C3

Rate of reaction
the speed with which a chemical reaction takes place
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Reaction time
the time it takes for a driver to step on the brake after seeing an obstacle
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Gradient
rate of change of two quantities on a graph; change in y/change in x
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Product
molecules produced at the end of a chemcial reaction
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Reactant
chemicals which are reacting together in a chemical reaction
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Concentration
the amount of chemical dissolved in a certain volume of solution
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Limiting Reactant
the reactant not in excess that gets used up by the end of the reaction
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Collision Theory
Different reactions can happen at different rates. Reactions that occur slowly have a low rate of reaction. Reactions that happen quickly have a high rate of reaction. For example, rusting is a slow reaction: it has a low rate of reaction.
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Catalyst
1.a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
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Relative atomic mass (Ar)
measure of the mass of one atom of the element
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Relative formula mass (Mr)
you just add together the Ar values for all the atoms in its formula.
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Percentage yield
comparing the actual yield with the predicted yield
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Atom economy
measure of the amount of starting materials that become useful products
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Other cards in this set

Card 2

Front

the time it takes for a driver to step on the brake after seeing an obstacle

Back

Reaction time

Card 3

Front

rate of change of two quantities on a graph; change in y/change in x

Back

Preview of the back of card 3

Card 4

Front

molecules produced at the end of a chemcial reaction

Back

Preview of the back of card 4

Card 5

Front

chemicals which are reacting together in a chemical reaction

Back

Preview of the back of card 5
View more cards

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