Answer: Neon is a colorless gas at room temperature: Physical property
At room temperature, mercury is a liquid: Physical property
Apple slices turn brown when exposed to air: Chemical property
Phosphorus will ignite when exposed to air: Chemical property
Explanation:
Physical property is defined as the property of a substance which becomes evident during physical change in which there is alteration in shape, size etc. No new substance gets formed during physical change.
Example: Neon is a colorless gas at room temperature
At room temperature, mercury is a liquid.
Chemical property is defined as the property of a substance which becomes evident during chemical change in which a change in chemical composition takes place. A new substance is formed in these reactions.
Example: Apple slices turn brown when exposed to air: It undergoes oxidation which is a chemical change
Phosphorus will ignite when exposed to air: It undergoes oxidation which is a chemical change
Physical and chemical property are distinguished based on the fact that one alters the composition of a substance when observed while the other does not.
A chemical property is any property that can only be studied by altering the composition of the substance in a chemical reaction. Physical properties can be observed without altering the composition of the substance.
Below, the phenomena indicated in the question are classified as physical/chemical property:
Learn more about chemical property:https://brainly.com/question/1728902
