Answers
MnSO4 + H2O 
Mn(OH)2 + H2SO4
MnSO4 is a salt of strong acid and weak base. Solubility sulphuric acid in water is more than manganese hydroxide. Hence concentration of Hydronium ion will be more than hydroxide ion. As a result Manganese sulphate in water it will act as a acidic salt.
RbNO3 in water dissociates into strong base Rb(OH)2 and strong acid HNO3. Therefore its aquoeus solution is neutral.
NaHCO3 is acidic in water, it disociates into Na2CO3 and Hydronium ion.
NaHCO3 + H2O Na2CO3 + H3O+
NH4OOCCH3 is salt of weak base NH4OH and weak acid
CH3COOH.
In water the concentration of hydronium ion and hyfroxide ion will be nearly equal. Hence the salt is neutral in water.
MnSO_4 + H_2O rightarrow Mn(OH)_2 + H_2SO_4 MnSO4�is a salt of strong acid and weak base. Solubility sulphuric acid in water is more than manganese hydroxide. Hence concentration of Hydronium ion will be more than hydroxide ion. As a result Manganese sulphate in water it will act as a acidic salt.
.
RbNO_3�in water dissociates into strong base Rb(OH)_2�and strong acid HNO_3. Therefore its aquoeus�solution is neutral. NaHCO_3�is acidic in water, it disociates into Na_2CO_3�and Hydronium ion. NaHCO_3�+ H_2O rightarrow Na_2CO_3 + H_3O^+ NH_4OOCCH_3�is salt of weak base NH_4OH and weak acid CH_3COOH. In water the concentration of hydronium ion and hyfroxide ion will be nearly equal.
Hence the�salt is neutral in water.
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