Answer
a. physical property
b. physical property
c. physical property
d. physical property
e. chemical property
f. chemical property
Work Step by Step
a. Density is a physical property.
b. Melting point is a physical property.
c. Conductivity is a physical property.
d. The softness or hardness of a substance is a physical property.
e. Tarnish is a chemical property because it is the reaction of a metal with the oxygen in the air.
f. Here we have a chemical reaction in which new substances are produced; therefore, reactivity is a chemical property.
