chemical reactions unit quiz review

Which is the name of the kind of solid substance formed in this figure?  

• aqueous 
• precipitate
• acid
• synthesis 

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NGSS.MS-PS1-2

the starting materials in a chemical reaction

• Products
• Reactants
• Starters
• Enders

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NGSS.MS-PS1-5

a substance that is formed as the result of a chemical reaction

• Product 
• Reactant
• Starters
• Enders

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A green powder is heated & a gas is given off while it turns to a black solid. This describes

• Physical Change

• Chemical Change

• Change in State

• Change in Temperature

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NGSS.MS-PS1-2

Which of the following could indicate that a chemical change took place?

• Change in color

• Production of Energy

• Formation of Gas

• All are correct

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NGSS.MS-PS1-2

What does a chemical change result in?

• A change in state of the substance (ex. liquid to solid)

• A change in texture of the substance.

• A change in the way atoms are bonded to each other.

• A change in the appearance of the substance.

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NGSS.MS-PS1-2

NGSS.MS-PS1-1

Identify what type of change happening in the picture below...

• Chemical Change

• Physical Change

• Endothermic Reaction

• Exothermic Reaction

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NGSS.MS-PS1-4

Identify what type of change happening in the picture below...

• Chemical Change

• Physical Change

• Endothermic Reaction

• Exothermic Reaction

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NGSS.MS-PS1-2

Which of the following is an example of a physical change?

• A glass falling and shattering on the floor.

• Baking a birthday cake.

• Burning a piece of paper.

• Baking soda and vinegar mixing together.

Which is not a clue that could indicate a chemical change has occurred?

• Change in color

• Change in shape

• Release of energy

• Formation of an odor

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NGSS.MS-PS1-2