Which of the following reactions best describes the acid-base properties of ammo

Question

Which of the following reactions best describes the acid-base properties of ammonia (NH_4) in aqueous solution? NH_3(aq) + H_2O(l) NH_4^+(aq) + OH^-(aq) NH_3(aq) + 3H_2O(l) N^3-(aq) + 3H_2O^+(aq) NH_3(aq) + 3H_2O(l) N (aq) + 3H_2O (aq) NH_3(aq) rightarrow N (aq) + 3H^+ (aq) What is the net ionic equations for the complete neutralization of phosphoric acid with potassium hydroxide? H^+(aq) + OH^-(aq) rightarrow H_2O(l) H_3PO_4(aq) + 3OH^-(aq) rightarrow 3H_2O(l) + PO_4^3-(aq) H_3PO_4(aq) + 3KOH(aq) rightarrow 3H_2O(l) + K_3PO_4(aq) 3H^+(aq) + 3KOH(aq) rightarrow 3H_2O(l) + 3K^+ (aq) H_3P(aq) + 3KOH(aq) rightarrow 3H_2O(l) + K_3P(aq) What is the net ionic equation for the reaction that occurs between nitrous acid and calcium hydroxide? 2H^+ (aq) + 2NO_2^-(aq) + Ca^2+(aq) + 2OH^-(aq) rightarrow Ca(NO_2)_2(aq) + H_2O(l) HNO_2(aq) + OH^-(aq) rightarrow NO_2^-(aq) + H_3O(l) 2H^+(aq) + 2NO_2^-(aq) + Ca^2+(aq) rightarrow Ca^2+ (aq) + 2NO_2^-(aq) + 2H_2O(l) H^+(aq) + OH^-(aq) rightarrow H_2O(l) In the reaction of acetic acid with aqueous cesium hydroxide, what is the spectator ion? OH^-(aq) Cs^+(aq) There is no spectator ion. C_2H_3O_2^-(aq) H^+(aq) In basic solution the chromate ion, CrO_4^2-, can be converted to the chromite, CrO_2^-, ion. The number of electrons gained or lost by the chromium atom is 2 electrons gained. 2 electrons lost. 0. 3 electrons gained. 3 electrons lost.

Explanation / Answer

21)
NH3 is base. Upon reation with water, it should give OH-
Also since it is weak base, reaction will never be complete. Hence double headed arrow should be used
Answer: 1st option

22)
net ionic reaction in acid base reaction is always
H+ + OH- ----> H2O
Answer: 1st option

I am allowed to answer only 1 question at a time

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