What chemical reaction does this equation represent?
2KCl + Pb(NO3)2 = 2KNO3 + PbCl2

A: Two molecules of potassium nitrate and one molecule of lead chloride react to form one molecule of lead nitrate and two molecules of potassium chloride.

B: One molecule of potassium nitrate and one molecule of lead chloride react to form one molecule of lead nitrate and one molecule of potassium chloride.

C: Two molecules of potassium chloride react with two molecules of lead nitrate to form one molecule of potassium nitrate and two molecules of lead chloride.

D: Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.

Question

31-10-2016
Chemistry

contestada

What chemical reaction does this equation represent?
2KCl + Pb(NO3)2 = 2KNO3 + PbCl2

A: Two molecules of potassium nitrate and one molecule of lead chloride react to form one molecule of lead nitrate and two molecules of potassium chloride.

B: One molecule of potassium nitrate and one molecule of lead chloride react to form one molecule of lead nitrate and one molecule of potassium chloride.

C: Two molecules of potassium chloride react with two molecules of lead nitrate to form one molecule of potassium nitrate and two molecules of lead chloride.

D: Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.

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Dejanras Dejanras · Answer 1 · 2018-10-21T10:37:46+02:00

Answer is: D: Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.

Balanced chemical reaction: 2KCl + Pb(NO₃)₂ → 2KNO₃ + PbCl₂.

According to principle of mass conservation, number of atoms must be equal on both side of balanced chemical reaction.

KCl - potassium chloride.

Pb(NO₃)₂ - lead nitrate.

KNO₃ - potassium nitrate.

PbCl₂ - lead chloride.