review: writing and naming compounds, balancing equations, element symbols
DESCRIPTION
REVIEW: WRITING AND NAMING COMPOUNDS, BALANCING EQUATIONS, ELEMENT SYMBOLS. Ionic, covalent, or acid ?. Copper (II) hydroxide Ionic HCl Acid Dinitrogen pentoxide Covalent Sodium chloride Ionic. H 2 SO 4 Acid Calcium hydroxide Ionic Carbon dioxide Covalent P 2 S 5 Covalent - PowerPoint PPT PresentationTRANSCRIPT
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Copper (II) hydroxide Ionic HCl Acid Dinitrogen pentoxide Covalent Sodium chloride Ionic
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H2SO4
Acid Calcium hydroxide Ionic Carbon dioxide Covalent P2S5
Covalent Silver iodide Ionic
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Pb Lead Ca Calcium F Fluorine Hg Mercury
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Au Gold Cu Copper Mg Magnesium Mn Manganese Fe Iron
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When writing the formula for an ionic compound, the _____ is always written first.
Cation (metal) Metals always ___ ____ electrons. Give away What is the ionic symbol for lithium? Li+1
What is the ionic symbol for sulfur? S-2
What is the ionic symbol for hydroxide? OH-1
What is the ionic symbol for ammonium?
NH4+1
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Covalent compounds are always between 2 _____.
Nonmetals Naming covalent compounds
includes using ___ before the element name.
Prefixes What is the prefix for 1? Mono What is the prefix for 8? Octa What is the prefix for 5? 3? Penta, tri
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Calcium sulfate Ca+2 So4-2 = CaSO4 Potassium phosphate K+1 PO4-3 = K3PO4 Iron (II) chloride Fe+2 Cl-1 = FeCl2 lead (IV) hydroxide Pb+4 OH-1 = Pb(OH)4 Remember, the Roman numeral tells
you the positive charge for the metal!
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Potassium chloride K+1 Cl-1 = KCl Magnesium fluoride Mg+2 F-1 = MgF2 Ammonium oxide NH4+1 O-2 = (NH4)2O
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S2O4 Disulfur tetroxide MgI2 Magnesium iodide AlBr3 Aluminum bromide CrCl3 Chromium (III) chloride NaOH Sodium hydroxide CaSO4 Calcium sulfate
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The law of conservation of mass and matter says matter cannot be created or destroyed!
All chemical equations must, therefore, be balanced!
Look at this formula: Pb(OH)4 There are ____ lead atoms, ____ oxygen
atoms and ____ hydrogen atoms 1, 4,4 The formula Fe2(SO4)3 contains ____ Fe
atoms, ___ S atoms and ___ O atoms 2, 3, 12
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___ H2 + ___ O2 → ___ H2O 2,1,2
___ N2 +___ H2 → ___ NH3
1,3,2
____Zn + ____ HCl → ___ ZnCl2 + ___ H2
1,2,1,1
___ Fe + ___ O2 → ___ Fe2O3
4,3,2
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THAT’S ALL FOR THE REVIEW!!
AS ALWAYS, COME SEE ME IF YOU NEED SOME EXTRA HELP!!