Question

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1".

KI + Pb(NO3)2 → PbI2 + KNO3

Answer 1

the answer is 2,1,1,2

Step-by-step explanation:

hope this helped!

Answer 2

Answer : To balance a chemical equation you need to find the same number of molecules on both the sides of the reaction.

Here in the reaction ;


`KI + Pb (NO_(3))_(2)----\ \textgreater \ Pb I_(2) + KNO_(3)`

here we can see that I is not balanced so we need to balance that,
also nitrate is unbalanced we need to work on that as well.

so on solving we get,

`2KI + Pb (NO_(3))_(2)----\ \textgreater \ Pb I_(2) + 2KNO_(3)`