What is an ion in your own words but be more detailed about what you say. (don't send a link or file)

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Why are people not able to scuba dive in the deep part of the ocean

What is the subscript for oxygen in its molecular formula