Mis on tugev hape?

(a)  

Nõrk hape on

(a)  

Hapnikhapped

(a)  

Orgaaniline hape

(a)  

Orgaaniline aine

(a)  

Organismis leiduvad happed

(a)  

Happed on vajalikud

(a)  

Kas väävelhape on

(a)  

Happeid kasutatakse

(a)