1. WARM UP “When you’re thirsty it’s too late to think about digging a well.” –Japanese proverb 1.What does this quote mean to you? 2.How can you apply this to school?

2. Chemical Formulas

3. Symbols Elements Subscripts – Follow element – Show number of atoms needed for compounds

4. Conversions Formulas written in atoms or moles – Ex: C 6 H 12 O 6 has… 1 molecule has 6 atoms C, 12 atoms H, 6 atoms O 1 mole has 6 moles C, 12 moles H, 6 moles O – 3.32 mol C 6 H 12 O 6 x 12 mol H 11 mol C 6 H 12 O 6 Conversions continue to atoms, grams, etc.

5. WRAP UP How many Cl atoms are in 4.9 moles of CCl 4 ? How many grams of H are in 284.9 g of glucose (C 6 H 12 O 6 )?