A 10 gram sample of methane (CHA) has the same number of molecules as a 10 gram sample of O2
O True
O False

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."