A salt is made by adding an excess of an insoluble metal oxide to an acid. How is the excess metal oxide removed from the mixture?
An element forms an oxide which is acidic in nature.Is the element a metal or non-metal?
Write the balanced equations for the preparation of the following salts in the laboratory :
(a) A soluble sulphate by the action of an acid on an insoluble base,
(b) An insoluble salt by the action of an acid on another salt,
(c) An insoluble base by the action of a soluble base on a soluble salt,
(d) A soluble sulphate by the action of an acid on a metal.