Question

which two options describe physical properties of matter?
a. a substances ph
b. a substances ability to conduct electricity
c. a substances resistance to flow
d. whether a substance rusts
e. a substances inability to combine with other substances

Explanation:

Physical properties can be observed or measured without changing the substance's chemical identity. Conductivity and resistance to flow (viscosity) are physical properties. pH is a chemical property related to acidity - basicity, rusting is a chemical change, and inability to combine is a chemical property.

Answer:

B. A substance's ability to conduct electricity
C. A substance's resistance to flow