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cluponka [151]
3 years ago
7

13 This word describes the circulatory system that provides nutrients and oxygen to living cells of the body.

Chemistry
1 answer:
Nina [5.8K]3 years ago
4 0

Answer: Cardiovascular System

Explanation:

This involves your heart, blood, veins, and arteries

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The answer is zero!

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A chlorine atom has a diameter of 175 picometers (pm). Please write the diameter, in metered, in scientific notation.
IrinaVladis [17]
The answer is 1.75 x 10¹⁰ m.
Scientific notation<span> refers to a mathematical expression that is  used to represent a decimal number between 1 and 10 multiplied by ten, or we can say that to write a large numbers using less digits. 
Diameter of chlorine atom = </span><span>175 picometers (pm) 
</span>175 pm = <span>0.000000000175 m
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8 0
3 years ago
What is the volume of 220 grams of an object with a density of 55g/cm square
AnnyKZ [126]
I'm assuming that you meant 55 g/cm^3. Density=\frac{Mass}{Volume}. This is the definition of density. If you rearrange this equation by multiplying each side of the equation by the volume, you get: (Density)(Volume)=Mass. Divide each side by the density to get: Volume=Mass/Density. Now just plug everything in:
V=220 (grams)/55 (grams/cm^3)=<u>4 cm^3</u>
4 0
3 years ago
Which statement is true about the relationship between entropy and spontaneity? O Spontaneous reactions tend to lead to higher e
dimulka [17.4K]

Answer:

The true statement is: Spontaneous reactions tend to lead to higher entropy.

Explanation:

The spontaneity of a reaction is linked to the value of Gibbs free energy (ΔG°). The more negative is this value, the more spontaneous is a reaction. At the same time, Gibbs free energy depends on enthalpy (ΔH°) and entropy (ΔS°), according to the following expression:

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3 0
2 years ago
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