Please help I’m timed !!! Determine the percent dissociation of a 0.18 M solution of hypochlorous acid, HClO. The Ka for the acid is

3.5 x 10-8

Оа

Oь

Ос

Od

7.9' 10-3 %

4.4'10-2%

6.3' 10-9%

3.5' 10-6 %

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.

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions