| Assessment Questions: 43 results |
Matter_and_Measurement : ElementType (10 Variations)
Which of the following are metals?
Periodicity / Periodic Table
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Atoms,_Molecules_and_Ions : ElementGroup (10 Variations)
The element neon is ...
Periodicity / Periodic Table
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Atoms,_Molecules_and_Ions : GeneralPeriodicTable (12 Variations)
Which of the following statements concerning the periodic table is NOT correct?
Periodicity / Periodic Table
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Matter_and_Measurement : CompareFCTemps (10 Variations)
Which is the higher temperature, 350oC or 350oF?
Chemometrics |
Nomenclature / Units / Symbols
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Matter_and_Measurement : ConvertUnits (10 Variations)
Your textbook is approximately 8.75 inches by 10.25 inches. What are these measurements in centimeters?
Chemometrics |
Nomenclature / Units / Symbols
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Organic : AlcoholClassification (10 Variations)
Match the following alcohols to the proper classification. (You may not need to use all of the classifications.)
Alcohols |
Nomenclature / Units / Symbols
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Stoichiometry : AtomsAndGrams (10 Variations)
How many moles of atoms does a 500. g bar of gold contain?
Stoichiometry |
Nomenclature / Units / Symbols
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Atoms,_Molecules_and_Ions : MolcFormulaTypes (8 Variations)
The structural formula for 2-methyl-butane is given below. What is the molecular formula for 2-methyl-butane? 
Nomenclature / Units / Symbols
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Matter_and_Measurement : ConversionFactor (4 Variations)
Which conversion factor is needed to complete the dimensional analysis for the following problem?
It costs $3 per package of 10 pairs of socks. How much does 2 pairs of socks cost?
Chemometrics |
Nomenclature / Units / Symbols
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Atoms,_Molecules_and_Ions : ElementSpelling (10 Variations)
Which of the following elements are spelled incorrectly?
Nomenclature / Units / Symbols
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Atoms,_Molecules_and_Ions : IonicName (10 Variations)
What is the name of MgS?
Nomenclature / Units / Symbols
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Atoms,_Molecules_and_Ions : NameFromFormula (16 Variations)
What is the name of N2H4?
Nomenclature / Units / Symbols
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Atoms,_Molecules_and_Ions : NameIonFromFormula (16 Variations)
The name of NH4+ is the __________ ion. Write the name of the ion in the box below. Be careful, spelling counts.
Nomenclature / Units / Symbols
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Bonding : Electronegativity (8 Variations)
From the bonds listed below, choose the one in which the highlighted atom is the partially positive end of the bond. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
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Bonding : MostPolarBond (8 Variations)
From the bonds listed below, choose the one that is the most polar. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
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Bonding : OrganicBondLength (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. The structure for this compound is shown below, although lone electron pairs are not shown. Which of the following bonds in the structure is the shortest?
Covalent Bonding |
Periodicity / Periodic Table
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Organic : AlkaneNomenclature (10 Variations)
What is the correct name for the following compound:
CH3CH2CH2CH3
Alkanes / Cycloalkanes |
Nomenclature / Units / Symbols
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Thermochemistry : ConvertEnergyUnits (4 Variations)
The label on a granola bar says it provides 120 Calories. How many kilojoules of energy will this bar provide if it is completely metabolized?
Calorimetry / Thermochemistry |
Nomenclature / Units / Symbols
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Molecular_Structure : AtomFromGeometry (8 Variations)
Which atom or atoms could be the central atom, X, in the stable molecule XH3 with one lone pair of electrons?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : CompareElectConfigs (8 Variations)
Compare the following two elements, identified by their electron configurations:
A - [Kr]4d95s2
B - [Ar]3d104s24p4
Select the answer(s) that has the correct comparison between elements.
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : CompareRadii (10 Variations)
Which of the following have larger radii than a fluorine atom?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : ExplainPeriodicTrends (10 Variations)
In an isoelectronic series the ionic radii...
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : GeneralPeriodicTrends (5 Variations)
Which of the following statements is an INCORRECT description of periodic trends for main group elements?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : IonizationEnerTrends (10 Variations)
Which of the following groups of elements is arranged correctly in order of increasing first ionization energy?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atomic_Structure_and_the_Periodic_Table : Isoelectronic (4 Variations)
Which of the following atoms or ions does NOT have an electron configuration of [He]2s22p6?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atoms,_Molecules_and_Ions : IonCharge (12 Variations)
Identify each of the following ions as having the correct or incorrect charge.
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atoms,_Molecules_and_Ions : CompareElements (10 Variations)
Which of the following is something that nitrogen and antimony have in common?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Atoms,_Molecules_and_Ions : IonChargeSubatmParts (10 Variations)
What is the charge on an ion that contains 47 protons, 62 neutrons, and 46 electrons?
