Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Write the chemical formulae for the following compounds:
1. Lithium chloride
2. Aluminium chloride

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The chemical formulae for the following compounds are:
1. Lithium chloride
The chemical symbol of lithium and chlorine elements are Li and Cl. Lithium chloride consists of one lithium and one chlorine atom. Hence, its chemical formula is LiCl. [1 mark]
2. Aluminium chloride
The chemical symbol of aluminium and chlorine elements are Al and Cl. Aluminium chloride consists of one aluminium and three chlorine atom.
So, the chemical formula is $AlC{l}_3$. [1 mark]