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Cerrena [4.2K]
3 years ago
6

Which role of water is significant for most living things in a biological system?a. It prevents many life processes from occurri

ng.b. It slows down the transportation of nutrients.c. It provides temperature regulation.d. It does not freeze in cells at very cold temperatures.
Chemistry
2 answers:
Sedaia [141]3 years ago
6 0
I am pretty sure the correct answer is C.  Water has large heat capacity meaning it can absorb a lot of energy before changing temperature.  That helps the body regulate heat since it can be exposed to different environments and experience small temperature changes.

I hope this helps.  Let me know if anything is unclear.
ad-work [718]3 years ago
3 0

Answer:

The answer is C!

Explanation:

I took the test ;)

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Random particle motion in liquids and gases is a difficult concept for in temperature, the particles move faster as they gain kinetic energy.

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A certain electrolyte solution contains 1 gram of salt for every 8 grams of sugar and every 200 grams of water. If the sugar to
12345 [234]

Answer:

The resulting solution contains approximately 666 g of water.

Explanation:

In the initial solution we have:

1g salt : 8g sugar : 200g water

This means that the ratios are:

\frac{salt}{sugar}  = \frac{1}{8} \\\\\frac{sugar}{water} = \frac{8}{200} =\frac{1}{25}

In the final solution we have:

5g salt: xg sugar: yg water

The new ratios are:

\frac{salt}{sugar} = \frac{3}{8} \\\\\frac{sugar}{water} = \frac{1}{50}

Now we can calculate the amount of sugar in the final solution:

\frac{salt}{sugar}  = \frac{5}{x} =\frac{3}{8} \\\\X = 13.333 g

Finally, we calculate the amount of water:

\frac{sugar}{water} = \frac{13.333}{y} = \frac{1}{50} \\y = 666.667 g

4 0
3 years ago
This is the chemical formula for methyl acetate: CH32CO2. Calculate the mass percent of hydrogen in methyl acetate. Round your a
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<u>Answer:</u> The mass percent of hydrogen in methyl acetate is 8 %

<u>Explanation:</u>

The given chemical formula of methyl acetate is CH_3COOCH_3

To calculate the mass percentage of hydrogen in methyl acetate, we use the equation:

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Mass of methyl acetate}}\times 100

Mass of hydrogen = (6 × 1) = 6 g

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Putting values in above equation, we get:

\text{Mass percent of hydrogen}=\frac{6g}{74g}\times 100=8.10\%=8\%

Hence, the mass percent of hydrogen in methyl acetate is 8 %

8 0
3 years ago
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