Skip to content

Course home

Sign up

3.1 Introducing chemical reactions

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859
Question 55
H

Barium chloride solution reacts with sodium sulfate solution. A white precipitate of barium sulfate forms.

What is the ionic equation for this reaction?

[1]
A

Na++Cl−→NaCl\mathrm{Na^{+} + Cl^{-} \rightarrow NaCl}Na++Cl−→NaCl

B

BaCl2+SO42−→BaSO4+2Cl−\mathrm{BaCl_{2} + SO_{4}^{2-} \rightarrow BaSO_{4} + 2Cl^{-}}BaCl2​+SO42−​→BaSO4​+2Cl−

C

Ba2++2Cl−→BaCl2\mathrm{Ba^{2+} + 2Cl^{-} \rightarrow BaCl_{2}}Ba2++2Cl−→BaCl2​

D

Ba2++SO42−→BaSO4\mathrm{Ba^{2+} + SO_{4}^{2-} \rightarrow BaSO_{4}}Ba2++SO42−​→BaSO4​

Markscheme

3.1 Introducing chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.1 Introducing chemical reactions

134 exam-style questions on OCR GCSE Chemistry 3.1 Introducing chemical reactions, covering 3.1.1 Writing formulae and balanced chemical equations, 3.1.2 Formulae of compounds from ions, and state symbols, 3.1.3 Conservation of mass and observed changes in mass, 3.1.4 Half equations and balanced ionic equations, 3.1.5 The mole and the Avogadro constant, and 3.1.6 Stoichiometry, limiting reactants and reacting masses. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank