Unit 9: Reactions

During a reaction, atoms are

• created

• destroyed

• neither created or destroyed - just rearranged

Tags

NGSS.MS-PS1-5

How many total atoms are in this compound? Al₂O₃

• 2

• 5

• 6

• 3

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NGSS.MS-PS1-1

How many F atoms are in this compound?

MgF₂

• 2

• 6

• 8

• 12

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NGSS.MS-PS1-1

Is a copper penny turning greenish after a few years a chemical or physical change?

• Chemical Change

• Physical Change

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

the starting materials in a chemical reaction are called what?

• Products

• Reactants

• Starters

• Enders

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

• Product

• Reactant

• Starters

• Enders

Tags

NGSS.MS-PS1-2

Which chemical equation matches the model shown?

• 3C + 4O --> 3CO2

• 3C + 2O2 --> 3CO2

• C3 + 4O --> 3CO6

• C3 + 2O2 --> 3CO6

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the basic building blocks for all matter?

• atoms
• elements
• compounds
• chemicals

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NGSS.MS-PS1-1

What is a molecule?

• Two or more atoms bonded together
• One element
• One atom
• Solid, Liquid, Gas

Tags

NGSS.MS-PS1-1

The substances listed on the right side of a chemical equation are the

• Yields

• Reactants

• Products

• Precipitates

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5