(a) Explain, with example, how the physical states of the reactants and products can be shown in a chemical equation.
(a) Balance the following equation and add state symbols:
Zn + HCl → ZnCl2 + H2
(b) Convey the following information in the form of a balanced chemical equation:
"An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in solution."

Question

(a) Explain, with example, how the physical states of the reactants and products can be shown in a chemical equation.
(a)	Balance the following equation and add state symbols:
Zn + HCl → ZnCl2 + H2
(b)	Convey the following information in the form of a balanced chemical equation:
"An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in solution."

MyClass24 · Accepted Answer

The physical state of the reactants and products in a chemical reaction can be shown by using the letters in the round brackets if it is solid then (s) liquid (l) gas (g) and aqueous (aq)

Example: Ca(OH)2 (aq) + CO2 (g) &rarr; CaCO3 (s) + H2O (l)

Zn (s) + 2HCl (aq) &rarr; ZnCl2 (aq) + H2 (g)
FeSO4(aq) + 2NaOH (aq) &rarr; Fe(OH)2 (s) + Na2SO4 (aq)