Chemical Reaction Test

Patrik mixed two colorless substances together in a sealed container. After mixing, Patrik found two white substances in the sealed container. Which of the following could make up the ending substances?

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens in ALL chemical changes?

• Change in state of matter

• A new substance is formed

• Bubbles are produced

• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If two substances react and the temperature of the mixture increases, the reaction is

• Not one that produces anything new

• Exothermic

• One that needs a catalyst

• Endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If two substances react and the temperature of the mixture decreases, the reaction is

• Endothermic

• Never going to happen unless it is heated

• Exothermic

• one that causes atoms to be destroyed

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You know you a chemical reaction has occurred if 

• there is a precipitate.

• there is a color change.

• there is a temperature change.

• All of these answers are evidence.

Tags

NGSS.MS-PS1-2

Is wood burning a physical or chemical change?

• Physical 

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is milk going sour a physical or chemical change?

• Physical 

• Chemical

Tags

NGSS.MS-PS1-2

Is mold growing on cheese a physical or chemical change?

• Physical 

• Chemical

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

Is copper tarnishing a physical or chemical change?

• Physical 

• Chemical

Tags

NGSS.MS-PS1-2

A copper penny turning green after a few years is an example of ...

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2