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Atoms and reactions

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Question 13

0.62 g of element X\text{X}X is reacted with 0.80 g of O2\text{O}_2O2​ to form an oxide with the formula X2O5\text{X}_2\text{O}_5X2​O5​.

What is the identity of element X\text{X}X?

A

Nitrogen

B

Phosphorus

C

Vanadium

D

Arsenic

Markscheme

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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