9685808
Beschreibung
Quiz von Christine Davis - IU8, aktualisiert more than 1 year ago
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Erstellt von Christine Davis - IU8
vor mehr als 7 Jahre
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Frage 1
Frage
Which of the following makes up a molecule of water?
Antworten
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One atom of hydrogen and one atom of oxygen
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One atom of hydrogen and one atom of sodium
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Two atoms of hydrogen and two atoms of oxygen
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Two atoms of hydrogen and one atom of oxygen
Frage 2
Frage
Most of water's properties occur because it is:
Antworten
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A polar covalent bonded molecule
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Made with oxygen
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A polar ionic
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Makes up 75% of the earth
Frage 3
Frage
Hydrogen bonds take place between the …
Antworten
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hydrogens of the water molecules
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oxygen and oxygen of the water molecules
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oxygen on one water molecule and the hydrogen of the other water molecule
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oxygen and hydrogen of the same molecule
Frage 4
Frage
Which property of water is responsible for the variety of aquatic organisms throughout the various seasons?
Antworten
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adhesion
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cohesion
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High specific heat
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Solid water is less dense than liquid water
Frage 5
Frage
Nuclear reactors can run into problems if the reactor and fuel rods get too hot. They will use water as a coolant to keep the reactor core at a proper temperature. What property of water is this demonstrating?
Antworten
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Cohesion
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high specific heat
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universal solvent
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adhesion
Frage 6
Frage
A polar bond is created by unequally shared electrons. Nonpolar bonds are equally shared electrons. Which statement best explains why water will dissolve polar compounds and NOT non polar compounds?
Antworten
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Polar compounds are charged molecules with + and – ends. These charged areas will attract other charged areas of other molecules.
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Polar and nonpolar are opposite molecules. Opposite molecules will dissolve opposites.
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Polar molecules are like ice, they are very cold; nonpolar are warm
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Ionic are the best to be dissolved because they have opposite charges.
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