A substance is a chemical combination.
The combination is known as a chemical formula.
An oxide.
Chemical Formula
as you no chemical is the combination of two or more substance that is chemical energy is a energy found when there is chemical reaction
A very short answer: a chemical (chemical compound, substance) is a combination of two or more chemical elements.
A chemical compound .
A shorthand representation of the composition of a substance using atomic symbols and numerical subscripts is called a chemical formula.
The product is called a Compound
The substance formed by the chemical combination of two or more elements is a compound.
When one substance or combination of substances undergo change to become another substance or substances
Chemical reaction
mixture