Molal or molar? There is a difference
Answer/Explanation:
In June 1998 in Japan a scientist discovered that neutrinos (which is a type of particle) has weight, mass. This was later proven with some very convincing strong evidence.
<u><em>~ LadyBrain</em></u>
it is water energy :) this is easy
The answer should be Pure substance
combustion because one atom in wrong place will make it combust