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Vlad [161]
2 years ago
11

How are the digestive system and the urinary system similar?

Chemistry
1 answer:
Olenka [21]2 years ago
4 0

Answer:

While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine. They are closely connected in controlling the amount of water in your body.

Explanation:

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What is the new temperature when 10 L at 5 K is compressed to 4.00 L
lina2011 [118]

Answer: C

Explanation:

For this problem, we would use Charles's Law. We fill in what we are given and solve.

Charles's Law: \frac{V_{1} }{T_{1} } =\frac{V_{2} }{T_{2} }

\frac{10 L}{5K} =\frac{4.00L}{T_{2} }

10T_{2}= 20

T_{2}=2K

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3 years ago
Which of the following statements is not true regarding physical properties and changes?
ratelena [41]
I think it is B, but i am not sure
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Region where electrons are located within an atom, what is it??
Nady [450]

Answer:

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2 years ago
Describe how you would prepare your assigned ester from a carboxylic acid and an alcohol. You do not need to include a detailed
vesna_86 [32]

Answer:

The general preparation of esters( for example ethyl ethanoate) is through a process known as ESTERIFICATION.

Explanation:

The formation of an ester by the reaction between an alkanol and an acid is known as esterification. This reaction is extremely slow and reversible at room temperature, and is catalyzed by a high concentration of hydrogen ions.

In the preparation of one of the simpler esters known as ETHYL ETHANOATE the reactants include ethanol(an alcohol) and glacial ethanoic acid(a carboxylic acid) in the presence of concentrated tetraoxosulphate VI acid as a CATALYST. Note that, a catalyst is any substance that is able to increase the rate of a chemical reaction.

The mixture is warmed in a water bath( hot but not boiling) for about 25 minutes. The mixture is poured into a beaker partially filled with a sodium or calcium chloride to remove interacted ethanol. The ethyl ETHANOATE floats on the mixture as oily globules.

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2 years ago
Name the 3 subatomic particles with their respective charges
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Answer:

Protons, neutrons, and electrons are the three main subatomic particles found in an atom.

Explanation:

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