A substance is found to be reactive, flammable, soluble, and explosive. Which of these observations is a physical property?
A.
reactive
B.
explosive
C.
flammable
D.
soluble
Explanation: A physical property is a property that can be observed without a chemical reaction taking place. Solubility is a physical property because it does not involve a chemical reaction taking place since the substance that dissolves still remains the same substance.
