Question

What is the substance that enters into a chemical reaction called?

Answer 1

`"A reactant.........?"`

Explanation:

And a chemical equation is represented by a chemical equation:

`"Reactants"` `rarr` `"Products"`

And all chemical reactions observe stoichiometry:

`"MASS is CONSERVED"`

`"CHARGE is CONSERVED"`

And so if you start with `10*g` or `1000*g` of neutral reactant, you will finish with `10*g` or `1000*g` of neutral product. And this principle has been observed in EACH and EVERY chemical process ever performed or observed.