DAILY QUESTION October 31, 2008 Write down an example of a balanced chemical equation.

Agenda 10/31/08 Daily Question “Code Orange” Turn in Daily Questions “Code Orange” Check-in: Lab Worksheet and 6-1 and 6-2 Worksheets Ch 6 Sect 3 Notes Balancing Chemical Equations Assignments: 1. Balancing Chemical Equations Worksheet due 11/3

Chemical Equation A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products CH4 + O2 → CO2 + H2O

Balanced Chemical Equations The number of atoms of each element on the right hand side of the equation matches the number of the atoms of each element on the left side. Standard way of writing equations Follows the Law of Conservation of Mass

How-To Balance Chemical Equations Leave the Subscripts alone! Only put coefficients in front of the chemical formulas Trial and Error Process

Practice Balancing Chemical Equations CH4 + O2 → CO2 + H2O

Information from a Balanced Chemical Equation Know the substances in the reaction Know the amount involved