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Ksju [112]
3 years ago
9

Which element is always found in impure form

Chemistry
2 answers:
Bezzdna [24]3 years ago
7 0
C hydroyen
its aht plants breath

miskamm [114]3 years ago
7 0
C. HYDROGEN is the answer
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Radio waves travel at the speed of light which is 3.00 x 10^8. How many minutes does it take for a radio message to reach saturn
ryzh [129]

Answer:

43.89 min

Explanation:

Given that:-

The speed of light = 3.00\times 10^8\ m/s

The distance = 7.9\times 10^8\ km

The conversion of distance in km to distance into m is shown below as:-

1 km = 1000 m

So,

Distance = 7.9\times 10^8\times 1000\ m=7.9\times 10^{11}\ m

The relation between speed distance and time is shown below as:-

Speed=\frac{Distance}{Time}

Thus,

3.00\times 10^8=\frac{7.9\times 10^{11}}{Time}

300000000\times time=10^{11}\times \:7.9\ s

Time = 2633.33 seconds

Also, 1 s = 1/60 min

So,

Time=\frac{2633.33}{60}\ min=43.89\ min

3 0
3 years ago
Ap biology lab -what barriers might hinder the acquisition of plasmids
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8 0
3 years ago
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BRAINLIESTTT ASAP!!! PLEASE HELP ME :)
Afina-wow [57]

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4 Science result the truth while pseudoscience results the myth.

8 0
2 years ago
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The process where bacteria takes nitrogen out of the air and makes it usable for other organisms is called
Likurg_2 [28]

Answer:

The process is called Nitrogen fixation

Explanation:

The nitrogen fixation is a process carried out by some prokaryotic microorganisms (bacteria), specifically those have the presence of the nitrogenase enzyme. The bacteria absorb the atmospheric nitrogen (N2) from the roots of plants, and the nitrogenase enzyme, with the help of two proteins that act as electron donors and acceptors (nitrogenase complex) reduce the nitrogen to ammonia (NH3), then the ammonia is ionized to NH4+ (ammonium). Followed by that, the ammonia is oxidated to nitrates and nitrites, which are finally absorbed again by plants.

7 0
3 years ago
Draw two lewis structures for a compound with the formula c4h10. No atom bears a charge, and all carbon atoms have complete octe
DIA [1.3K]

Answer:

See pictures!

Explanation:

Here is a drawing of butane (C4H10); labeled #1. An isomer of butane will also have the chemical formula C4H10 but is depicted different geometrically. I labeled this one #2.

4 0
2 years ago
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