Which of the following is a characteristic of nonmetals?
a. nonmetals are often shiny and hard.
b. nonmetals are often malleable.
c. nonmetals do not conduct electricity.
d. nonmetals are often ductile.

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88