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Warm up

Warm up. Use the colored atoms you made the other day to see if this is a balanced equation MnO = Mn + O 2. Warm up answers. 2 Mn 2 O = 4 Mn + 1O 2. Correctly multiplying. H 2 O = 2 Hydrogens , 1 Oxygen 2 H 2 O = 4 Hydrogens , 2 Oxygens (OH) 2 = 2 Oxygens , 2 Hydrogens.

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Warm up

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  1. Warm up • Use the colored atoms you made the other day to see if this is a balanced equation • MnO= Mn+ O2

  2. Warm up answers • 2 Mn2O= 4 Mn+ 1O2

  3. Correctly multiplying • H2O = 2 Hydrogens, 1 Oxygen • 2 H2O = 4 Hydrogens, 2 Oxygens • (OH)2 = 2 Oxygens, 2 Hydrogens

  4. Todays activities • Folder check – all warm ups, notes, cool downs and worksheets from 04-11-14 through 04-30-14 • Quiz #2 on balancing chemical equations

  5. Cool down • Is this a balanced chemical equation? If not, rewrite it so it is balanced • 2Ca + Br2= CaBr3

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