Answer:
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of a substance.
A chemical property describes the ability of a substance to undergo a specific chemical change and form new substances.
Step-by-step explanation:
To know which one is which, just REMEMBER physical property can be observed without changing the original substance, while chemical properties require a change in the original substance, which occurs when the new subtance is formed after undergoing the chemical reaction.