In a chemical equation, the arrow
A. can be read as "yields" or "makes."
B. always points toward the products.
C. separates the products and reactants.
D. all of these
all of these options are right.
2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O
2.35 mol C2H2 - x mol O2
2 mol C2H2 - 5 mol O2

answer: 5.875 mol
Explanation:
The states may differ depending on the reactions