Unit 3 · Stoichiometry

Question Bank

Cambridge IGCSE Chemistry 0620 · 30 questions

Q13Stoichiometry

Relative atomic mass compares the average mass of an atom with

(a)a hydrogen molecule

(b)an oxygen atom

(c)1/12 of the mass of a carbon-12 atom

(d)one gram

Correct answer: (c) 1/12 of the mass of a carbon-12 atom

Explanation: It has no unit.

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