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Klio2033 [76]
3 years ago
13

Which statement highlights a unique role of water in a biological system

Chemistry
1 answer:
expeople1 [14]3 years ago
4 0
The statement that has a places of interest in the unique role of water in a biological system is that water provides organisms a medium to transport materials. A transport system is describing by which materials are stimulated or transport from an interchange surface or altercation surfaces to cell situated entirely over the organism. The medium used in transport is water based which comprises materials including the various size and shapes of molecules that can be carried out. The water stands as a solvent for an extensive range of substances and runs simply at the temperatures of living organisms and plants. An examples of transport in animal transport systems consist of blood, lymph and hemolymph. . 
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If a lab requires each lab group to have 25ml of a solution and it takes 15 grams of CuNO3 to make 1 liter of solution how many
tino4ka555 [31]

We need to do some general algebra here.

We will find that you need 8.25 grams of CuNO₃ to make enough solution for the 22 labs.

<em>We know that:</em>

  • Each lab group needs 25 ml of solution.
  • it takes 15 g of CuNO₃ to make one L of that solution.
  • There are 22 labs.

Because each lab needs 25 ml of solution, 22 labs will need that amount 22 times, so the <u>total amount of solution needed</u> is:

22*25ml = 550 ml

Now we know that we need 15 grams to make one liter of solution, and:

1 L = 1000ml

Then you need 15g to make 1000ml

and x (we want to find this amount) to make 550ml

Then we can write two equations (not actual equations, as these are different units) like:

x = 550ml

15g = 1000ml

Now we can take the quotient between these two equations:

x/15 g = (550ml/1000ml)

And now we can solve this for x:

x = (550ml/1000ml)*15g = 8.25g

So you need 8.25 grams of CuNO₃ to make enough solution for the 22 labs.

If you want to learn more, you can read:

brainly.com/question/8743486

5 0
2 years ago
What is the density of a substance that has a mass of 453g and a volume of 224mL?
Savatey [412]
453 divided by 224
density is roughly 2.02 g per ml
as a ml is 1 cm3 density is 2.02 grams per centimeter cubed
7 0
3 years ago
A cylinder of argon contains 50 L of Ar at 12.4 atm and 127°C . How many moles of argon are in the cylinder
joja [24]

Answer:

18.9 moles

Explanation:

We have the following data:

V = 50 L

P = 12.4 atm

T= 127°C + 273 = 400 K

R = 0.082 L.atm/K.mol (it is the gas constant)

We use the ideal gas equation to calculate the number of moles n of the gas:

PV = nRT

⇒ n = PV/RT = (12.4 atm x 50 L)/(0.082 L.atm/K.mol x 400 K) = 18.9 mol

6 0
3 years ago
Classify the following compounds as binary ionic, ternary ionic, or molecular.
Alborosie

Answer:bro u already have an answer why are you asking?

Explanation:

3 0
3 years ago
If an atom has 5 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?
AysviL [449]

5 protons, 5 neutrons

5 0
2 years ago
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