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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 25

Calcium phosphate is a major constituent of bone mineral and is widely used in the manufacture of agricultural fertilizers. Calcium phosphate is an ionic compound.

The chemical formula of calcium phosphate is Ca3(PO4)2\text{Ca}_3(\text{PO}_4)_2Ca3​(PO4​)2​.

Give the total number of ions represented in the formula Ca3(PO4)2\text{Ca}_3(\text{PO}_4)_2Ca3​(PO4​)2​.

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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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