The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Option (c) is the correct answer.

Explanation:

Nuclear fission is a reaction in which a heavy nucleus when bombards with a neutron(s) then it results in the formation of neutrons along with smaller nuclei of equivalent size and magnitude and emission of energy.

Thus, we can conclude that out of the given options, the nuclear fission process releases neutrons and energy.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%