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Counting Atoms  Day 2a
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Counting Atoms Day 2a

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  • 1. You Will Need: 1. 2nd page of Counting Atoms + Density Review - Bookshelf 2. STAR CARDS #31-60 – Due at the beginnig of the period on Friday 3. Log #3 – Update with points Remember you have new SEATS!!!!!
  • 2. You Will Need: 1. STAR CARDS #31-60 – Due at the beginnig of the period on Friday 2. Quiz on Cards 31-60 only on Friday – Final Quiz will be cumulative 3. Log #3 – Update with points
  • 3. As you look over these compounds you may observe that many of them contain similar _________ of elements. Since we are a ______________ based environment, carbon is found in all living organisms. The elements in the Human Body can be broken down to include the main elements of Hydrogen, Oxygen, Nitrogen, Carbon and representatives from about 20 other elements. atoms carbon
  • 4. The _________ main elements that make up most living organisms are Carbon, ________________, Sulfur, __________________, Oxygen and _____________. Phosphorus SIX Hydrogen Nitrogen
  • 5. Practice and Review Mass Unit Label = ___________ Volume Unit Label = _______, ________, ________ Density Unit Label = __________, __________, __________ Gram cm3 mL cc g/cm3 g/mL g/cc
  • 6. Density Formulas 1)There are 3 versions of the Density formula: D=m/v v= m/D m= v x D
  • 7. 1. None 2. Enjoy your Spring Break!