End of the Unit Chemical Reaction Test

Which of the following is classed as a physical change?

• Temperature rise

• Colour change

• Ice melting

• Gas being given off

An exothermic reaction is when the temperature of a reaction increases?

• True

• False

Tags

NGSS.MS-PS3-4

During an endothermic reaction the temperature decreases during the reaction?

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In the summer, the Eiffel Tower is....?

• Bigger than in the winter because it contracts

• Smaller than in the winter because it contracts

• Bigger than in the winter because it expands

• Smaller than in the winter because it expands

Tags

NGSS.MS-PS1-4

Which reaction would be the fastest?

• Burning a tree trunk

• Burning a wooden splint

• Burning wood shavings

• Burning a forest of trees

Sarah used 10 grams of a catalyst in an experiment. How much of it would have been used up?

• 5 grams

• 7.5 grams

• 10 grams

• 0 grams

Which reaction would be the fastest?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following would NOT increase the rate of a reaction?

• Increasing the temperature

• Increasing the concentration

• Increasing the particle size

• Decreasing the particle size

Tags

NGSS.HS-PS1-5

Ice melts at what temperature in degrees celcius?

• 50

• 80

• 100

• 0

Tags

NGSS.MS-PS1-4

Water boils at what temperature in degrees celcius?

• 85

• 95

• 105

• 100

Tags

NGSS.MS-PS1-4