Question

balanced the equation Pb(NO3)2 + K2CO3 →
balanced the equation AgClO3 + SrI2 →
balanced the equation C7H8 + O2 →

Answer 1

Write down the number of atoms that you have on each side of the equation.
\[Pb(NO3)2 + K2CO3 \rightarrow KNO3+PbCO3 \]
Left side: 1 Pb, 2 N, 9 O and 2 K
Right side: 1 Pb, 1 N, 6 O and 1 K
Add a coeffcient of 2 on the right side to KNO3
\[Pb(NO3)2 + K2CO3 \rightarrow 2KNO3+PbCO3 \]
Left side: 1 Pb, 2 N, 9 O and 2 K
Right side: 1 Pb, 2 N, 9 and 2 K
Its balanced now!