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Savatey [412]
3 years ago
9

Where are plankton-eating fish most likely to live in a freshwater lake?

Biology
1 answer:
Basile [38]3 years ago
3 0
I think B. I hope this helps.
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Two solutions will be prepared with the mixture of distilled water and stock solution of KMnO4 (10 mM). Give the correct volumes
Yanka [14]

Answer:

See the answer below

Explanation:

<em>Recall that the law of dilution states that the number of moles before dilution must be equal to the number of moles after dilution.</em>

Mathematically,

     molarity x number of moles before dilution = molarity x number of moles after dilution.

For solution A: final molarity = 3 mM, final volume = 2mL, initial molarity of KMnO4 = 10 mM

Applying the equation:

    10 x initial volume = 3 x 2

        initial volume = 6/10 = 0.6

<u>Hence, Tube A should be made with 0.6 mL of 10 mM KMnO4 stock and  1.4 mL of distilled water to give a solution of 2 mL 3 mM KMnO4.</u>

For solution B:final molarity = 8 mM, final volume = 2 mL, initial molarity = 10 mM

    10 x initial volume = 8 x 2

       initial volume = 16/10 = 1.6

<u>Hence, Tube B should be made with 1.6 mL of 10 mM KMnO4 stock and 0.4 mL of distilled water to give a solution of 2 mL 8mM KMnO4. </u>

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3 years ago
A. new oceanic plates moving together
Neko [114]
C) hotspot because it is pushing up causing the lava to go up
5 0
3 years ago
Which of the following is NOT part of the Cell Theory?
castortr0y [4]

Answer:

3 it is 3 3333333333333

4 0
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What is the primary cause of respiratory distress syndrome (rds) of the newborn?
zhuklara [117]
The disease is mainly caused by a lack of a slippery substance in the lungs called surfactant. This substance helps the lungs fill with air and keeps the air sacs from deflating. Surfactant is present when the lungs are fully developed.

https://medlineplus.gov/ency/article/001563.htm
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3 years ago
Question 5
Goryan [66]
B migration, that is the answer
3 0
3 years ago
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