The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C.It is a weak conductor of electricity,its density is 2.3 grams per cubic centimeter and it easily forms silicon dioxide when exposed to air.Which of the following is a chemical property of silicon?
A)its ability to conduct electricity
B)its density
C)its melting point
D)its ability to react with oxygen
E)C and D

Question

Quizplus · Accepted Answer

The ability of silicon to react with oxygen and form silicon dioxide is a chemical property as it involves a change in the composition of the substance. The other options are physical properties as they do not involve a change in composition.

The Element Silicon Has a Melting Point of 1,410°C and a Boiling