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nata0808 [166]
4 years ago
15

What chemical element did hennig brand discover and what was he boiling down when he discovered it

Chemistry
1 answer:
lbvjy [14]4 years ago
8 0
Hennig Brand discovered Phosphorus while he was boiling Urine to produce gold.
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A student assisting with the experiment would observe all of the following about the electron transport chain EXCEPT:A. Electron
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C. All electron carriers are mobile and hydrophobic

Explanation:

Hello,

In this case, it is widely known that the electron carriers move inside the inner mitochondrial membrane and consequently move electrons from one to another. In such a way, they are mobile, therefore they are largely hydrophobic as long as they are inside the membrane.

For instance, the cytochrome c is a water-soluble protein in a large range, therefore, the answer is: C. All electron carriers are mobile and hydrophobic.

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4 years ago
(c) O2 gas is transferred from a 3 L vessel containing oxygen at 4 atm to an evacuated 20 L vessel at a constant temperature of
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Answer:

After the transfer the pressure inside the 20 L vessel is 0.6 atm.

Explanation:

Considering O2 as an ideal gas, it is at an initial state (1) with V1 = 3L and P1 = 4 atm. And a final state (2) with V2 = 20L. The temperature remain constant at all the process, thus here applies the Boyle-Mariotte law. This law establishes that at a constant temperature an ideal gas the relationship between pressure and volume remain constant at all time:

P x V = k

Therefore, for this problem the step by step explanation is:

P_{1} xV_{1} = P_{2} xV_{2}

Clearing P2 and replacing

P_{2}= \frac{P_{1} xV_{1}}{V_{2} } = \frac{4atmx3L}{20L} = 0.6atm

7 0
3 years ago
What gas is used in respiration​
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Answer:

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La función del aparato respiratorio es mover dos gases: <em>el oxígeno y el dióxido de carbono</em>

Explanation:

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what is the consequence on your brain for snorting or taking amphetamines(meth/stimulant) as a 16 year old(minor)?
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There are many consequences!

Some being:

* ADDICTION

* HEALTH ISSUES

* MENTAL ISSUES

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3 years ago
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