Unit 3 study guide
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Unit 3 Study Guide. Ionic – between metal and nonmetal and transfers electrons Covalent – between two nonmetals and shared electrons. It fulfills the octet rule. All elements with 8 outer electrons. In an ionic bond, metals lose electrons while nonmetals gain electrons.

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Unit 3 Study Guide

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Unit 3 study guide

Unit 3 Study Guide


Unit 3 study guide

  • Ionic – between metal and nonmetal and transfers electrons

  • Covalent – between two nonmetals and shared electrons


Unit 3 study guide

  • It fulfills the octet rule. All elements with 8 outer electrons


Unit 3 study guide

  • In an ionic bond, metals lose electrons while nonmetals gain electrons


Unit 3 study guide

  • In a covalent bond, nonmetals share electrons


Unit 3 study guide

  • When an atom loses electrons, it becomes a positive charge ion which is called a cation

  • When an atom gains electrons, it becomes a negative charge ion which is called a anion


Unit 3 study guide

  • Determine whether these compounds are ionic or covalent.

    • NaCl- ionic

    • CH4 - covalent

    • CaCl2 - ionic

    • NH3 - covalent

    • Al2O3 - ionic


Unit 3 study guide

  • Name each ionic compound. (Metal name + Nonmetal stem name + -ide ending)

  • Ex: K3P = potassium + phosph + -ide = potassium phosphide

  • NaBr__sodium bromide_____________

  • CaO__calcium oxide___________________

  • Li2S ___lithium sulfide___________________

  • LiF__lithium fluoride__________________

  • MgO___magnesium oxide__________


Unit 3 study guide

  • Name these ionic compounds containing transition metals.

    • Pb3P2___lead (II) phosphide___________

    • Co3N2___cobalt (II) nitride__________

    • CuBr2___copper (II) bromide________________

    • FeBr3___iron (III) bromide_________________

    • ZnO____zinc (II) oxide_______________


Unit 3 study guide

  • Name each ionic compound containing polyatomic ions. ( Metal name + Polyatomic ion name or Polyatomic ion name + Polyatomic ion name or Polyatomic ion name + Nonmetal name)

    • Be(OH)2__beryllium hydroxide___________

    • CaCO3___calcium carbonate____

    • NH4OH ___ammonium hydroxide______

    • AlPO4____aluminum phosphate____

    • NH4F _____ammonium fluoride____


Unit 3 study guide

  • Write the Greek prefixes for the numbers 1-10.


Unit 3 study guide

  • Name these covalent compounds using prefixes.

  • ( Prefix + element name + Prefix + stem name + -ide )

  • Ex: P2O5 = diphosphoruspentaoxide

    • SO3___sulfur trioxide__________

    • XeF6___xenon hexafluoride___________________

    • SiBr4___silicon tetrabromide____________________

    • Cl2O7__dichlorineheptaoxide_______

    • P4O10_tetraphosphorusdecaoxide______


Unit 3 study guide

  • Write the formulas for the following compounds

    • aluminum chloride _____AlCl3________________

    • calcium carbonate ______CaCO3____________

    • beryllium phosphide _____Be3P2_____________

    • copper (IV) oxide ______CuO2______________

    • magnesium acetate _____Mg(C2H3O2)2________


Unit 3 study guide

  • Write the name of each acid. (Hydro- + stem name of element + -ic + acid)

    • HCl____hydrochloric acid________________

    • HF _____hydrofluoric acid_________________

    • HBr_____hydrobromic acid_________


Unit 3 study guide

  • What do subscripts tell you in a chemical formula? How many of each atom there is in a chemical formula

  • What do coefficients tell you in a chemical formula? How many of each compound there is


Unit 3 study guide

yields

reactants

product

subscript

coefficient


Unit 3 study guide

  • Identify the number of atoms in each compound

    • CH4__5___

    • AgNO3__5___

    • Mg(NO3)2__9___


Unit 3 study guide

  • What does the law of conservation of matter state? Why is it important for a chemical reaction to be balanced?

  • Matter cannot be created or destroyed in a chemical reaction. The same number of atoms must go in and come out of a chemical reaction


Unit 3 study guide

  • What doe each of these letters mean after a compound in a chemical equation?

    • s - solid

    • l - liquid

    • g - gas

    • aq - aqueous


Unit 3 study guide

  • Balance the following chemical equations.

    • _4__ P + __5_ O2 ___ P4O10

    • ___ Mg + _2__ HCl ___ MgCl2 + H2

    • ___ NaS + ___ ZnNO3 ___ NaNO3 + ___ ZnS


Unit 3 study guide

  • What are the 5 types of chemical reactions? Give an example of each.


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