During the extraction of mercury from cinnabar, _______ gas is released.
(a) Name the acid formed when sulphur dioxide dissolves in water.
(b) Name the gas released when sodium carbonate is added to a solution of sulphur dioxide.
Question 8
(a) Name a gas that is released during the combustion of a fuel.
(b) The solid form of carbon dioxide is known as _____.
The gas released during photosynthesis is _____ (oxygen/carbon dioxide)