Answer:
I think its the last one
Explanation:
its supposed to be H 2 O 2.
<span>In crystallography, the terms crystal system, crystal family, and lattice system each refer to one ... In total there are seven crystal systems: triclinic, monoclinic, orthorhombic, ..... A polar crystal possess a "unique" axis (found in no other directions) such ... lattices in three dimensions; each can apply in one lattice system only.</span><span>
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A scientific theory focuses on explaining a phenomenon, while a law will have a generalised statement about said phenomenon. Often times, we use laws to help us develop theories. =)
<span>46.06844 g/mol
yup
yup
yup</span>
If a light bounced off at a 40 degree angle it would bounce off at an 80 degree angle. Hope i am right
