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ira [324]
4 years ago
12

Which body systems help to exchange oxygen and carbon dioxide?

Chemistry
1 answer:
Temka [501]4 years ago
3 0
I believe it is A. Respiratory and digestive bcs it moves 2 gases which is oxygen and carbon dioxide and why digestive is bcs gas exchange so I figured it’s digestive bcs circulatory is a organ that permits blood
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Which three factors are most important in determining the composition of ocean water
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First factor: Density of water
This density of water is affected by the level of salt present in it. They are inversely proportional. This means that as the amount of salt in water increases (water becomes more salty), the density of water would decrease

Second factor: Temperature
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Third factor: Salinity
This factor helps in determining the amount of salt present in the ocean, i.e, concentration of salt in the water.

Hope this helps :)


4 0
3 years ago
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What two factors affect the force of friction?
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Roughness of the surface and weight of the object.
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3 years ago
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The electrons in the valence shell of many atoms do not leave the atom because the protons in the nucleus attract the electrons.
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Answer:

Electrons can flow from one atom to another

Explanation:

Fundamentally, opposite charges attract each other, while same charges repel each other. This implies that protons, positively charged species, would repel each other, while electrons, negatively charged species, would also repel each other.

There would be an attraction force between protons and electrons, on the other hand.

Metals tend to lose their electrons to non-metals to form positively charged ions, also known as cations. Non-metals gain these electrons to become negatively charged anions.

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What is the mass in grams of 366mL of ethylene glycol
pshichka [43]

Answer:

m=406.26g

Explanation:

Hello,

In this case, since the density is defined as the degree of compactness of a substance and it mathematically defined as the ratio of the mass and volume:

\rho = \frac{m}{V}

By knowing that its density is 1.11 g/mL, the mass in 366 mL is:

m=\rho V=366mL*1.11\frac{g}{mL}\\ \\m=406.26g

Regards.

6 0
4 years ago
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