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Turn in Lab

Turn in Lab. Agenda. AQOD. How many oxygen atoms are in the following compound?. Balancing Reactions Notes Practice HW: Finish Worksheet, 7.2 Reading Guide. Turn in Lab. Agenda (5 th hour). AQOD. How many oxygen atoms are in the following compound?.

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Turn in Lab

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  1. Turn in Lab Agenda AQOD How many oxygen atoms are in the following compound? • Balancing Reactions • Notes • Practice • HW: Finish Worksheet, 7.2 Reading Guide

  2. Turn in Lab Agenda (5th hour) AQOD How many oxygen atoms are in the following compound? • 7.2 Reading Guide on Balancing Reactions • 7.2 Worksheet • HW: Finish worksheet

  3. Conservation of Mass • http://www.youtube.com/watch?v=J5hM1DxaPLw • http://www.youtube.com/watch?v=dExpJAECSL8

  4. Practice Counting Atoms • How many sulfur atoms? • How many oxygen atoms?

  5. Practice Counting Atoms • How many calcium atoms? • How many nitrogen atoms?

  6. Practice Counting Atoms • How many carbon atoms? • How many oxygen atoms? • How many lead atoms?

  7. Box Method - Steps • Look at the first item in the equation • Write down the symbols of each element present the number of times it appears in the formula • Put a box around it • Repeat for each item in the equation • Check if mass is conserved • Add boxes until there are the same number of each atom on each side

  8. Line Method - Steps • 1. List out the atoms • 2. Count the number of each type of atom in the reactant • 3. Count the number of each type of atom in the product • 4. Note which atoms are not balanced • 5. Select one atom to balance • 6. Update the atom counts • 7. Repeat steps 4-6 until all are balanced

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