Question

A double replacement reaction occurs when aqueous potassium iodide and aqueous mercury (I) nitrate are mixed. What is the correct balanced chemical equation for this reaction? (1 point)

KI(aq) + HgNO3 (aq) yields KHg(aq) + INO3(s)
KI(aq) + HgINO3 (aq) yields KNO3 (aq) + Hg(s)
KI2 (aq) + HgNO3 (aq) yields KNO3 (aq) + HgI2 (s)
KI(aq) + Hg2NO3 (aq) yields KNO3(aq) + Hg2I(s)

Answer 1

i think it is the third option

Answer 2

@taramgrant0543664 :)

Answer 3

I feel like it should be this but its not one of your options:
KI(aq) + HgNO3(aq) → KNO3(aq) + HgI(s)
But it could be option two if you just have the I in the wrong spot for some reason

Answer 4

hmm. i'm confused on this one

Answer 5

K has a charge of +1, I has a charge of -1, Hg will have a charge of +1 as it specified it in the question and NO3 has a charge of -1. So there should be no 2s involved anywhere in the formula K can't bond with Hg and NO3 can't bond with I

Answer 6

is the first option possible?

Answer 7

KHg i dont think exist

Answer 8

I searched it up to see if someone else has ever asked this question on anything and they answered with the first one but I really don't think thats right K and Hg don't bond normally and NO3 and I don't normally bond either

Answer 9

i think i should go with the third one

Answer 10

I eliminated a and b out

Answer 11

C makes the most sense. The true answer isnt here tho.

Answer 12

Ya what @sweetburger says makes sense even though overall it doesn't make sense either lol

Answer 13

Lol thanks you guys! :) :DD