Give two uses of carbon dioxide?
Uses of carbon dioxide:
Give two uses of:
(a) Carbon (b) Carbon dioxide (c) Methane
State two uses of dissolved carbon dioxide in water.
Making use only of substances chosen from those given below:
Dilute sulphuric acid Zinc Lead
sodium carbonate sodium sulphite calcium carbonate
Give the equations for the reactions by which you could obtain: (i) hydrogen (ii) sulphur dioxide (iii) carbon dioxide (iv) zinc carbonate (two steps required).
Give scientific reasons.
(a) Diamond is used to cut metals.
(b) Carbon dioxide is used for putting out fires.