Which three statements are true of the reactant Oxygen (O2) in the chemical equation above? Choose the 3 correct statements.
a
There are 2 molecules of oxygen in the above equation. Each molecule of oxygen has three oxygen atoms.
b
There are 3 molecules of oxygen in the above equation. Each molecule of oxygen has two oxygen atoms.
c
The 3 in 3O2 is a coefficient.
d
The 2 in 3O2 is a coefficient.
e
The 3 in 3O2 is a subscript.
f
The 2 in 3O2 is a subscript.
The three correct statements are:
a) There are 2 molecules of oxygen in the above equation. Each molecule of oxygen has three oxygen atoms. (This is true because O2 represents two oxygen molecules)
c) The 3 in 3O2 is a coefficient. (This is true because the coefficient tells us the number of molecules of a substance in the equation)
e) The 3 in 3O2 is a subscript. (This is true because the subscript tells us the number of atoms in a molecule of a substance)