Luster, conductivity, and malleability are physical properties of metals. What makes these properties different from chemical properties? A. Physical properties relate to elements rather than compounds.

B. Physical properties appear only after a chemical change occurs.

C. Physical properties can be observed without attempting to change the identity of the substance.

D. Physical properties describe elements in the solid state rather than in the liquid or gas state.

C

Explanation:

A Is false because physical properties can relate to any chemical substance.

B Is false because physical properties are apparent wether a chemical change has occurred or not.

C Is correct because physical properties can be observed without making a chemical change to the substance, chemical properties cause physical properties but a chemical change is not needed to observe a physical property.

D Physical properties describe compounds in all phases of matter.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.