Protons are positively charged and repel other protons. which other particle is found in the nucleus and separates protons so that the strong force can hold the nucleus together?
a) electrons
b) neutrons
c) protons
d) quarks

Explanation:  THE ANSWER IS B,NEUTRONS..I TOOK THE TEST!!! DO NOT LISTEN TO THE 1ST ANSWER! IT IS B!!

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

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%