Chemical Reactions

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  • Created by: kclifton
  • Created on: 13-09-17 13:06
Do the reactant particles move quickly or slowly when the temperature is increased?
They move quickly
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If the temperature is increased do the particles have more energy or less energy?
They have more energy
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Reactions can go at all sorts of different rates. True or false?
True
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What do you need to do to the measure of the rate of reaction?
You need to do an experiment
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What happens when the limiting reactant is used up?
The reaction stops
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What is one of the slowest reactions?
Rusting of Iron
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Burning is not a very fast reaction. True or False?
False
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An explosion is a very fast reaction that releases a lot of gaseous products. True or False?
True
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Suggest one way the rate of chemical reaction can be changed?
1) Increase the temp 2) increase the concentration 3) increase t he pressure 4) increase the surface area 5) use a catalyst
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The rate of a chemical reaction can be changed by altering the concentration of a reactant in solution, or the pressure of a gaseous reactant. True or False?
True
10 of 14
True or False? Using smaller particles increases the rate of reaction?
True
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What is the effect of a catalyst?
Increases the rate of reaction
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In a chemical reaction mass is not always conserved. True or False?
False
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What is a Catalyst?
a substance which increases the speed of reaction without being chemically changed
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Other cards in this set

Card 2

Front

If the temperature is increased do the particles have more energy or less energy?

Back

They have more energy

Card 3

Front

Reactions can go at all sorts of different rates. True or false?

Back

Preview of the front of card 3

Card 4

Front

What do you need to do to the measure of the rate of reaction?

Back

Preview of the front of card 4

Card 5

Front

What happens when the limiting reactant is used up?

Back

Preview of the front of card 5
View more cards

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