three chemistry questions!?

Question

1. a type of chemical reaction in which one reactant is oxygen and one product is water, is called what?

2. an ion that's composed of only a single atom, is called what?

3. what is the only known polyatomic ion with a plus 1 charge?


if you could help me with any or all of these thanks you very much!

Answer 1

1) Oxidation. Combustion is a special case.
2) Atomic ion
3) The most common one is NH4+
There are many more, such as CH3NH3+, (CH3)2NH+, ....