Chemical Formulae, Equations and Calculations Part 1

2 marks · Normal

Write the balanced chemical equation, including state symbols, for the reaction between sodium hydroxide solution and hydrochloric acid when they form sodium chloride solution and water.

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)

Must show: all state symbols correct; correct reactants/products; balanced equation

Also accept: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

Common mistakes: missing state symbols; incorrect balancing

Show mark scheme and worked solution

Marking points

M1 · 1 mark · Correct balanced chemical equation (all formulae and numbers; no errors)

M2 · 1 mark · All four state symbols present and correct; equation written in correct form (aq, l)

Worked solution

The reactants are sodium hydroxide solution and hydrochloric acid. The products are sodium chloride solution and water.