Chemical Reactions Review

In a combustion reaction one of the products is

• a hydrocarbon

• carbon dioxide

• oxygen

• nitrogen

Tags

NGSS.MS-PS1-5

What must be balanced in a chemical reaction?

• moles
• molecules
• coefficients
• atoms

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NGSS.MS-PS1-5

When one compound is broken up into multiple products, that type of reaction is...

• combination
• decomposition
• single replacement
• double replacement

Name one diatomic molecule

• hydrogen
• neon
• carbon
• sodium

Tags

NGSS.MS-PS1-1

Which of the following indicates a chemical change?

• Change in state of matter
• Temperature change
• Change in size 
• Change in shape

Tags

NGSS.MS-PS1-2

Fizzing, foaming, and burning are all examples of

• physical change

• chemical change

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NGSS.MS-PS1-2

The formation of a solid when two liquids combine is called?

• Solidification

• Freezing

• Precipitate

• Solubility

Tags

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

Ms. Bristol measured the mass of a closed beaker containing several ice cubes. The mass was 100g. An hour later, after the ice cubes had melted, Ms. Bristol measured the mass of the beaker again. What was the mass of the beaker of water the second time?

• 50 g

• 75 g

• 100 g

• 150 g

Tags

NGSS.MS-PS1-5

According to the Law of Conservation of Mass,

• matter is always created in a chemical reaction

• matter is always destroyed in a chemical reaction

• matter is created and then destroyed in a chemical reaction

• matter is not created or destroyed in a chemical reaction

Tags

NGSS.MS-PS1-5