The night before the exam, sleep. A rested mind recalls what a tired one has only read.

Atoms and Molecules — quick quiz

5 SOF NSO-pattern questions on Atoms and Molecules. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 5

Hard

A sample of magnesium weighing 4.8 g is burnt in oxygen to form magnesium oxide. If 2.0 g of magnesium combines with 1.33 g of oxygen, what mass of magnesium oxide is formed according to the Law of Conservation of Mass? (Assume complete reaction)