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3 years ago

What term refers to the coldest and densest zone, deep below the surface of a lake?

Chemistry

2 answers:

uranmaximum [27]3 years ago

5 0

Profundal

profundal zone is the coldest and deepest zone

goblinko [34]3 years ago

3 0

Answer: Hypolimnion

Explanation:

The hypolimnion layer is found in the dense region of lake. It is bottom layer of water in a thermally stratified lake.

This region has lowest oxygen concentration,and it lies below the thermocline.

It is the deepest and coldest layer found in lake. It has very less oxygen and maximum amount of sediments is also found there.

There reaches no light so photosynthesis id not possible there. The temperature there is almost 4 °C throughout the year.

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4.62 ) (a) Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 750 mL

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Answer:

a. [Na₂CrO₄] = 0.10 M

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Ag Silver [Kr] 4d10 5s1 (*)

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The transition elements or transition metals occupy the short columns in the center of the periodic table, between Group 2A and Group 3A.
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