(a)[2]
Describe how gas volume varies as pressure changes.
(b)[1]
What happens to the average distance between the molecules when the pressure is decreased?
(c(i))[1]
Use the equation to demonstrate that carbon dioxide undergoes reduction.
(c(ii))[1]
Which one of these processes does not give off carbon dioxide? Tick one box. respiration reaction of an acid with a metal oxide reaction of an acid with a carbonate thermal decomposition of limestone
(c(iii))[2]
Give two problems caused by an increase in the amount of carbon dioxide in the atmosphere.