Question

Suppose six atoms of oxygen are present at the beginning of a chemical reaction. How many oxygen atoms are present when the reaction is over. a) always six. b) fewer than six. c) more than six. d) no way of telling

Answer 1

The answer should be a) always six. The chemical reaction is the process of molecule break down and form again. So the molecule will change but the atom will not change both type and number.

Answer 2

It should be a) always six, because what you start with is what you will end with.