This quiz focuses on water and its molecular properties as detailed in Chapter 15 of a Chemistry course. It assesses understanding of water's role as a life foundation, its unique properties due to hydrogen bonding, and its behavior in different conditions.
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Hydrogen molecule
Water molecule
Oxygen molecule
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Five important properties of water that result from hydrogen bonding.
Five important properties of hydrogen that result from water bonding.
Five important properties of oxygen that result from hydrogen bonding.
Water molecule
Oxygen molecule
Hydrogen molecule
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Those sentences describe how detergent molecules strengthen hydrogen bonding between water molecules.
Those sentences describes how water beads up into small, nearly spherical drops on a paper towel.
Those sentences describes results of the surface tension of water.
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Because air molecules at the surface cannot form hydrogen bonds with water molecules, molecules on the surface are drawn into the body of liquid. The inward pull on the molecules is surface tension.
Because hydrogen molecules at the surface cannot form water bonds with air molecules, molecules on the surface are drawn into the body of liquid. The inward pull on the molecules is surface tension.
Because water molecules at the surface cannot form hydrogen bonds with air molecules, molecules on the surface are drawn into the body of liquid. The inward pull on the molecules is surface tension.
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A sphere
A cone
A circle
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This correctly describes a property of water molecules.
This correctly describes a property of detergents.
This correctly describes a property of hydrogen bonding.
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Liquids with higher surface tension produce drops that are greatly spherical.
Liquids with higher surface tension produce drops that are more nearly spherical.
Liquids with higher surface tension produce drops that are less nearly spherical.
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Condensation
Vaporize
Surfactant
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hydrogen
Water
Oxygen
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True
False
Maybe
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It moderates the temperature by keeping it cooler during the day and warmer at night.
It moderates the temperature by keeping it warmer during the day and cooler at night.
It moderates the temperature by keeping it cooler during the day and cooler at night.
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Sometimes
True
False
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True about vaporization or condensation of hydrogen.
True about vaporization or condensation of oxegen.
True about vaporization or condensation of water.
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Temperatures in tne tropics would be much lower if water did not absorb heat while evaporating from the surfaces of surrounding oceans. Temperatures in polar regions would be much higher if water did not release heat while condensing out of air.
Temperatures in tne tropics would be much higher if water did not absorb heat while evaporating from the surfaces of surrounding oceans. Temperatures in polar regions would be much lower if water did not release heat while condensing out of air.
Temperatures in tne tropics would be much higher if water absorbs heat while evaporating from the surfaces of surrounding oceans. Temperatures in polar regions would be much lower if water did not release cool while condensing out of air.
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? Water has a boiling point that is substantially higher than the other compounds. Because of hydrogen bonding in water, more heat is needed to disrupt attractions between hydrogen molecules.
Water has a boiling point that is substantially higher than the other compounds. Because of hydrogen bonding in water, more heat is needed to disrupt attractions between water molecules.
Water has a boiling point that is substantially lower than the other compounds. Because of oxygen bonding in water, more heat is needed to disrupt attractions between water molecules.
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Density usually increases as a substance warms.
Density usually increases as a substance cools.
Density usually decreases as a substance cools.
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When ice melts, the framework collapses, and the molecules pack closer together.
When ice melts, the framework inflates, and the molecules are packed looser together.
When ice melts, the framework collapses, and the molecules pack looser together.
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1.000 g/cm3
0.9998 g/cm3
1 -OQO 9/cm3
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0.9168 g/cm3
0.9998 g/cm3
1 -OQO 9/cm3
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0.9168 g/cm3
0.9998 g/cm3
0.9168 9/cm3
The density of liquid water decreases from 4 °C to 0 °C, and ice at 0 °C is more dense than liquid water at 0 °C.No, ice will float on liquid water.
The density of liquid water increases from 4 °C to 0 °C, and ice at 0 °C is less dense than liquid water at 0 °C. No, ice will float on liquid water.
The density of liquid water decreases from 4 °C to 0 °C, and ice at 0 °C is less dense than liquid water at 0 °C. Yes, ice will float on liquid water.
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Solvent solutions
Aqueous solutions
Homogeneous solutions
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Solution
Solute
Solvent
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Solution
Solute
Solvent
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Solution
Solute
Solvent
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True
False
Maybe
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False about aqueous solutions.
True about aqueous solutions.
More information is needed.
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Maybe
True
False
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Water molecules collide with the crystal and attract its Na+ and Cl~ ions.
Oxygen molecules collide with the crystal and attract its Na+ and Cl~ ions.
Ionic molecules collide with the crystal and attract its Na+ and Cl~ ions.
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Solution
Solvation
Solvent
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Most of the ions will become surrounded by solvent molecules as the surface disappears into the solution.
Some of the ions will become surrounded by solvent molecules as the surface disappears into the solution.
All of the ions will become surrounded by solvent molecules as the surface disappears into the solution.
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The attractions between the ions in the crystals of these ionic compounds are weaker than the attractions between the ions and water molecules.
The attractions between the ions in the crystals of these ionic compounds are stronger than the attractions between the ions and water molecules.
There is no difference in the strength of the attractions between the ions in the crystals and the attractions between the ions and water molecules.
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"oxygen molecules"
"solvent molecules"
"like dissolves like"
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Electrolytes
Ions
Water
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True
Maybe
False
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Ions
Nonelectrolytes
Electrolytes
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Non conductive
Ice crystal
Water of hydration
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A hydrate
Dehydrate
Conductive
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The compound contains five water molecules per formula unit.
The compound contains six water molecules per formula unit.
The compound contains nine water molecules per formula unit.
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True for hydrated compounds
False for hydrated compounds
For pentahydrate compounds
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Anhydrous
Effloresce
Hygroscopic
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Desiccants
Copper sulfate
Pentahydrate
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The sodium hydroxide pellets remove enough water from the air to dissolve completely and form a solution. Sodium hydroxide is an example of a deliquescent compound.
The ion hydroxide pellets remove enough water from the air to dissolve completely and form a solution. Sodium hydroxide is an example of a deliquescent elements.
The water hydroxide pellets remove enough water from the air to dissolve completely and form a solution. nonelectrolytes hydroxide is an example of a deliquescent compound.
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Maybe
True
False
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Colloid
Colloidal particles
Suspensions
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Maybe
True
False
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