Which combination will produce a precipitate? A) Naf (aq) and HCl (aq)
B) KOH (aq) and Mg(NO3)2 (aq)
C) NaOH (aq) and HCI (aq)
D) NaC2H302 (aq) and HCl (aq)
E) AgNO3(aq) and Ca(C2H302)2 (aq)

B

Explanation:

All acetates are soluble...

All halides are soluble EXCEPT for those of

A

g

X

,

H

g

2

X

2

,

and

,

P

b

X

2

...

All salts of the alkali metals are soluble

All hydroxides are INSOLUBLE except for those of the alkali metals...

For

option c

we are likely to observe a fine precipitate

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).