Completați spatiile libere a)[H3O+]= 10 la puterea -12 => pH=.......=> soluția ......... b) pH=5 => [H3O+].......=>solutia........... c) [H3O+]= 10 la puterea -7 => solutia .......=> pH= ........, va rooooggg rereeeepppeeeddee, dauuuu coooorrrrroooaaannna, urrrgggeent