Chemical Reactions Review

Surface Area of reactants Increase

• Reactions go faster

• Reactions go slower

Temperature of reactants Increase

• Faster

• Slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Temperature of reactants decreases

• Faster

• Slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

2H₂O + O₂ --> 2H₂O

• Synthesis

• Decomposition

Tags

NGSS.MS-PS1-5

CaCO₃ --> CaO + CO₂

• Synthesis

• Decomposition

2Cu₂O + C --> 4Cu + CO₂

• Single Replacement

• Double Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Which of the following represents a chemical change?

• cutting a piece of paper with scissors

• A warm pan cooling to room temperature

• burning a piece of notebook paper

• heating water to its boiling point

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• Change in color

• Production of Energy

• Formation of Gas

• All are correct

Tags

NGSS.MS-PS1-2

Fizzing, foaming, and burning are all examples of

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5