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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 24

In deep sedimentary basins, the iron-bearing mineral siderite (FeCO3\text{FeCO}_3FeCO3​) undergoes diagenetic alteration in the presence of pore-water calcium ions to form the double carbonate mineral ankerite, CaFe(CO3)2\text{CaFe}(\text{CO}_3)_2CaFe(CO3​)2​.

Complete the ionic equation for this conversion of siderite into ankerite.

.....FeCO3+.....→CaFe(CO3)2+Fe2+ \text{.....}\text{FeCO}_3 + \text{.....} \rightarrow \text{CaFe}(\text{CO}_3)_2 + \text{Fe}^{2+} .....FeCO3​+.....→CaFe(CO3​)2​+Fe2+
[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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