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amm1812
3 years ago
8

?

Chemistry
2 answers:
larisa [96]3 years ago
4 0
DNA forms a double helix; RNA consists of a single strand.
sashaice [31]3 years ago
3 0
I think it's DNA forms a double helix and RNA consists a single strand.
I may be wrong...
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In the formula for the compound XCl4, the X could represent<br> (1) C (3) Mg<br> (2) Η (4) Zn
Anvisha [2.4K]
Correct Answer: option 1 i.e. C

Reason: 
The the compound of interest i.e.  XCl4, since there are 4 Cl atoms bonded to X. This signifies that the valency of X is 4.

There atomic number of C is 6. It's electronic configuration is giving by 1s2 2s2 2p2. Thus, there are 4 electrons in valence shell of C. This signifies that valency of C is 4. Hence the compound present in present case is CCl4.
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Which of the following best describes the solar radiation absorbed by and radiated from earth?
FinnZ [79.3K]

Answer:

the answer that you are looking for is d

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Find the number of moles of water that can be formed if you have 182 mol of hydrogen gas and 86 mol of oxygen gas.
frutty [35]
Water has a chemical formula of H2O. This means that for every 2 moles of hydrogen and 1 mole of oxygen, one mole of water will be formed.

Note that hydrogen gas and oxygen gas are both biatomic molecules. 

 (1)                   (182 mol H2) x (1 mol H2O/ 1 mol H2) = 182 mol H2O
 (2)                   (86 mol O2) x (2 mol H2O / 1 mol O2) = 172 mol H2O

We choose the smaller number of the two as the answer to this item. Thus, the answer to this question is 172 mol of H2O can be formed out of the given quantities. 
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What instrument us normally used to measure atmospheric pressure
Anika [276]
The answer is Barometer.
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Would the following configuration represent
makvit [3.9K]

Answer:

Excited state

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