Carbon dioxide dissolves in water to form a mixture which contains hydrogencarbonate ions and hydrogen ions. (ii) The solution formed is slightly acidic.
Describe how you would use Universal Indicator paper to determine the pH of this solution.
(iii) Carbon dioxide is a greenhouse gas which causes climate change.
Explain how carbon dioxide contributes to climate change.

(iv) State the name of one other greenhouse gas and give one source of this gas.
Gas
source
b. i. define the term electrolysis