GCSE / O Levels Chemistry

In two experiments, 1 and 2, an excess of powdered calcium carbonate was reacted in a flask
with dilute hydrochloric acid.
In experiment 1, the carbon dioxide evolved was collected and the volume of gas measured at
regular intervals.
In experiment 2, the mass of the flask and its contents was measured at regular intervals.
The results of both experiments were plotted on graphs.
w
Y
volume
volume
mass
mass
time
time
time
time
experiment 1
experiment 1
experiment 2
experiment 2
Which graphs correctly show the results of these two experiments?
experiment 1
experiment 2
A
Y
B
D
N
N > N


Rate of Reaction | 2016 - O/N - 5070/12 | Q17