A whole number, not a fraction, that can be negative, positive or zero are integers. They cannot have decimal places.
Now, converting 0.000431 L to decimal an integer as:

Since, 
So,
.
Hence, the integer value for 0.000431 L is
.
Two types of stoichiometry are; molar mass and coefficients from balanced equation.
Answer:
carbon
Explanation:
because it is an allotrope of carbon