Question

Lucy had two samples of different iron ores, haematite and magnetite.

The haematite sample weighed 5 g and contained 3.5 g of iron. The magnetite sample weighed 10 g and contained 7.2 g of iron. Which of the two iron compounds contains the larger proportion of iron? show working out.

Answer 1

magnetite

Step-by-step explanation:

proportion of iron in haematite = 3.5/5 x 100% = 70%

proportion of iron in magnetite = 7.2/10 x 100% = 72%