Question

Begin by writing formulas for the reactants and products, including physical states. When necessary use coefficients to balance the equation.

A) When solid sodium hydride, NaH, is added to water, hydrogen gas is released and aqueous sodium hydroxide forms.
B) Aluminum metal reacts with chlorine gas to form solid aluminum chloride.

Answer 1

NaH(s) + H₂O(aq) ⇒ NaOH (aq) + H₂ (g)

Al(s) + Cl₂(g) ⇒ AlCl₃(s)

Step-by-step explanation:

NaH - sodium hydride

H₂O - water

NaOH - sodium hydroxide

Al - aluminium

Cl₂ - Chlorine

AlCl₃ - aluminium chloride