Which of these you understand what people are saying to you?

a. looking away while they're speaking
b. thinking about what they're saying
c. thinking about how you'll respond
d. interrupting them

- "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)."