Question

how the chemicals are made​

Answer 1

Two or more elements combined into one substance through a chemical reaction form a chemical compound. All compounds are substances, but not all substances are compounds. A chemical compound can be either atom bonded together in molecules or crystals in which atoms, molecules or ions form a crystalline lattice.

Answer 2

Explanation:

Two or more elements combined into one substance through a chemical reaction form a chemical compound. ... A chemical compound is a pure substance made up of two distinct elements which are chemically combined. An example of a chemical compound is water (H2O), Oxygen and hydrogen commingle to make H2O.