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Evgesh-ka [11]
2 years ago
12

Which vein carries oxygenated blood back into the heart?

Chemistry
2 answers:
Svetach [21]2 years ago
8 0

Answer:

The veins that carry oxygenated bloof back into the heart are the pulmonary arteries.

Explanation:

Finger [1]2 years ago
6 0

Answer:

The veins that carry oxygenated bloof back into the heart are the pulmonary arteries.

Explanation:

Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

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There is an error in the rate-determining step of the following proposed mechanism.
yulyashka [42]

Answer:

The steps with correct mechanism are given below:

C

1) CH₄(g) + Cl(g) → CH₃(g) + HCl(g) : This is a slow step.

The rate is given as: R1 = k₁[CH₄][Cl]  

2) CH₃(g) + Cl₂(g) → CH₃Cl(g) + Cl(g): This is a fast step.

The rate is given as: Rate = k₂[CH₃][Cl₂]  

∴ CH₄(g) + Cl₂(g) → CH₃Cl(g) + HCl(g)

Here, the slowest step will be the rate-determining step.

5 0
3 years ago
How would the freezing point of seawater compare with that of pure water?
astraxan [27]
Freezing Point of Sea water would be lower than that of Pure Water. It is because of salinity of the water

Hope this helps!
6 0
3 years ago
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What is the lightest particle in the following 1)electron 2)proton 3)neutron 4)photon
Anuta_ua [19.1K]

Answer:

1) Electron

Explanation:

It carries a negative charge of 1.602176634 × 10−19 coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836the mass of a proton.

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If you could place a piece of solid silver into a container of liquid silver, would it float or sink? Explain your answer.
8_murik_8 [283]
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