Chemistry
Chemistry, 31.07.2019 15:30, spotty1023

Because of hydrogen bonding, select one: a. lakes freeze from the bottom up b. ice is less dense than liquid water c. ice sinks to the bottom of water d. liquid water is less dense than ice

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Biology, 25.06.2019 16:30, S28462182
Why are plants unable to grow at the bottom of lakes? a. the water is colder at the bottom. b. sunlight does not reach the bottom. c. groundwater feeds into the bottom. d. less fresh water is found at the bottom.
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Physics, 17.07.2019 06:00, tyresharichardson29
Because of hydrogen bonding, which of the following characteristics are seen in water? a. liquid water is denser than ice. b. ice floats on top of liquid water. c. ice sinks to the bottom of a lake. d. liquid water is less dense than ice.
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Geography, 01.08.2019 18:20, BrinkerSky8378
Did you know water is most dense at 4°c (39°f)? that is why lakes don't freeze to the bottom. if water was most dense at 32°f then lakes would freeze to the bottom in the winter. considering the density of water changes as its temperature changes, what percentage of sea level rise is from the expansion of sea water as its temperature rises (vs. melting glaciers)? question 14 options: 10% 20% 50% 70%
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Biology, 28.09.2019 23:00, rubiim9610
Water at about 4°c (39°f) is more dense than water at 0°c (32°f). why would the living organisms in the lake die if the water at the freezing point was denser than the water at 4°c? a)the water would freeze across the surface of the lake, blocking sunlight necessary for photosynthesis. b) the water would freeze across the surface of the lake, blocking the dissolving of oxygen and nutrients. c)the freezing water would sink before it could freeze, preventing the lake water from freezing. d)the freezing water would sink to the bottom and freeze the lake water from the bottom up.
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