Balancing+Chemical+Equations

Name: Date: STEM Middle Academy – 8th Grade Science – Mr. Condon Block: Balancing Chemical Equations
 * 1) Coefficients tell a chemist the number of  used in a chemical reaction.
 * 2) Subscripts tell the chemist

Use Coefficients and subscripts to determine the products of the following chemical reagents and balance the number of atoms of each element on each side of the equation.

Example: Fe2O3 + 3 CO 2Fe + 3 CO2 Notice how the same number of atoms of each element are shown on each side of the equation.

KI + H2O2 K O H + I2

CuO + H2SO4 Cu S O3 + H O

H2SO4 + HI H S O3 + H 2O + I2

ZnCl2 + KCN K Cl + Zn( C N) 2

Pb(OH)2 + KOH K2 Pb O2 + H 2 O