Answer:
An oxidising agent oxidises something else. Oxidation is loss of electrons (OIL RIG). That means that an oxidising agent takes electrons from that other substance.
Explanation:
Bioluminescence is a chemical reaction that takes place in a living organism when the organism emits light. Bioluminescence doesn't consume or produce heat, hence it can be neither endothermic nor exothermic reaction. It emits a heatless light not heat.
For bioluminescence, it could be said that it is an exoenergetic reaction because it uses energy from a chemical reaction to produce light.
Answer: CaC12
Explanation: Calcium chloride not 100% sure tho
C. Groups 13-16 contain metalloids.
If you look on a periodic table, these usually have a different color.
If you are referring to to the molecule, CO, it contains two atoms , C1+O1