Answer:
he difference between "2 O2" and "O2" lies in the interpretation of the numbers and the chemical formula.
"2 O2" represents two molecules of oxygen gas, O2. In this case, the number 2 preceding the chemical formula indicates that there are two individual O2 molecules present. Each O2 molecule consists of two oxygen atoms bonded together.
On the other hand, "O2" represents a single molecule of oxygen gas. It consists of two oxygen atoms bonded together.
To summarize:
"2 O2" refers to two individual molecules of oxygen gas.
"O2" refers to a single molecule of oxygen gas.
The presence or absence of the number 2 before the chemical formula determines whether it represents multiple molecules or a single molecule
Step-by-step explanation: