c
The formula C3H8O is an example of a(an) _____________ formula.
a. structural
b. inorganic
c. molecular
d. condensed
e. space-filling
a. structural
b. inorganic
c. molecular
d. condensed
e. space-filling
d
The chemical compound (CH3)3COH can also be represented as:
a. C4H10O2.
b. C3H10O.
c. C3H9O.
d. C4H10O.
e. C4H9O.
a. C4H10O2.
b. C3H10O.
c. C3H9O.
d. C4H10O.
e. C4H9O.
e
Select the molecular formula for a compound that contains 10 carbon atoms, 24 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms and 1 sulfur atom.
a. Ca10Hy24NiOx3Su
b. Ca10H24NO3Se
c. C10H24NO3Sn
d. Cu10H24NO3S
e. C10H24NO3S
a. Ca10Hy24NiOx3Su
b. Ca10H24NO3Se
c. C10H24NO3Sn
d. Cu10H24NO3S
e. C10H24NO3S
b
Which of the following number and prefix combinations is incorrect?
a. 3 tri
b. 2 bi
c. 6 hexa
d. 5 penta
e. 8 octa
a. 3 tri
b. 2 bi
c. 6 hexa
d. 5 penta
e. 8 octa
c
What is the correct name of N2O5?
a. nitric oxide
b. nitrous oxide
c. dinitrogen pentoxide
d. dinitrogen pentoxygen
e. nitrous pentoxide
a. nitric oxide
b. nitrous oxide
c. dinitrogen pentoxide
d. dinitrogen pentoxygen
e. nitrous pentoxide
e
Which formula name combination is incorrect?
a. SeCl4 and selenium tetrafluoride
b. P4O10 and tetraphosphorus decaoxide
c. AsF5 and arsenic pentafluoride
d. N2O3 and dinitrogen trioxide
e. SF6 and sulfur heptafluoride
a. SeCl4 and selenium tetrafluoride
b. P4O10 and tetraphosphorus decaoxide
c. AsF5 and arsenic pentafluoride
d. N2O3 and dinitrogen trioxide
e. SF6 and sulfur heptafluoride
d
Which what is the correct chemical formula of ammonia?
a. N2
b. NO2
c. N2O
d. NH3
e. N2H4
a. N2
b. NO2
c. N2O
d. NH3
e. N2H4
b
Which compound is not a hydrocarbon?
a. CH4
b. CH3OH
c. C2H2
d. C6H14
e. C2H6
a. CH4
b. CH3OH
c. C2H2
d. C6H14
e. C2H6
d
Which compound is an alcohol?
a. CH3OCH3
b. CH4
c. C2H6
d. C6H5OH
e. CH3NH2
a. CH3OCH3
b. CH4
c. C2H6
d. C6H5OH
e. CH3NH2
e
Which compound is incorrectly named?
a. C8H18 octane
b. C3H8 propane
c. C5H12 pentane
d. C4H10 butane
e. C7H16 hexane
a. C8H18 octane
b. C3H8 propane
c. C5H12 pentane
d. C4H10 butane
e. C7H16 hexane
e
What is the correct general formula for an alkane?
a. CnH2n-2
b. CnHn+2
c. CnHn
d. CnH2n
e. CnH2n+2
a. CnH2n-2
b. CnHn+2
c. CnHn
d. CnH2n
e. CnH2n+2
e
Which alkane has the lowest boiling point?
a. butane
b. octane
c. propane
d. hexane
e. ethane
a. butane
b. octane
c. propane
d. hexane
e. ethane
e
Which of the following straight chain alkanes has the highest boiling point?
a. butane
b. pentane
c. ethane
d. hexane
e. decane
a. butane
b. pentane
c. ethane
d. hexane
e. decane
d
Which of the following are constitutional isomers?
a. C6H5OH and C6H4(OH)2
b. C3H8 and CH3CH2CH3
c. CH2O and C6H12O6
d. C2H5OH and CH3OCH3
e. C2H4 and C2H6
a. C6H5OH and C6H4(OH)2
b. C3H8 and CH3CH2CH3
c. CH2O and C6H12O6
d. C2H5OH and CH3OCH3
e. C2H4 and C2H6
c
Which statement about constitutional isomers is true?
a. Constitutional isomers have the same chemical properties.
b. Constitutional isomers have the same physical properties.
c. Constitutional isomers have the same molecular formulas.
d. Constitutional isomers always contain identical functional groups.
e. Constitutional isomers only occur among straight chain compounds
a. Constitutional isomers have the same chemical properties.
b. Constitutional isomers have the same physical properties.
c. Constitutional isomers have the same molecular formulas.
d. Constitutional isomers always contain identical functional groups.
e. Constitutional isomers only occur among straight chain compounds
e
The compound 3,3-dimethylhexane is an isomer of:
a. hexane
b. decane
c. nonane
d. heptane
e. octane
a. hexane
b. decane
c. nonane
d. heptane
e. octane
e
Find the correct combination of protons and electrons below for the magnesium ion.
a. 12 protons and 14 electrons
b. 24 protons and 22 electrons
c. 12 protons and 12 electrons
d. 24 protons and 24 electrons
e. None of these choices
a. 12 protons and 14 electrons
b. 24 protons and 22 electrons
c. 12 protons and 12 electrons
d. 24 protons and 24 electrons
e. None of these choices
d
Find the correct combination of protons and electrons below for the fluoride ion.
a. 19 protons and 18 electrons
b. 9 protons and 9 electrons
c. 9 protons and 8 electrons
d. 9 protons and 10 electrons
e. 19 protons and 20 electrons
a. 19 protons and 18 electrons
b. 9 protons and 9 electrons
c. 9 protons and 8 electrons
d. 9 protons and 10 electrons
e. 19 protons and 20 electrons
c
Which of the following formulas is incorrect?
a. K3P
b. MgS
c. Al3S2
d. BaCl2
e. NaI
a. K3P
b. MgS
c. Al3S2
d. BaCl2
e. NaI
e
Which of the following formulas is incorrect?
a. AlPO4
b. Na2HPO4
c. CaCO3
d. KClO4
e. MgNO3
a. AlPO4
b. Na2HPO4
c. CaCO3
d. KClO4
e. MgNO3
c
Which of the following is not an ionic compound?
a. NaF
b. NaOH
c. FCl3
d. CaO
e. MgCl2
a. NaF
b. NaOH
c. FCl3
d. CaO
e. MgCl2
d
Which of the following is not an ionic compound?
a. Na2S
b. LiF
c. MgO
d. CH4
e. TiCl4
a. Na2S
b. LiF
c. MgO
d. CH4
e. TiCl4
e
What is the charge on the iron in Fe(NO3)3?
a. 1+
b. 0
c. 2+
d. 1-
e. 3+
a. 1+
b. 0
c. 2+
d. 1-
e. 3+
d
Give the formula for the ionic compound that forms between strontium and fluorine.
a. SrF
b. Sr2F3
c. Sr2F4
d. SrF2
e. Sr2F
a. SrF
b. Sr2F3
c. Sr2F4
d. SrF2
e. Sr2F
a
Give the formula for the ionic compound that forms between aluminum and oxygen.
a. Al2O3
b. Al2O
c. AlO2
d. AlO
e. Al3O2
a. Al2O3
b. Al2O
c. AlO2
d. AlO
e. Al3O2
b
Which ion is incorrectly named?
a. Ni2+ nickel(II) ion
b. Al3+ aluminum(III) ion
c. Ba2+ barium ion
d. Cr3+ chromium(III) ion
e. K+ potassium ion
a. Ni2+ nickel(II) ion
b. Al3+ aluminum(III) ion
c. Ba2+ barium ion
d. Cr3+ chromium(III) ion
e. K+ potassium ion
c
1 points Save
Which compound is incorrectly named?
a. MgBr2 magnesium bromide
b. NaF sodium fluoride
c. TiCl4 titanium tetrachloride
d. CaO calcium oxide
e. CuO copper(II) oxide
Which compound is incorrectly named?
a. MgBr2 magnesium bromide
b. NaF sodium fluoride
c. TiCl4 titanium tetrachloride
d. CaO calcium oxide
e. CuO copper(II) oxide
e
Which compound is incorrectly named?
a. NaN3 sodium nitride
b. CsCl cesium chloride
c. K2S potassium sulfide
d. MgO magnesium oxide
e. Fe2O3 iron(II) oxide
a. NaN3 sodium nitride
b. CsCl cesium chloride
c. K2S potassium sulfide
d. MgO magnesium oxide
e. Fe2O3 iron(II) oxide
e
Which compound is incorrectly named?
a. K2Cr2O7 potassium dichromate
b. NH4NO3 ammonium nitrate
c. Fe(OH)3 iron(III) hydroxide
d. Ba(OH)2 barium hydroxide
e. Na2SO4 sodium sulfite
a. K2Cr2O7 potassium dichromate
b. NH4NO3 ammonium nitrate
c. Fe(OH)3 iron(III) hydroxide
d. Ba(OH)2 barium hydroxide
e. Na2SO4 sodium sulfite
d
Which compound is incorrectly named?
a. KCl potassium chloride
b. Ni(NO3)2 nickel(II) nitrate
c. Al2(SO4)3 aluminum sulfate
d. Ba(OH)2 barium(II) hydroxide
e. Mg3(PO4)2 magnesium phosphate
a. KCl potassium chloride
b. Ni(NO3)2 nickel(II) nitrate
c. Al2(SO4)3 aluminum sulfate
d. Ba(OH)2 barium(II) hydroxide
e. Mg3(PO4)2 magnesium phosphate
e
Coulomb’s law predicts that the attraction between two oppositely charged ions:
a. is independent of the distance between the ions.
b. decreases linearly with the distance between the ions.
c. increases linearly with the distance between the ions.
d. increases with the square of the distance between the ions.
e. decreases with the square of the distance between the ions
a. is independent of the distance between the ions.
b. decreases linearly with the distance between the ions.
c. increases linearly with the distance between the ions.
d. increases with the square of the distance between the ions.
e. decreases with the square of the distance between the ions
c
Which statement concerning ionic compounds is incorrect?
a. Ionic compounds produce aqueous ions when dissolved in water.
b. Ionic compounds consist of anions and cations in a crystal lattice.
c. Ionic compounds conduct electricity poorly when molten.
d. Ionic compounds have a high boiling point.
e. Ionic compounds conduct electricity poorly as a solid.
a. Ionic compounds produce aqueous ions when dissolved in water.
b. Ionic compounds consist of anions and cations in a crystal lattice.
c. Ionic compounds conduct electricity poorly when molten.
d. Ionic compounds have a high boiling point.
e. Ionic compounds conduct electricity poorly as a solid.
d
Which ionic compound is expected to have the highest melting point?
a. Li3N
b. Na2O
c. LiCl
d. BN
e. MgF2
a. Li3N
b. Na2O
c. LiCl
d. BN
e. MgF2
a
A combustion reaction produces 49.4 g of CO2. Determine the number of moles of carbon dioxide present.
a. 1.12 moles
b. 1.78 moles
c. 1090 moles
d. 0.891 moles
e. 0.882 moles
a. 1.12 moles
b. 1.78 moles
c. 1090 moles
d. 0.891 moles
e. 0.882 moles
a
What is the mass of 0.311 moles of potassium iodate (KIO3)?
a. 66.6 g
b. 214 g
c. 688 g
d. 1.45 ´ 10-3 g
e. 1.50 ´ 10-2 g
a. 66.6 g
b. 214 g
c. 688 g
d. 1.45 ´ 10-3 g
e. 1.50 ´ 10-2 g
c
A sample contains 52.0 g of elemental phosphorus, P4. Determine the number of moles of P4 and the number of atoms of phosphorus present in the sample.
a. 1.68 moles, 4.04 ´ 1024 atoms
b. 0.419 moles, 2.52 ´ 1023 atoms
c. 0.419 moles, 1.01 ´ 1024 atoms
d. 1.68 moles, 1.01 ´ 1024 atoms
e. 0.419 moles, 2.79 ´ 10-24 atoms
a. 1.68 moles, 4.04 ´ 1024 atoms
b. 0.419 moles, 2.52 ´ 1023 atoms
c. 0.419 moles, 1.01 ´ 1024 atoms
d. 1.68 moles, 1.01 ´ 1024 atoms
e. 0.419 moles, 2.79 ´ 10-24 atoms
b
Determine the number of molecules in a drop of water that has a mass of 0.050 g.
a. 5.42 ´ 1023 molecules
b. 1.67 ´ 1021 molecules
c. 5.02 ´ 1021 molecules
d. 6.50 ´ 1026 molecules
e. 2.17 ´ 1026 molecules
a. 5.42 ´ 1023 molecules
b. 1.67 ´ 1021 molecules
c. 5.02 ´ 1021 molecules
d. 6.50 ´ 1026 molecules
e. 2.17 ´ 1026 molecules
c
Determine the number of carbon atoms in 325 mg of aspirin, C9H8O4.
a. 1.80 ´ 10-3
b. 3.17 ´ 1026
c. 9.78 ´ 1021
d. 1.09 ´ 1021
e. 1.96 ´ 1023
a. 1.80 ´ 10-3
b. 3.17 ´ 1026
c. 9.78 ´ 1021
d. 1.09 ´ 1021
e. 1.96 ´ 1023
a
Determine the percent platinum in cisplatin, PtCl2(NH3)2.
a. 65.0%
b. 0.650%
c. 78.9%
d. 58.5%
e. 23.6%
a. 65.0%
b. 0.650%
c. 78.9%
d. 58.5%
e. 23.6%
b
Determine the percent water present in epsom salt, MgSO47H2O.
a. 7.31%
b. 87.0%
c. 9.86%
d. 51.2%
e. 13.0%
a. 7.31%
b. 87.0%
c. 9.86%
d. 51.2%
e. 13.0%
e
Determine the mass percent aluminum in Al2O3.
