Question

Considering the following precipitation reaction, which substance has an incorrect state of matter label?

A) Pb(NO₃)₂(s)
B) 2KI(aq)
C) PbI₂(aq)
D) 2KNO₃(s)

Answer 1

The substance with an incorrect state of matter label in the given precipitation reaction is 2KNO₃(s). The correct labeling should be: Pb(NO₃)₂(aq), 2KI(aq), PbI₂(s), 2KNO₃(aq).

Step-by-step explanation:

The substance with an incorrect state of matter label in the given precipitation reaction is 2KNO₃(s).

In the reaction, 2KI(aq) + Pb(NO₃)₂(aq) → PbI₂(s) + 2KNO₃(aq), the product PbI₂ is a solid (s) and should be labeled as such. However, 2KNO₃ is labeled as a solid (s), which is incorrect.

The correct labeling should be:
A) Pb(NO₃)₂(aq)
B) 2KI(aq)
C) PbI₂(s)
D) 2KNO₃(aq)