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viva [34]
3 years ago
11

Carbon, hydrogen, silicon, nitrogen, sulfur, and phosphorus are the six most important elements found in living things.

Chemistry
1 answer:
kap26 [50]3 years ago
8 0
<span>false

All organic compounds in nature have one molecule that is common in all of them, namely carbon.</span>An organic compound is any member of a large  group of compounds which may be gaseous, liquid, or solid that have molecules containing carbon.Organic compounds are the basis of earth's carbon cycle through  which biogeochemical  processes ensure that carbon moves from living to non living systems and back again.Examples of organic compounds include proteins, carbohydrates, lipids, nucleic acids, diamond and graphite.
<span> </span>
You might be interested in
An aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL with water and was found to have a speci
lapo4ka [179]

Answer:

<u>Optical purity = 76.9231 %</u>

<u>Specific rotation of mixture = - 97.6923 °</u>

Explanation:

The mass of the racemic mixture = 3 g

It means it contains R enantiomer = 1.5 g

S enantiomer = 1.5 g

Amount of Pure R = 10 g

Total R = 11.5 g

Total volume = 500 mL + 500 mL = 1000 mL = 1 L

[R] = 11.5 g/L

[S] = 1.5 g/L

Enantiomeric excess = \frac {Excess}{Total\ Concentration}\times 100 = \frac {11.5-1.5}{11.5+1.5}\times 100 = 76.9231 %

<u>Optical purity = 76.9231 %</u>

Also,

Optical purity = \frac {optical\ rotation\ of\ mixture}{optical\ rotation\ of\ pure\ enantiomer}\times 100

Optical rotation of pure enantiomer = −127 °

76.9231=\frac {optical\ rotation\ of\ mixture}{-127^0}\times 100

<u>Specific rotation of mixture = - 97.6923 °</u>

6 0
3 years ago
True or False: You can make a concentrated solution more dilute by adding solvent.
Vlad [161]
That statement is true because to make a diluted solution, you have to add more solvent than the solute in a concentrated solution. This is extra information, but to make a diluted solution more concentrated, you have to add more solute since a concentrated solution has an excess amount of solute as stated before.
6 0
3 years ago
Read 2 more answers
Atomic weight of lithium ?
LuckyWell [14K]

Answer:

6.941

Explanation:

5 0
3 years ago
Please only answer if you know the actual thing, don't search it up! Are these correct? :P
makkiz [27]

Hey buddy I am here to help!

1. C

2. A

3. A & B

4. C

5. C

6. A

7. A

8. A & C

Hope it helps!

Plz mark brainlist!

4 0
3 years ago
Read 2 more answers
Please help I need to correct I don't understand it
victus00 [196]
Answer is d. in hetrogeneous you can separate things from each other
4 0
3 years ago
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