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Atoms and reactions

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Question 48

Vanadium(V) oxide, V2O5\text{V}_2\text{O}_5V2​O5​, is reduced to vanadium metal by heating with calcium. What is the minimum mass of Ca\text{Ca}Ca required to reduce 45.45 g45.45\text{ g}45.45 g of vanadium(V) oxide?

(Use the relative atomic masses: V=50.9\text{V} = 50.9V=50.9, Ca=40.1\text{Ca} = 40.1Ca=40.1, O=16.0\text{O} = 16.0O=16.0)

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Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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