Answer:
I thinks it's stress caused by plate movement hope this helps
Explanation:
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. ... Chemically, we say that the atoms have formed bonds.
1. sundering
2. talc
3 luster
Moles = mass / molar mass
molar mass of O2 is 32
therefore moles = 72/32
= 2.25 moles