Chemistry

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Rate of reaction =?
Amount of reactants disappearing or amount of products appearing/ time
1 of 10
How do you know a reaction has taken place?
Colour change,gas given off,temperature goes up,temperature goes down,precipitate is formed,pH changes
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What happens to the rate of reaction as the temperature increases?
It speeds up
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Small size chips with a large SA makes the rate of reaction...
Faster
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Large size chips with a smaller SA makes the rate of reaction...
Slower
5 of 10
The steeper the gradient at the start...
The faster the rate (Large SA)
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A catalyst The rate of reaction
Speeds up
7 of 10
It is Used up in the reaction
Never
8 of 10
What is an activation energy
The minimum energy required to start a reaction
9 of 10
What 2 things must happen for a reaction to start?
Particles must collide and they must have the activation energy
10 of 10

Other cards in this set

Card 2

Front

How do you know a reaction has taken place?

Back

Colour change,gas given off,temperature goes up,temperature goes down,precipitate is formed,pH changes

Card 3

Front

What happens to the rate of reaction as the temperature increases?

Back

Preview of the front of card 3

Card 4

Front

Small size chips with a large SA makes the rate of reaction...

Back

Preview of the front of card 4

Card 5

Front

Large size chips with a smaller SA makes the rate of reaction...

Back

Preview of the front of card 5
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