What is the main difference between physical properties and chemical propertiesgive an example of each

Chemical properties are only observed during a chemical reaction and thus changing the substance's chemical composition. Perhaps the best way to distinguish between the two is by examples. Examples of physical properties would include freezing, melting, and boiling points, density, mass, and volume.

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

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.