According to the acid radical, it can be divided into (1) oxyacid (HNO3. H2SO4, etc. ) and (2) anaerobic acid (HCL. Hey, wait. ).

According to the ionized H+ number, it can be divided into (1) monoacid (HCL. Hey, wait. ) (2) Diatomic acid (H2SO4. H2CO3, etc. ) and (3) polybasic acids (H3P04, etc. ).

Strong acid (HCL) showing strength (1). H2SO4, etc. ) (2) Weak acid (H2CO3, etc. )

alkali

According to the strength (1), strong alkali (NAOH. KOH, etc. ) (2) weak base (FE(OH)3, etc. )

According to the ionization OH- number (1), monobasic (NAOH. KOH, etc. ), binary alkali (Ba (OH) 2, Ca (OH) 2, etc. ) and polybasic alkali (Fe(OH)3, etc. ).

salt

(1) salt (Na2CO3. Na2SO4, etc. ) (2) acid salt (nah co 3. NaHSO4 and so on. (3) Basic salts (Cu2(OH)2CO3, etc.