After 1 half life, 1/2
After 2 half lives, 1/4
After 3 half lives, 1/8
Remember the acronym "Oil Rig". Oxidation is loss, Reduction is gain of electrons. Calcium is losing electrons so it's an oxidation reaction.
The answer to your question is C. A solution is a homogeneous mixture composed of two or more substances, so it couldn't have been A and D. Since a solution can't have its substances separated by a chemical means because they are chemically bonded, thus they are able to be separated by physical means
e kajajdjae no squo viboes we eso doadks Answer:ipao han meExplanation:no
It is a molecule because hydrogen is an element.
An element is made up of molecules
