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AysviL [449]
2 years ago
12

Which of the following most accurately describes a regulatory molecule that must be transported to its place of action within th

e body?
hormone

polypeptide

enzyme
Chemistry
1 answer:
Sonbull [250]2 years ago
5 0

Answer:

the answer is hormone

Explanation:

because it is

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A 20.0-ml sample of glucose Iv solution has a mass of 20.6g.what is the density of the glucose​
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Taking into account the definition of density, the density of the glucose is 1.03 \frac{g}{mL}.

<h3>What is density</h3>

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density of the glucose</h3>

In this case, you know that:

  • Density= ?
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Replacing in the definition of density:

density=\frac{20.6 g}{20 mL}

Solving:

<u><em>density= 1.03 </em></u>\frac{g}{mL}

In summary, the density of the glucose is 1.03 \frac{g}{mL}.

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A sample of air is slowly passed through aqueous Sodium hydroxide and then over heater copper.
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that's a hard one

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