a. 40.0%
b. 47.1%
c. 54.0%
d. 26.5%
e. 52.9%
a. 40.0%
b. 47.1%
c. 54.0%
d. 26.5%
e. 52.9%
d
Determine the percent potassium present in K2SO4.
a. 28.9%
b. 57.9%
c. 22.4%
d. 44.9%
e. None of these choices
a. 28.9%
b. 57.9%
c. 22.4%
d. 44.9%
e. None of these choices
b
An organic compound has an empirical formula of CH2O and had an approximate molecular weight of 117. What is its molecular formula?
a. C4H4O4
b. C4H8O4
c. C3.9H3.9O3.9
d. C8H4O8
e. C3.9H7.8O3.9
a. C4H4O4
b. C4H8O4
c. C3.9H3.9O3.9
d. C8H4O8
e. C3.9H7.8O3.9
d
An organic compound has an empirical formula of C2H3O and had an approximate molecular weight of 86. What is its molecular formula?
a. C10H14O5
b. C6H8O3
c. C8H12O4
d. C4H6O2
e. C2H3O
a. C10H14O5
b. C6H8O3
c. C8H12O4
d. C4H6O2
e. C2H3O
c
Caffeine has the empirical formula C4H5N2O and an approximate molecular weight of 97.1 g/mol. What is its molecular formula?
a. C2H2NO
b. C4H4N4O4
c. C4H5N2O
d. C8H10N4O2
e. C2H2N2O2
a. C2H2NO
b. C4H4N4O4
c. C4H5N2O
d. C8H10N4O2
e. C2H2N2O2
a
A hydrocarbon contains 89.94% carbon and the remainder hydrogen. Determine the empirical formula of the compound.
a. C3H4
b. CH
c. CH2
d. C2H
e. CH3
a. C3H4
b. CH
c. CH2
d. C2H
e. CH3
a
A hydrocarbon contains 79.89% carbon and the remainder hydrogen. Determine the empirical formula of the compound.
a. CH3
b. C4H10
c. C2H5
d. C3H8
e. C5H12
a. CH3
b. C4H10
c. C2H5
d. C3H8
e. C5H12
c
An organic compound contains 49.3% carbon, 6.9% hydrogen and the remainder oxygen. Determine the empirical formula of the compound.
a. C6H10O5
b. C3H5O
c. C3H5O2
d. CH2O
e. C3H2O
a. C6H10O5
b. C3H5O
c. C3H5O2
d. CH2O
e. C3H2O
b
An organic compound contains 60.0% carbon, 4.44% hydrogen and the remainder oxygen. It has a molecular weight of 180. Determine the empirical formula of the compound.
a. C11H16O
b. C9H8O4
c. C6H12O6
d. C10H12O3
e. C2H2O
a. C11H16O
b. C9H8O4
c. C6H12O6
d. C10H12O3
e. C2H2O
a
A compound is composed of 56.4% phosphorus and the remainder oxygen. Determine the empirical formula of the compound.
a. P2O3
b. PO5
c. P2O5
d. P3O2
e. P2O
a. P2O3
b. PO5
c. P2O5
d. P3O2
e. P2O
d
A hydrate of magnesium sulfate, MgSO4nH2O loses 37.4% of its mass upon heating. The mass loss can be considered to be only water. What is the value of n if all of the water was lost?
a. 3
b. 5
c. 2
d. 4
e. 6
a. 3
b. 5
c. 2
d. 4
e. 6
e
When 2.34 g of pure iron is allowed to react with an excess of oxygen, 3.35 g of the final compound is produced. Determine the formula of the compound.
a. FeO
b. FeO4
c. FeO2
d. FeO3
e. Fe2O3
a. FeO
b. FeO4
c. FeO2
d. FeO3
e. Fe2O3
e
Which of the elements listed below is least abundant in the human body?
a. nitrogen
b. oxygen
c. hydrogen
d. carbon
e. iron
a. nitrogen
b. oxygen
c. hydrogen
d. carbon
e. iron
a
Which of the following elements is classified as a trace element in the human body?
a. arsenic
b. mercury
c. gallium
d. cesium
e. None of these choices
a. arsenic
b. mercury
c. gallium
d. cesium
e. None of these choices
polyatomic
Ions that contain atoms of more than two elements are called _____________ ions.
coulomb’s
The force between two charged particles is given quantitatively as _____________ law.
hydrogen
Compounds that are composed of carbon and _____________ are hydrocarbons.
CuO
The molecular formula for copper (II) oxide is _____________.
C5H12
Give the formula for an alkane containing five carbon atoms
propane
Name the alkane with the formula C3H8.
