21 given the following acid dissociation constants, which acid has the strongest conjugate base? ch3cooh ka = 1.8 x 10-5 hcn ka = 6.2 x 10-10 hocl ka = 3.0 x 10-8 hio3 ka = 0.17 ch3cooh hocl hcn hio3

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.