biol 1201 quiz 2

biol 1201 quiz 2 - the specific heat of that substance...

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Question 1 5 of 5 points Cells are surrounded by water, and cells themselves consist of about 70% to 95% water. As a result _____. Selected Answer: all of the above Question 2 5 of 5 points Because molecules of water are farther apart in ice than in liquid water, _____. Selected Answer: ice floats Question 3 5 of 5 points Sweating has a cooling effect because of water's high _____. Selected Answer: heat of vaporization Question 4 5 of 5 points The ability of water molecules to form hydrogen bonds with other water molecules and water's ability to dissolve substances that have charges or partial charges are _____. Selected Answer: both caused by water's partial charges Question 5 5 of 5 points The amount of heat required to change the temperature of 1 g of any substance by 1°C is defined as _____. Selected Answer:
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Unformatted text preview: the specific heat of that substance Question 6 5 of 5 points Water is a very versatile solvent because water molecules are_____. Selected Answer: polar Question 7 5 of 5 points The partial charges on a water molecule occur because of _____. Selected Answer: the unequal sharing of electrons between the hydrogen and the oxygen atoms of a water molecule Question 8 5 of 5 points Water molecules have _____ than molecules of similar size, such as ammonia and methane. Selected Answer: a higher boiling point Question 9 5 of 5 points Hydrophilic substances, but not hydrophobic substances, _____. Selected Answer: have charges and partial charges to which water molecules can adhere Question 10 5 of 5 points A glass of grapefruit juice, at pH 3, contains _____ H + as a glass of tomato juice, at pH 4. Selected Answer: ten times as much...
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biol 1201 quiz 2 - the specific heat of that substance...

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