You are given samples of the substances shown in the table. the samples are labeled a, b, and c. at room temperature, sample a is a solid, sample b is a liquid, and sample c is a gas. what are the identeties of samples a, b, and c?

Sample A is either a metalloid or metal because metalloids and metals are always solid at room temperature.

Sample B is a nonmetal because nonmetals can be solid, liquid, or gas at room temperature. Also, a metal or metalloid would be solid at room temperature, so sample B has to be a nonmetal.

Sample C is also a nonmetal for the same reason as sample B.