Question

An aqueous solution of Mg (NO3)2 and NaOH generates the solid precipitate Mg(OH)2. Which of

the following would NOT appear in the corresponding net ionic reaction?
A) Mg²+
B) NO,
C) OH-
D) Mg (OH)2
E) Both (A) and (C)

Answer 1

The net ionic reaction for the formation of solid precipitate Mg(OH)2 does not include NO3- ions and Na+ ions.

Step-by-step explanation:

The net ionic reaction for the formation of the solid precipitate Mg(OH)2 from an aqueous solution of Mg(NO3)2 and NaOH would be:

Mg2+(aq) + 2OH-(aq) -> Mg(OH)2(s)

In this reaction, only the Mg2+ ions and OH- ions participate. The NO3- ions from Mg(NO3)2 and the Na+ ions from NaOH do not appear in the net ionic equation because they do not undergo any chemical change.

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