Why is the reaction 2Mg + O2 + 2MgO a nonreversible reaction? A. It has more than one reactant.
B. It has only one product.
C. It can occur only between gases.
D. It can go in only one direction.​

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

What three things does a balanced equation show you?