Question

3. Translate the following statements into chemical equations and then
balance them.
a) Solutions of barium chloride and sodium sulphate in water react to give
insoluble barium sulphate and the solution of sodium chloride.
b) Sodium hydroxide solution (in water) reacts with hydrochloric acid
solution (in water) to produce sodium chloride solution and water.
c) Hydrogen gas combines with nitrogen to form ammonia.
d) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
e) Barium chloride reacts with aluminium sulphate to give aluminium
chloride and a precipitate of barium sulphate.
f) Potassium metal reacts with water to give potassium hydroxide and
hydrogen gas.​

Answer 1

Explanation:

When barium chloride combines with sodium sulphate in the form of their aqueous solutions, a white precipitate of barium sulphate is formed which is insoluble in water. ... This video explains the chemical changeoccurs during the reaction between sodium sulphate and barium chloride.

This reaction is a double displacement reaction as well as a precipitation reaction. This is a double displacement reaction because one component of each compound has exchanged places with each other. It is also called a precipitation reaction due to the formation of white precipitate of barium sulphate.

...Mark is the answer BRAINLIST