When you heated up the reactants before the reaction does it go faster or slower and why you think so.

h let me think

- "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)."

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

you didnt put any of the following