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A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Feb/Mar 2018 · Q31 Mark

Drinking water may contain dissolved calcium hydrogencarbonate, Ca(HCO₃)₂. How many electrons are present in a hydrogencarbonate anion?

A30
B31
C32
D33

✓ Correct answer

C: 32

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About this question

Topic
Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Feb/Mar 2018 Paper 1 Variant 2, question 3.

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