For each of the acid or base below • Write the chemical equation and identify the acid, base, conjugate acid and conjugate base
• the Ka or Kb expression for each acid or base in water
a. Hydrofluoric acid, HF (aq)
b. Sulfate ion, SO4 2- (aq)

In an energy pyramid, which level has the most available energy?

Define dew point. i am writing this part to be able to ask the question

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.