NEW
Font size
WorksheetsUnit 5 Test Review
Total questions: 20
Worksheet time: 17mins
Use the information and data table to answer the following question. A forensic scientist collected the following three substances from a crime scene.
Which of the following unknowns is best identified as KCl?
Unknown A
Unknown B
Unknown C
Impossible to determine the answer
Use the information and table to answer the following question. Students collected the following data on four different substances. Based on the data, which substance has the strongest intermolecular forces?
Substance 1
Substance 2
Substance 3
Impossible to determine
Use the model to answer the following question. Which substance would be brittle, have a high boiling point, and be a good conductor of heat?
Model A is first; Model B is middle; Model C is last
Model A because it's nonpolar covalent.
Model B because it's polar covalent.
Model C because it's ionic.
None of the above have those properties
Use the models to answer the following question. Which model represents a nonpolar molecule?
Model A - blue and on left side;
Model B - green and on right side
Model A, because there is equal sharing of electrons.
Model B, because there is equal sharing of electrons.
Model A, because there is an unequal sharing of electrons creating a positive and negative dipole.
Model B, because there is an unequal sharing of electrons creating a positive and negative dipole.
Use the image to answer the following question. An engineer is developing a new material that would allow electricity to flow. Which of the following materials would an engineer choose and why?
Carbon, because it is a good insulator.
Copper, because it is a good insulator.
Carbon, because it contains ions that have the ability to conduct electricity.
Copper, because it contains ions that have the ability to conduct electricity.
Use the data and information to answer the following question. Two students plan and carry out an investigation to determine which of the three unknown substances has the strongest intermolecular forces. Which of the following tests will MOST help them to infer the strength of intermolecular forces between ionic and covalent compounds?
Solubility in Water
Melting Point
Density
Conductivity of Solid
A group of students are trying to design an electrical material. The students must use a solid and it must either be composed of ionic, covalent, or metallic bonds. Which of the following materials would be best and why?
ionic, because the valence electrons are shared between atoms
covalent, because the valence electrons are mobile
metallic, because the valence electrons are stationary
metallic, because the valence electrons are mobile
Use the information and data table to answer the following question. Which substance has the stronger intermolecular forces?
Substance R because it has a lower boiling point, so the molecules have a weak attraction to one another.
Substance P because it has a lower boiling point, so the molecules have a weak attraction to one another.
Substance P because it has a higher boiling point, so the molecules have a strong attraction to one another.
Substance R because it has a higher boiling point, so the molecules have a strong attraction to one another.
Use the information and data table to answer the following question. Which substance has the strongest intermolecular forces?
Diethyl ether because it has the lowest viscosity.
Ethylene glycol because it has the highest viscosity.
Ethanol because it has the highest viscosity.
Acetone because it has the lowest viscosity.
What is the ratio of Group 2 atoms to Group 15 atoms in the ionic bond that forms between them?
1:3
3:2
2:1
2:3
Which phrase correctly describes the distribution of charge and the molecular polarity of ethane?
symmetrical and polar
asymmetrical and polar
asymmetrical and nonpolar
symmetrical and nonpolar
Carbon dioxide has ___ bonds and is a ____ molecule.
polar; polar
polar; nonpolar
nonpolar; nonpolar
nonpolar; polar
The correct name for CH4 is...
Carbon Hydrogen
Carbon Tetrahydride
Monocarbon hydride
Carbon Hydride
If group 2 and group 16 were to create an ionic compound, what would the generic formula be?
X2Y6
X2Y2
XY
X6Y2
Which of the following questions should be asked to correctly name a covalent compound?
What do we change the ending of the second element to?
What is the name of the polyatomic ion in the formula?
What prefixes should be used for the first and second element?
What is the charge of the transition metal?
Use the model to answer the following question. Which substance would be consistent with a polar molecule HCl
Model A is first; Model B is middle; Model C is last
Model B and C because it is a charged particle so the bonding shows chlorine with a negatively charged anion and hydrogen with a positively charged cation.
Model B because it shows a sharing of electrons between hydrogen and chlorine to create the polar bond.
Model C because it shows charged particles from transferring electrons between the hydrogen and chlorine.
Model A because it is an equal sharing of electrons since hydrogen and chlorine have an electronegativity difference of zero.
Which of the following questions should a student ask before naming a compound?
Does the compound contain a cation?
Does the compound contain a polyatomic ion?
Is the compound ionic or covalent?
Does the first element need a prefix?
