Balancing Equations

Balancing EquationsBalanced EquationA chemical equation in which both sides have the SAME # of ATOMS

Remember from Dalton that mass must be conserved!Atoms are rearranged in a chemical reaction

Steps for Balancing Equations:Write skeleton equation

Use coefficents to balance the equation NEVER, EVER change subscripts.EVER!!!

Recheckshould be in lowest ratioDiatomic Atoms - HONClBrIFAtoms that covalently bond with themselves

You need to know these for balancing equations!

Example H2 + O2 H2O

# H:

# O:More Examples:AgNO3 + H2S Ag2S + HNO3

Zn(OH)2 + H3PO4 Zn3(PO4) 2 + H2O

hydrogen + sulfur hydrogen sulfide

iron (III) chloride + calcium hydroxide iron (III) hydroxide + calcium chloride