Chemistry 1 Worksheet PDF

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Taken from Chemistry: The Central Science...

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Reference Sheet – Chemistry 1

Solubility Rules – NAGSAG Mnemonic Acrostic – all of the following letters represent SOLUBLE molecules (everything else is insoluble by elimination)  Doesn’t include ALL solubility rules, but covers a lot of them – a common mnemonic used N = Nitrates e.g. NO3+ A = Acetates e.g. CH3COOG = GROUP 1 ALKALI METALS e.g. Li+, Na+, etc. S = SULFATES e.g. SO4-2 A = AMMONIUM IONS e.g. NH4+ G = GROUP 17 NONMETALS e.g. F-, Cl-, Br-, I-, etc. Exception Rules – PMS / Castro Bear Mnemonics P = Pb+2 (lead) M = Mercury (Hg2+2) S = Silver (Ag+) >> These 3 ions are never soluble with the sulfate group or group 17 nonmetals Exception Rules - Castro Bear: Ca = Calcium (Ca2+) Stro = Strontium (Sr+2) Bear = Barium (Ba+2) >> Stands for three ions: Calcium, Strontium and Barium. These three ions are never soluble with sulfates

Chapter 4.? – Ionic Equations

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