Answer:
B
Explanation:
an alkene because of the presence of the double bond
alcohol because of the presence of the OH group
When the KClO3 decomposes, more oxygen is produced. I don't think I know any other possibility exists.<span />
The number of protons in an atom can be determined by the element's atomic number, and the number of electrons can be determined by subtracting by atomic mass by the atomic number.