A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2012 · Q171 Mark

Use of the Data Booklet is relevant to this question. 1.15 g of a metallic element reacts with 300 cm³ of oxygen at 298 K and 1 atm pressure, to form an oxide which contains O²- ions. What could be the identity of the metal?

Acalcium

Bmagnesium

Cpotassium

Dsodium

✓ Correct answer

D: sodium

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2012 Paper 1 Variant 2, question 17.

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