Isaac pours water into one container and liquid acetone into another.
He seals both containers. He measures the
gas pressure above both liquids. At the same
temperature, the pressure of the acetone gas
is higher than the pressure of water vapor.
Which liquid requires more thermal energy to
change from a liquid to a gas? Explain

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

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c. electrical charges of ionic bonds.