O Level · Chemistry · Hard level · 7 questions
Stoichiometry & the Mole: Exam Style
Formulae, balanced equations, and the mole as the hub of every calculation, the section that turns up in every other topic and where working shown is the whole mark. This quiz is the hardest level, with O Level exam-style questions that mix the ideas together. 7 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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Your score is saved against Stoichiometry & the Mole, so you can see which topics are solid and which need another go.