Atomic Properties / Structure |
Periodicity / Periodic Table
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Solutions : ConvertConcUnits (10 Variations)
The maximum concentration of arsenic in drinking water that is allowed by the EPA is 0.050 mg/L. Express this as a weight percent. (You can assume the density of the water solution is 1.0g/mL.)
Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
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Solutions : GramsToMolalSoln (20 Variations)
How many grams of citric acid need to be added to 750 ml of ethanol to make a 0.50 m solution?
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|
Density (g/ml)
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Molecular Weight (g/mol)
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Citric acid
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1.665
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192.14
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Ethanol
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0.7893
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46.07
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Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
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Solutions : WtPercentToMolarity (4 Variations)
A common concentration unit used commercially is percent weight per volume (%W/V) which is the number of grams of solute in 100 mL of solution. A bottle of vinegar contains 5 %W/V acetic acid (CH3COOH). What is the molar concentration of acetic acid in the vinegar?
Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
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Solutions : CalcMolarityFromPPT (10 Variations)
You are given a water sample to analyze from a lake contaminated with lead. It takes 24 mL of 0.020 M NaCl to exactly precipitate the Pb2+ ions from 61 mL of the water sample. What is the concentration of Pb2+ ions in the water?
Pb2+(aq) + 2NaCl(aq) PbCl2(s) + 2Na+(aq)
Solutions / Solvents |
Nomenclature / Units / Symbols |
Chemometrics
|
Reactions : HighOxNumber (10 Variations)
In which of the following does sulfur have the highest oxidation number?
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Properties / Structure
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Reactions : IDOxidationNumber (10 Variations)
What is the oxidation number of sulfur in barium sulfate (BaSO4)?
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Properties / Structure
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Alkenes (16 Variations)
A collection of 16 assessment questions about Alkenes
Alkenes |
Reactions |
Nomenclature / Units / Symbols |
Stereochemistry |
Addition Reactions
|
Nomenclature (1 Variations)
A collection of 1 assessment questions about Nomenclature
Aldehydes / Ketones |
Nomenclature / Units / Symbols |
Amines / Ammonium Compounds |
Carboxylic Acids
|
Alkanes (22 Variations)
A collection of 22 assessment questions about Alkanes
Alkanes / Cycloalkanes |
Conformational Analysis |
Nomenclature / Units / Symbols |
Lewis Structures |
Stereochemistry |
Reactions
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Alkenes and Alkynes (31 Variations)
A collection of 31 assessment questions about Alkenes and Alkynes
Alkenes |
Addition Reactions |
Alkynes |
Carbocations |
Stereochemistry |
Reactions |
Nomenclature / Units / Symbols |
Alcohols |
Epoxides |
Oxidation / Reduction |
Grignard Reagents
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Aromatic (26 Variations)
A collection of 26 assessment questions about Aromatic
Aromatic Compounds |
Nomenclature / Units / Symbols |
Reactions |
Electrophilic Substitution |
Mechanisms of Reactions |
Oxidation / Reduction |
Resonance Theory |
Addition Reactions |
Carbocations |
Synthesis
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Stereochemistry (21 Variations)
A collection of 21 assessment questions about Stereochemistry
Stereochemistry |
Conformational Analysis |
Chirality / Optical Activity |
Alkanes / Cycloalkanes |
Alkenes |
Alcohols |
Enantiomers |
Diastereomers |
Carbohydrates |
Carboxylic Acids |
Nomenclature / Units / Symbols |
Esters
|
Functional Groups (9 Variations)
A collection of 9 assessment questions about Functional Groups
Reactions |
Amines / Ammonium Compounds |
Alkanes / Cycloalkanes |
Conformational Analysis |
Nomenclature / Units / Symbols |
Aldehydes / Ketones |
Carboxylic Acids |
Amides |
Ethers
|
Nomenclature (10 Variations)
A collection of 10 assessment questions about Nomenclature
Physical Properties |
Carboxylic Acids |
Esters |
Molecular Properties / Structure |
Aromatic Compounds |
Amines / Ammonium Compounds |
Phenols |
Nomenclature / Units / Symbols |
Alkanes / Cycloalkanes |
Stereochemistry
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Alcohols and Ethers (22 Variations)
A collection of 22 assessment questions about Alcohols and Ethers
Alcohols |
Synthesis |
Oxidation / Reduction |
Aldehydes / Ketones |
Alkenes |
Carboxylic Acids |
Grignard Reagents |
Ethers |
Reactions |
Mechanisms of Reactions |
Organometallics |
Nomenclature / Units / Symbols |
Physical Properties
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