
1. Metal carbonates react with acids to form a
, water and the gas
.
2. The gas given off in the reaction can be tested for with
which is turned
.
3. When the
powder
carbonate is dissolved in sulphuric acid a
solution of the salt copper
is formed.

4. Complete (a sort of balance!) the
:
(a)
carbonate + hydrochloric acid ==> calcium
+
+ carbon dioxide
(b)
carbonate + nitric acid ==> zinc
+ water +
(c) magnesium
+
acid ==>
sulphate + water + carbon dioxide