What happens when an acid dissolves? O A. Oxygen is added to the solution.
O B. It is no longer an acid.
C. Hydrogen gas is released.
D. Ht increases in solution.

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false