Question

Explain the difference between a physical and a chemical property. Give at least 2 examples of each type of property. Chemistry seeks to explain both the physical and chemical properties of matter.

Answer 1

Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.
`H_2+(1)/(2)O_2\rightarrow H_2O`

Example: 1. reactivity of substances

2. Toxicity of substances

Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
`H_2O(s)\rightarrow H_2O(l)`

Example: 1. Melting Point

2. Density