4.88x10^20 H2O2 molecules
It's B) electrons, is the right answer
The answer should be Aegle marmelos
C burning coal in a furnace
Explanation:
chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds