Question

What do we call the number that appears in front of reagents and products in the stoichiometric equation?

Answer 1

`"The stoichiometric coefficient..........."`

Explanation:

The combustion reaction of methane displays several such stoichiometric coeffiecients:

`CH_4(g) + 2O_2(g) rarr CO_2(g) + 2H_2O(l)+Delta`

And thus, from left to right, we have the `"stoichiometric coefficients"`, `1:2:1:2`.....................