Can some help me with this?!
Really Failing in this subject!!

6. The log or sticks  is seen as stored potential energy (in the form of chemical energy). Stored potential energy is released by burning the log. The chemical reaction which comes from burning the log is called combustion. Combustion can only happen if oxygen is present. Combustion changes the potential chemical energy into kinetic energy in the form of heat.

7. Hair dryers use three different types of energy to work: Electrical energy, heat energy, and mechanical energy.

8. electrical energy - mechanical energy

9. electrical energy - thermal energy

10. electrical energy - sound energy

Explanation:

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

your answer would be “dry”