28 What is the concentration of hydrogen ions [H+] in a solution that has a pH of 4.32? (1 Point) a. 4.8 x 10-5M b. 6.2 x 10-4M C. 5.1 x 10-4M d. 8.6 x 10-5M​

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?

Is it safe to take 450mg of diphenhydramine hydrochloride?

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?