Help fast please it's timed

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder