If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Atoms and Molecules — quick quiz

5 real SOF NSO questions on Atoms and Molecules. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

EASY

The atomic mass of calcium is 40 u and that of oxygen is 16 u. What is the molecular mass of calcium carbonate (CaCO₃)?