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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 135

The molecular formula of phosphine is PH3\text{PH}_3PH3​.

State what this chemical formula shows about the number of phosphorus atoms and the number of hydrogen atoms combined in one molecule of phosphine.

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1.1 Formulae, equations and hazards Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 Formulae, equations and hazards

230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.

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