10. How do substances change after a chemical reaction? cal
A They lose mass.
B Their atoms are rearranged.
C Their atoms lose electrons.
D They change phase.

I'm pretty sure the answer is B

Explanation:

Because when a chemical reaction takes place the substances atoms rearrange and turn into a different substance.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

the answer is 0.42 is that is an option. this question provides no info