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sineoko [7]
2 years ago
11

Which of the following elements is represented by the above graphic​

Chemistry
1 answer:
kolezko [41]2 years ago
5 0

Answer:

Sulfur

Explanation:

Sulfur has 16 valence electrons, as shown in the diagram.

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This picture shows a desert environment, which is home to many lizards, small mammals, and cacti
kotykmax [81]

Answer:

A

Explanation:

If the Picture is a Desert showing reptiles like lizards and has cacti then it would be Dry and Sandy

5 0
2 years ago
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A sample of 19 mg of 9-fluorenone is dissolved in 5 mL of diethyl ether. The resulting organic
maks197457 [2]

Answer:

15.70mg would remain

Explanation:

Partition coefficient is used to extract or purify a solute from a solvent selectively to avoid interference from other substances. For the problem, formula is:

Kp = Concentration 9-fluorenone in ether / Concentration of solute in H₂O

After the solute, 9-fluorenone, is extracted with water, the mass that remains in ether is:

(19mg - X)

<em>Where X is the mass that now is in the aqueous phase</em>

Replacing in Kp formula:

9.5 = (19mg - X) / 5mL / (X /10mL)

0.95X = 19mg - X / 5mL

4.75X = 19 - X

5.75X = 19

X = 19 / 5.75

X = 3.30mg

That means 9-fluorenone that remain in the ether layer is:

19mg - 3.30mg =

<h3>15.70mg would remain</h3>
8 0
3 years ago
I WILL GIVE BRAINLIEST
creativ13 [48]

Answer:

i don get it

Explanation:i dont get it

4 0
2 years ago
How should students prepare to use chemicals in the lab?.
Serggg [28]

Answer:

Become familiar with the chemicals to be used, including exposure or spill hazards.

Locate the spill kits and understand how they are used.

Explanation:

Hope this helped! :)

6 0
2 years ago
Before the three-dimensional structure of DNA was discovered, scientists knew that DNA contained nitrogenous bases. The table be
katovenus [111]

Answer:

Complementary base pairing rules

Thymine 23

Guanine 27

Explanation:

Complementary base pairing rules state that adenine always pairs with thymine, and cytosine always pairs with guanine in a double stranded DNA helix This means that in a double stranded DNA molecule, there will be exactly the same amount of thymine as adenine, and exactly the same amount of guanine as cytosine. Therefore, there is 23% of thymine, and 27% of guanine

8 0
2 years ago
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