At STP
1L O₂ → 2L CO₂
xL O₂ → 5.0L CO₂
x=2.5 L
Answer:
B .it is an exothermic reaction
Explanation:
i need brainleyest
Use the periodic table , it should be the long decimal if u look it up
"There are three rules on determining how many significant figures are in a number: Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant."
