Which of the following is not a characteristic of electromagnetic waves?

a.) they can be refracted

b.) they can travel through a vacuum.

c.) they can travel at various speeds through any one material.

d.) they can be reflected.

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2