The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2(M) HCl will be.............?

Q.1. How can we determine the products of reactants in a chemical reaction.
Q.2 Write balanced equation for the following.
(i) Action of heat on a mixture of copper and concentrated nitric acid.
(ii) Action of warm water on magnesium nitride.
(iii) Action of concentrated sulphuric acid on carbon.
(iv) Action of dilute hydrochloric acid on sodium sulphide.
(v) preparation ethane from sodium propionate.

Balance the following reaction by half reaction method.

-₄ (aq) + C₂H₂O₄ (aq) Mn²⁺(aq) + CO₂(aq)+ H₂O(l)

Give the explaination for the daniel cell setup between the zinc and copper.

Explain daniel cell.