type in chemical reactions.

• Atoms change their type when a reaction involves fire.

• Atoms change their type when a reaction is explosive.

• Atoms change their type when

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NGSS.MS-PS1-5

In a chemical reaction, when can atoms be created or destroyed?

• 
  Atoms can never be created or destroyed in chemical reactions.

• Atoms can be created or destroyed in chemical reactions involving fire.

• Atoms can be created or destroyed in explosive chemical reactions.

• Atoms can be created or destroyed in chemical reactions with acids.

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NGSS.MS-PS1-5

How did the rust in Westfield form?

• Fertilizer had a reaction with the iron pipes, making rust.

• The iron pipes reacted with themselves, making rust.

• The fertilizer reacted with itself, making rust.

• The pipes were just old.

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NGSS.MS-PS1-2

Claim 1: The iron pipes changed into rust.

Claim 2: The fertilizer turned into rust.

Claim 3: The iron pipes + the fertilizer turned into rust.

Which claim is correct and how do you know?

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What is the minimum number of reactants needed for a chemical reaction to occur?

• 1

• 2

• 3

• 4