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This question is about carbon dioxide.

a.

Which type of substance is carbon dioxide?

  • Compound
  • Element
  • Mixture
[1]
b.

A sample of 44 g44\text{ g}44 g of carbon dioxide contains 6.02×10236.02 \times 10^{23}6.02×1023 molecules. Which expression is used to calculate the mass of one molecule of carbon dioxide in grams?

  • 446.02×1023\frac{44}{6.02 \times 10^{23}}6.02×102344​
  • 6.02×102344\frac{6.02 \times 10^{23}}{44}446.02×1023​
  • 44×6.02×102344 \times 6.02 \times 10^{23}44×6.02×1023
[1]

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

Practise AQA GCSE Chemistry A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes with exam-style questions for Foundation and Higher tier. 64 questions covering Atoms, elements and compounds, Mixtures, The development of the model of the atom (common content with physics), Relative electrical charges of subatomic particles, Size and mass of atoms, Relative atomic mass, and Electronic structure, matched to the AQA GCSE Chemistry (8462) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

  1. GCSE
  2. /Chemistry
  3. /A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes