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Salty Eights

Salty Eights. Formulas for Ionic Compounds. Chem catalyst. List the ionic compounds you can make with pairs of cards using two different elements. List the ionic comounds you can make with 3 cards and only 2 different elements. What rule must all these comounds satisfy?.

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Salty Eights

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  1. Salty Eights • Formulas for Ionic Compounds

  2. Chem catalyst • List the ionic compounds you can make with pairs of cards using two different elements. • List the ionic comounds you can make with 3 cards and only 2 different elements. • What rule must all these comounds satisfy? • Using the cards below from the Salty Eights deck:

  3. Naming Ionic CompoundsWith two elements To name an ionic compound with one metal & one non-metal, use the element name for the metal, then change the nonmetal ending to “-ide” • Magnesium • Mg2+ Chlorine Cl- + Magnesium Chloride MgCl2

  4. Teams play salty eights • Why is it called “Salty Eights”? • Game rules & scoring on 2 cards. • Score Sheets • Write your compounds and keep your own score. • Say the compounds out loud to your team when you lay them down.

  5. Discussion • How did you create compounds in the game? • What was difficult in writing formulas or names? • Give examles of some of the more comlex compounds. • Which compound had the highest point value? • Why don’t the noble gases form compounds?

  6. Check-in • Which of these compounds are likely to form? • a) Na2S b) K2Mg c) AlBr2 d) Na3N e)OCl f) CaO • For each compound that dosn’t work, explain the problem or how to fix it.

  7. Homework • Read Lesson 21, Salty Eights: pages 107-110. • Do questions 1-8

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