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

Jul 18, 2017

$\text{A reactant.........?}$

#### Explanation:

And a chemical equation is represented by a chemical equation:

$\text{Reactants}$ $\rightarrow$ $\text{Products}$

And all chemical reactions observe stoichiometry:

$\text{MASS is CONSERVED}$

$\text{CHARGE is CONSERVED}$

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