Identify each of the following as an example of a physical property or a chemical property.

Silver tarnishes when it comes in contact with hydrogen sulfide in the air.
A banana is yellow.
A sheet of copper can be pounded into a bowl.
Barium melts at 725℃.
A diamond is the hardest natural substance.
A bar of lead is more easily bent than is a bar of aluminum of the same size.
An apple will turn brown if left in oxygen.
Acid in tomato sauce can corrode (break down) aluminum foil.
Rocks containing carbonates can be identified because they fizz when hydrochloric acid is applied.
Gasoline is flammable. ______________
A piece of charcoal, which is mostly the substance carbon, glows red, gives off heat, and becomes a gray ash. ________________
Helium does not react with any other element. ________________
Diamond dust can be used to cut or grid most other materials. ____________________
Vinegar is added to baking soda and bubbles are produced. ____________________
Water boils at 100℃. ________________