KauCl4 :
K = + 1
au = + 7
Cl = - 2
hope this helps!
The given question is incomplete. The complete question is :
In each row check off the boxes that apply to the underlined reactant. The underlined reactant acts as a... (check all that apply)
1. ![HCH_3CO_2(aq)+NH_3(aq)\rightarrow CH_3COO^-(aq)+NH_4^+(aq)](https://tex.z-dn.net/?f=HCH_3CO_2%28aq%29%2BNH_3%28aq%29%5Crightarrow%20CH_3COO%5E-%28aq%29%2BNH_4%5E%2B%28aq%29)
here underlined is ![HCH_3CO_2](https://tex.z-dn.net/?f=HCH_3CO_2)
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
2. ![BH_3(aq)+NH_3(aq)\rightarrow BH_3NH_3(aq)](https://tex.z-dn.net/?f=BH_3%28aq%29%2BNH_3%28aq%29%5Crightarrow%20BH_3NH_3%28aq%29)
Here underlined is ![NH_3](https://tex.z-dn.net/?f=NH_3)
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
3. ![HNO_2(aq)+C_2H_5NH_2(aq)\rightarrow NO_2^-(aq) + C_2H_5NH_3^+(aq)](https://tex.z-dn.net/?f=HNO_2%28aq%29%2BC_2H_5NH_2%28aq%29%5Crightarrow%20NO_2%5E-%28aq%29%20%2B%20C_2H_5NH_3%5E%2B%28aq%29)
Here underlined is ![C_2H_5NH_2](https://tex.z-dn.net/?f=C_2H_5NH_2)
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
Answer: 1. Brønsted-Lowry acid
2. Lewis base
3. Brønsted-Lowry base
Explanation:
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
1. ![HCH_3CO_2(aq)+NH_3(aq)\rightarrow CH_3CO^{2-}(aq)+NH_4^+aq)](https://tex.z-dn.net/?f=HCH_3CO_2%28aq%29%2BNH_3%28aq%29%5Crightarrow%20CH_3CO%5E%7B2-%7D%28aq%29%2BNH_4%5E%2Baq%29)
As
is donating a proton , it acts as a bronsted acid.
2. ![BH_3(aq)+NH_3(aq)\rightarrow BH_3NH_3(aq)](https://tex.z-dn.net/?f=BH_3%28aq%29%2BNH_3%28aq%29%5Crightarrow%20BH_3NH_3%28aq%29)
As
contains a lone pair of electron on nitrogen , it can easily donate electrons to
and act as lewi base.
3. ![HNO_2(aq)+C_2H_5NH_2(aq)\rightarrow NO_2^-(aq) + C_2H_5NH_3^+(aq)](https://tex.z-dn.net/?f=HNO_2%28aq%29%2BC_2H_5NH_2%28aq%29%5Crightarrow%20NO_2%5E-%28aq%29%20%2B%20C_2H_5NH_3%5E%2B%28aq%29)
As
is accepting a proton , it acts as a bronsted base.