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Volgvan
3 years ago
14

Which substance is a compound?

Chemistry
2 answers:
ExtremeBDS [4]3 years ago
6 0

water and nitrogen.  

svetlana [45]3 years ago
5 0
The answer for the first question would be water. It is the substance that is a compound since it is made up of different elements. For the second item, i think the best answer is phosphorus and nitrogen. They are the limiting nutrients. For the last item, the correct answer is reservoirs.
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34.969amu)(0.7577) =<br> (36.966amu)(0.2423)
Natasha_Volkova [10]

Answer:

26.4960 is the answer for the first one

8.9569 is the answer for the second one

3 0
3 years ago
. The ring shape of the Cartwheel Galaxy is due to:
dlinn [17]

The ring shape of the Cartwheel Galaxy is due to collisions with another galaxy.

<h3>What causes the ring shape of the Cartwheel Galaxy?</h3>

The unusual shape of the Cartwheel Galaxy is due to a collision with a smaller galaxy. The recent star burst has lighted up the Cartwheel rim which has a diameter larger than that of the Milky Way galaxy in which our planet exists. The Cartwheel Galaxy is a lenticular ring galaxy which is about 500 million light-years away. This galaxy was discovered by Fritz Zwicky in the year 1941.

So we can conclude that the ring shape of the Cartwheel Galaxy is due to collisions with another galaxy.

Learn more about galaxy here: brainly.com/question/13956361

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7 0
1 year ago
Material from an environmental study was suspected to contain the banned pesticide, Aldrin, of which you have a pure sample. Gas
Anna35 [415]

Answer:

In order  to determine unequivocally which of the peaks represent Aldrin, I would run the pure sample through the chromatography equipment.

Explanation:

Gas chromatography is a technique that separates molecules based on their volatility and interaction with both the stationary phase.

The peaks on the chromatogram show how long a substance took to leave the column. Since each different substance substance will leave the column at a different time, each peak can be attributed to a substance.

Therefore, to know which of the 6 peaks represent Aldrin, it is necessary to run the pure Aldrin in the chromatography equipment and see the time of the peak. Then you just need to compare both chromatograms and indentify Aldrin.

7 0
3 years ago
Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in the cytoplasm. This observation
True [87]

Answer:

The answer is the B. Proteins

Explanation:

It is known that Ribosomes are the factory to synthesize proteins. This is their function.  In cell zones where ribosomes are abundant, proteins are actively produced

3 0
3 years ago
Freezing point of carbon dioxide a.meter b.liter c.kilogram d.kelvin
Orlov [11]

The Freezing point is ALWAYS the same as the melting point,even for different elements. 6,422 is its melting,and freezing point. Same with gold,iron,hydrogen,and many others

7 0
3 years ago
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