Topic 3.1 Formula Writing Part 1

Topic 3.1 Formula Writing

By Liu Amanda

Multiple Choice

How many Oxygen atoms (O) are in a  molecule  of CO₂

• 1
• 2
• 3
• 0

Multiple Choice

How many carbon atoms (C) are in a CO₂ molecule?

• 1
• 2
• 3
• 0

Multiple Choice

Aluminium carbonate has a chemical formula of Al₂(CO₃)₃.

Which of the following correctly describe aluminium carbonate?

• It is made of 3 elements and 11 atoms.

• It is made of 3 atoms and 14 elements.

• It has 2 Al atoms, 3 C atoms and 6 O atoms

• It has 2 Al atoms, 3 C atoms and 9 O atoms