How does a balanced chemical equation represent the conservation of matter in a chemical reaction?
A. The type of matter in the products is different from the type of
matter in the reactants.
B. There are fewer atoms in the reactants than in the products,
O C. The number of atoms of each element in the reactants equals
the number of atoms of each element in the products.
D. There are more atoms in the reactants than in the products

I don't know but I'm curious

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

idk what the question is about