Dude look it up on google bc i think we dont know the answer and i bet you will get a better answer there
Answer: A change in appearance. (Please say thanks!)
Explanation:
The biggest sign of a chemical change is change in appearance.
Chemical equation:
Pb(NO3)2(aq) + 2NH4I(aq) -->PbI2(s) + 2NH4NO3(aq)
Precipitate:
PbI2 (because it's a yellow insoluble solid)
Complete Ionic Equation:
Pb(aq) + 2NO3(aq) + 2NH4(aq) + I2(aq) --> Pb(s) + I2(s) + 2NH4(aq) + 2NO3(aq)
Net ionic equation:
Pb(aq) + I2(aq) --> Pb(s) + I2(s)
Let me know if there are any errors. Goodluck :)
