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C2.4 Rates and Energy

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Total cards: 10•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (10)

#1
Front (Question)

What is activation energy?

Back (Answer)

The minimum energy required to start a chemical reaction

#2
Front (Question)

Describe how using smaller marble chips affect the rate of reaction?

Back (Answer)

Increases surface area Increases rate of reaction

#3
Front (Question)

Explain how using smaller marble chips affect the rate of reaction?

Back (Answer)

Increases the amount of marble chips exposed so there are more frequent collisions

#4
Front (Question)

Explain how increasing temperature affects the rate of reaction?

Back (Answer)

Particles move faster so collide more frequently increasing the rate of reaction

#5
Front (Question)

Explain how increasing concentration affects the rate of reaction?

Back (Answer)

Particles are more crowded so collide more frequently increasing the rate of reaction

#6
Front (Question)

How do catalysts affect the rate of reaction?

Back (Answer)

Lower the activation energy increasing the rate of reaction

#7
Front (Question)

what is an advantage of using a catalyst to speed up a chemical reaction?

Back (Answer)

Uses less energy so costs less produces less carbon dioxide reducing global warming

#8
Front (Question)

What is an exothermic reaction?

Back (Answer)

Transfers energy to the surroundings

#9
Front (Question)

What is an endothermic reaction?

Back (Answer)

Absorbs energy from the surroundings

#10
Front (Question)

In a reversible reaction, if the forwards reaction is exothermic, the backwards reaction is….

Back (Answer)

endothermic.