1.What is stored energy due to the interactions between objects or particles? 2.What is the sum of the potential energy and kinetic energy in a system?
3.What is the energy stored in and released from the nucleus of an atom?
4. What is a disturbance that transfers energy from one place to another without transferring matter?
5.What is the energy due to motion?
6.What is the ability to cause change?
What is the energy carried by sound waves?

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%

the answer is minerals.

i dont know the answe