A chemist is given an unknown gas sample. Which observation describes a chemical property of the sample?
A) It extinguishes a glowing splint.
B) It has a sharp, stinging odor.
C) It is colorless.
D) Its density is greater than that of air.
E) It weighs 11.2 grams.
Question 2
Rb2S is named
A) rubidium disulfide.
B) rubidium sulfide.
C) rubidium(II) sulfide.
D) rubidium sulfur.