A chemist performs a combustion reaction in which he burns 50.0g of magnesium in the presence of oxygen. If he
were to isolate and measure the mass of the magnesium
present in the product of the reaction, how much should he
find?
Select one:
o
25.09
o
100.09
50.0g
0.0g

The characteristics 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 an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.