Question

Write the chemical equation of the chemical reaction taking place in the
following;
a) A white precipitate is formed on mixing Barium chloride solution
with Sodium sulphate solution.


b) Magnesium wire burns in air and form its oxide,​

Answer 1

Explanation:

a)BaCl2(aq)+Na2SO4(aq)→Ba2SO4(s)+2NaCl(aq)

b):2Mg(s)+O2→2MgO(s)

Answer 2

Answer:

(a) Na2So4 + bac Gives arise to. 3Nacl +BaSo4.

In this reaction Barium sulphate and sodium chloride are formed solution in water consist only sodium chloride because sodium chloride dissolves in water while Barium sulphate is settles down and a white precipitate is formed.

(b)2Mg+O2 gives arise to 2Mgo.

I hope it will help you.