Assessment Questions: 15 results
Matter_and_Measurement : ElementState (10 Variations)
Identify how each of the following elements exist under normal conditions.
Phases / Phase Transitions / Diagrams
Matter_and_Measurement : PhaseProperties (10 Variations)
Does the following statement apply to solids, liquids, or gases?
It has a fixed volume.

Phases / Phase Transitions / Diagrams
Intermolecular_Forces__Liquids_and_Solids : PhaseDiagrams (6 Variations)
Match the following conditions to the physical state of the contents of the vessel.

Click here to open the phase diagram.

Phases / Phase Transitions / Diagrams
Thermochemistry : PhaseChangeEnthalpy (10 Variations)
A solid melts to a liquid. Which of the following statements are true? (Assume constant pressure and a flexible container.)
Calorimetry / Thermochemistry |
Phases / Phase Transitions / Diagrams
Thermochemistry : PhaseChanges (8 Variations)
Steam at 100oC is condensed by an ice-water mixture at 0oC. Assuming that there is still ice present when the process is over, how much ice will be melted if 10.0 g of steam is condensed? The following may be useful:
enthalpy of vaporization of water = 40.7 kJ/mol; enthalpy of fusion of water = 6.07 kJ/mol; specific heat capacity of water = 4.184 J/g•K.

Calorimetry / Thermochemistry |
Phases / Phase Transitions / Diagrams
Thermodynamics : EntropyPhaseChange (13 Variations)
Aluminum can be evaporated in a vacuum to form highly reflective coatings. Aluminum boils at 2792K and has a heat of vaporization of 70.0 kcal/mol. Calculate the entropy change for the vaporization of one mole of aluminum.
Thermodynamics |
Chemometrics |
Phases / Phase Transitions / Diagrams
Intermolecular_Forces__Liquids_and_Solids : PhaseEnergyChanges (6 Variations)
When a liquid is transformed into its vapor at constant temperature,
Phases / Phase Transitions / Diagrams |
Calorimetry / Thermochemistry
Intermolecular_Forces__Liquids_and_Solids : Superconductors (4 Variations)
Which of the following statements is NOT an accurate description of superconducting materials?
Solids |
Matter_and_Measurement : CalcDensity (5 Variations)
What is the density of a 7000 gram brick that is 4 inches x 5 inches x 3 inches?
Physical Properties |
Matter_and_Measurement : UseDensity (10 Variations)
If a 10.0 inch aluminum skillet weighs 3 pounds, how many cm3 of aluminum does it contain? The density of aluminum is 2.70 g/cm3.

Physical Properties |
Solids |
Intermolecular_Forces__Liquids_and_Solids : ClassifySolids (10 Variations)
Classify each of the following substances, in the solid state, as molecular, ionic, covalent network, or metallic.

Substance Appearance Melting Pt. (¬?C) Boiling Pt. (¬?C) Conducts as solid Conducts as liquid
A Colorless crystal -121 20.8 no no
B Colorless crystal 846 1505 no yes
C Silvery gray 1675 3260 yes yes
D Colorless crystal 1713 2590 no no

Solids |
Physical Properties
Intermolecular_Forces__Liquids_and_Solids : AtomRadiusUnitCell (7 Variations)
Nickel has a unit cell that is face-centered cubic with a volume of 43.763Å3. The atom at the center of each face just touches the atoms at the corners. What is the atomic radius of nickel?
Solids |
Crystals / Crystallography
Intermolecular_Forces__Liquids_and_Solids : DensityFromUnitCell (13 Variations)
Oldhamite (CaS) has a rock salt structure like NaCl (which has interpenetrating face-centered cubic structures). The ionic radius of Ca2+ is 0.99 angstroms, and the ionic radius of S2- is 1.84 angstroms. What is the density of CaS?
Solids |
Crystals / Crystallography
Intermolecular_Forces__Liquids_and_Solids : ElectricalConductivity (8 Variations)
Which of the following has the greatest electrical conductivity?
Solids |
Metals |
Physical Properties
Intermolecular_Forces__Liquids_and_Solids : BoilingPoint (10 Variations)
Which of the following substances has the highest boiling point?
Liquids |
Noncovalent Interactions |
Molecular Properties / Structure