URGENT!! Which substance is reduced in this following reaction? (which element goes through reduction).
Explain! (define what's going on, etc)

2Mg + O2 --> 2MgO

i think it's oxygen

Explanation:

the smart kid in my class said so lol

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).