Question

Formula Equation: Write out a complete word equation including correct states of matter
2Al(s) + 6 HCl(aq) ⇒ 2 AlCl3 (aq) + 3 H2(g)

Answer 1

Write the balanced equation for the following chemical reactions.

(a) Hydrogen + Chlorine → Hydrogen chloride

(b) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride

(c) Sodium + Water → Sodium hydroxide + Hydrogen

Ans: (a) H2 (g) + Cl2 (g) → 2HCl (g)

(b) 3BaCl2 (s) + Al2(SO4)3 (s) → 3BaSO4(s) + 2AlCl3 (s)

(c) (c) 2Na(s) + 2H2O (l) → 2NaOH (aq) + H2 (g)

Answer 2

Explanation:

2 Al (s) + 6 HCl (aq) → 2 AlCl3 (aq) + 3 H2 (g)

This is an oxidation-reduction (redox) reaction:

6 HI + 6 e- → 6 H0

(reduction)

2 Al0 - 6 e- → 2 AlIII

(oxidation)

HCl is an oxidizing agent, Al is a reducing agent.

word equation:

2Aluminum + 6hydrochloric aci =>2Aluminium chloride + 3 hydrogen