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Ahat [919]
3 years ago
11

Plz help will mark brainliest

Biology
2 answers:
WINSTONCH [101]3 years ago
5 0

Answer:

1 and 3 (b)

Explanation:

baherus [9]3 years ago
5 0

Answer:

I think the answer is 1 and 3, hopefully Im right!

Explanation:

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Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. Th
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Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. This is an example of how protein is used for maintaining fluid and electrolyte balance.

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8 0
2 years ago
1. Seahorses change color and swim together in predetermined ways before mating. These behaviors are called (1 point)
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7 0
3 years ago
How much 3M NaOH (MW=40) can be made from 10.0mL of a 10M solution?
vaieri [72.5K]

Explanation:

The given data is as follows.

              M_{1} = 3 M,           V_{1} = ?

              M_{2} = 10 M,         V_{2} = 10.0 ml

Therefore, calculate the volume of given solution as follows.

              M_{1} \times V_{1} = M_{2} \times V_{2}

Now, putting the given values into the above formula as follows.

            M_{1} \times V_{1} = M_{2} \times V_{2}

            3 M \times V_{1} = 10 M \times 10.0 ml    

                   V_{1} = 33.3 ml

or,                             = 0.033 L        (as 1 ml = 0.001 L)

Since, molarity of NaOH is given as 3 M and its volume is calculated as 33.3 ml.

           Molarity = \frac{\text{mass of solute}}{\text{molar mass of solute}} \times \frac{1}{\text{volume in L}}

               3 M = \frac{mass}{40 g/mol \times 0.033 L}

              mass = 3.96 g

Therefore, we can conclude that mass of NaOH is 3.96 g.

8 0
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