U1-1-0 - N4 revision Flashcards
Use this to revise the Rate of Reaction topic, which is part of the Chemical Changes and Structure unit. This topic covers: factors which affect reaction rate, average rate calculations, monitoring rate experimentally and rate graphs.
1
Q
The reaction is complete at point …
A
C.
2
Q
Reaction rate can be increased by ________ the particle size.
A
decreasing
3
Q
A substance that speeds up chemical reactions but can be recovered chemically unchanged at the end of the reaction.
A
Catalyst
4
Q
Reaction rate can be increased by ________ the temperature.
A
increasing
5
Q
Reaction rate can be increased by ________ the concentration.
A
increasing
6
Q
Catalyst
A
A substance that speeds up chemical reactions but can be recovered chemically unchanged at the end of the reaction.
7
Q
Besides increasing reaction rate, what can a catalyst do?
A
Allows a reaction to happen at a lower temperature
Catalysts reduce how much energy reactants need to react
