Balancing Chemical Equations

Matter is neither created or destroyed in a chemical change

Laws•In most of life, laws get

broken

•“Speed Limit is 25mph”

•People do go 26 though!

•Scientific Laws do not have exceptions

•Law: Conservation of mass / matter

•Matter is neither created or destroyed in a chemical change

Natural Laws

Zn + HCl --> ZnCl2 + H2

Am I

balance

d?

Balance me on

the board!

Zinc Hydrochloric Acid Zinc Chloride Hydrogen Gas

H2 + O2--> H2O

Am I

balance

d?

Balance me on

the board!

Hydrogen Gas Oxygen Gas Steam

H2O --> H2 + O2

water as fuel for vehicles?Am I

balance

d?

Balance me on

the board!

Water Hydrogen Oxygen

NaHCO3 + HC2H3O2 --> CO2 + H2O + NaC2H3O2

Am I

balance

d?Yes!!!

Baking Soda Vinegar Carbon Diox, water, white solid

Work in your groups•I think this is hard. Balance:

•Fe + S --> FeS

•H2 + Cl2 --> HCl

•I think I get this. Balance:

•Ca + H20 --> Ca(OH)2 + H2

•C2H6 + O2 --> CO2 + H2O