The combustion of elements in oxygen
1 mark · EasyState what you would observe when magnesium burns in pure oxygen.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
A bright white light is seen (or a bright white flame) and a white solid is formed.
Also accept: A bright white flame is seen; A white light is seen and white powder forms
Common mistakes: Saying only 'magnesium burns' with no observation
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States that burning magnesium produces a bright white flame or light, and/or a white solid or powder is formed.
Worked solution
When magnesium burns in pure oxygen, it produces a bright white light (or a bright white flame), and a white solid (magnesium oxide) is formed.