rate of reaction Flashcards
1
Q
what affects the rate of reaction(4)
A
temp
concentration
catalyst
surface area of solids
2
Q
what could make a reaction quicker(4)
A
- increase in temp
- increase in concentration
- catalyst added
- solid reactant crushed up into smaller bits
3
Q
how do you measure rates of reaction
A
amount of reactant used/amount of product formed divided by time
4
Q
whats precipitation
A
the product of the reaction when it goes cloudy
5
Q
how can precipation be measured
A
observe a mark and time how long it takes to dissapear
6
Q
how can you measure the volume of gas given off
A
gas syringes
7
Q
what happens if there is more collisions
A
speeds up the rate of reaction
8
Q
what increases foc(3)
A
high temp
high concentration
larger suface are
9
Q
whats a catalst
A
a substance which speeds up a reaction without being changed or used up
