Ammonium and chlorine 3 cards of nh 4 3 cards of cl

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1.Ammonium and chlorine _ 3 _ card(s) of (NH 4 ) _ 3 _card(s) of Cl (NH 4 ) 3 _Cl_ 3 _ Ammonium chlorine 1. Ammonium and sulfur _ 3_ card(s) of (NH 4 ) _ 2 _card(s) of S (NH 4 ) 3 _S_ 2 _ Ammonium sulfur 1. Aluminum and carbonate _ 2 _card(s) of Al _ 3 _ card(s) of (CO 3 ) Al 2 CO 3 ) 3 _ Aluminum carbonate 1. Calcium and carbonate _ 2 _ card(s) of Ca Ca_ 2 _(CO 3 ) 3 _ Calcium 6
_ 3 _ card(s) of (CO 3 ) carbonate 1.Hydrogen and carbonate _ 1 _ card(s) of H _3 _card(s) of (CO 3 ) H_ 1 _(CO 3 )_ 3 Hydrogen carbonate 1. Ammonium and hydroxide _ 3 _ card(s) of (NH 4 ) _ 3 _ card(s) of (OH) (NH 4 )_ 3 _(OH)_ 3 Ammonium hydroxide Worksheet #3 1. Describe what you see regarding the charges in your rectangles that include polyatomic ions. The number of atoms gain and loses 6. Make a rule regarding polyatomic ions in chemical formulas and charges? Write the symbols with positive charge valency first, write the valency of each atom on the top of its symbols, divide the valency number by their highest common factor ignore the positive or negative. 7
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Work Sheet No. 4 Counting Atoms in Formulas with Polyatomic Ions Directions: Use your Ionic compound maker kit to construct the molecules from the elements and polyatomic ions you are asked to use. Use the cards to count the atoms of each separate element including those elements which make up the polyatomic ions. Compound Made of: Cards of Each: Formula: Number of Atoms: Name -look at your examples from worksheet #1 and #3 1. Magnesium and nitrate 1 Mg 2 (NO 3 ) Mg(NO 3 ) 2 1 Mg 2 N 6 O Magnesium nitrate 2. Calcium and sulfate _ 3_ Ca _ 3_ (SO 4 ) Ca_ 3 _(SO 4 )_ 3 _ _1_ Ca _1_ S _4 _O Calcium sulfate 3. Ammonium and chlorine _ 3 _(NH 4 ) _ 3 _Cl (NH 4 )_ 3 _Cl_ 3 _ 3_ N 12_ H 3_ Cl Ammonium chlorine 4. Magnesium and hydroxide _ 2 _Mg _ 3 _(OH) Mg_ 2 _(OH)_ 3 _ 2_ Mg 3_ O _3 H Magnesium hydroxide 5. Hydrogen and sulfate _ 1 _H _ 3 _(SO 4 ) H_ 1 _(SO 4 )_ 3 _ 1_ H 3_ S 12_ O Hydrogen sulfate 6. Aluminum and Nitrate _ 2_ Al _ 3 _(NO 3 ) Al_ 2 _(NO 3 )_ 3 _ 2_ Al 9_ N 9_ O Aluminum nitrate 7. Magnesium and phosphate _ 2 _Mg _ 2 _(PO 4 ) Mg_ 2 _(PO 4 )_ 2 _ 2_ Mg 2_ P 8_ O Magnesium phosphate 8. Aluminum and sulfate _ 2 _Al _ 3 _(SO 4 ) Al_ 2 _(SO 4 )_ 3 _ 2_ Al 9_ S 12_ O Aluminum sulfate 9. Ammonium and phosphate _ 3 _(NH 4 ) _ 2 _(PO 4 ) (NH 4 )_ 3 _(PO 4 )_ 2 _ 9_ N 12_ H 4_ P 8_ O Ammonium phosphate Worksheet #4 7. When is it necessary to use parenthesis in writing chemical formulas?

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