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Chapter 7 Test

Quiz by Holly Pashia

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24 questions
Show answers
  • Q1
    The platinum(II) and platinum(IV) ion
    are anions
    are polyatomic ions
    have charges of 2+ and 4+, repsectively
    have charges of 1+ and 3+, respectively
    30s
  • Q2
    What is the name of the compound made of zinc ions, Zn 2+, and fluoride ions, F 1-?
    zinc(II) flourite
    zinc difluoride
    zinc fluorate
    zinc fluroide
    30s
  • Q3
    How many atoms are present in one formula unit of barium acetate Ba(CH3COO)2?
    16
    4
    15
    8
    30s
  • Q4
    What is the formula for the compound dinitrogen tetroxide?
    N3O4
    N2O4
    N3O2
    N2O3
    30s
  • Q5
    The term acid usually refers to
    A compound containing hydrogen and oxygen
    A compound containing hydrogen
    A solution of the acid compound in water
    Only the acid compound
    30s
  • Q6
    Which element has the same oxidation number in all of its compounds?
    hydrogen
    chlorine
    fluorine
    oxygen
    30s
  • Q7
    What is the correct prefix-based name for selenium(II) fluoride?
    Diselenium difluoride
    Selenium fluoride
    Selenium difluoride
    Diselenium fluoride
    30s
  • Q8
    A monatomic ion has an oxidation number
    equal to its subscript
    indicated by the ion's prefix
    of zero
    equal to the charge of the ion
    30s
  • Q9
    What is the correct Stock name for SnBr4?
    tin bromide
    tin(IV) bromide
    tin tetrabromide
    tin(IV) tetrabromide
    30s
  • Q10
    For any molecule, formula unit, or ion, the sum of the average atomic masses of all the atoms represented in a formula is the
    formula mass
    molecular mass
    ionic mass
    atomic mass
    30s
  • Q11
    One mole of potassium atoms has a mass of
    6.022 x 10 23 g
    78.20 g
    39.10 g
    1 g
    30s
  • Q12
    A compound's molar mass is numerically equal to
    the total number of moles of the compound
    its formula mass
    its mass number
    the total number of atoms in the molecule
    30s
  • Q13
    The percentage composition of a compound is
    the molar mass of the compound / the mass of each element in 1 mol of the compound
    the percentage by mass of each element in the compound
    the percentage by volume of each element in a compound
    the mass of each element in mol of the compound x the molar mass of the compound
    30s
  • Q14
    The smallest whole-number ratio of atoms of each element, combined in the simplest unit of a chemical compound is known as a(n)
    molecule
    formula unit
    empirical formula
    molecular formula
    30s
  • Q15
    What is the empirical formula for benzene, C6H6?
    C2H2
    CH
    C6H6
    C3H3
    30s

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