Katrina tried to take pictures with her cell phone but discovered that its battery was dead. What happened to the battery? Only chemical energy remained stored in the battery.

All its stored energy had been destroyed.

Kinetic energy had been changed into potential energy.

All the energy stored in the battery had been transformed.

All the energy stored in the battery had been transformed.

Explanation:

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I also agree

All the energy stored in the battery had been transformed.

answer; i believe that the correct answer is (a); a large rock being weathered by wind and rain;

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