Write the conjugate acids for the Bronsted bases :`NH_(2)^(-),NH_(3) and HCOO^(-)`

Explanation

Conjugate acid = Bronsted base + `H^(+)`
`:.` Conjugate acids of `NH_(2)^(-), NH_(3) and HCO O^(-) ` will be `NH_(3), NH_(4)^(+)` and HCOOH respectively.