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3 years ago

What molecules are found in all or almost all organic compounds?

Chemistry

2 answers:

klemol [59]3 years ago

5 0

D. carbon and hydrogen

Gnoma [55]3 years ago

4 0

Answer: The correct answer is Option d.

Explanation:

Organic compounds are defined as the compounds which are found in living organisms.

These compounds mainly consists of carbon atoms which are covalently bonded to hydrogen, oxygen and nitrogen atoms.

For Example: $C_{5}H_{11}O,HCN$

Both the compounds are organic compounds because carbon is bonded to nitrogen, oxygen and hydrogen atoms.

Main elements present in any organic compound are carbon and hydrogen.

Hence, the correct answer is Option d.

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What does expunge mean?

trasher [3.6K]

It means is where something is removed or erased completely or something unwanted or unpleasant.

Hope this helps and the right meaning of expunge.

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3 years ago

A student reports the following measurements for a set of pennies: 102.0mL, 91.0 g. What is the density of the pennies.

zysi [14]

Answer:

V = 102.0 ml

m = 91.0 ml

density = ...?

density = m / V

= 91.0 / 102.0

= 0.89215 g/ml

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3 years ago

How does Gregor Mendel's work with pea plants affect human life today? OA A. People continue to cross pea plants to fix Mendel's

lana [24]

Answer:

Explanation:

Not sure, but that one makes the most since

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3 years ago

Assuming that sea water is a 3.5 wt % solution of NaCl in water, calculate its osmotic pressure at 20°C. The density of a 3.5% N

olga nikolaevna [1]

Answer:

π = 14.824 atm

Explanation:

wt % = ( w NaCL / w sea water ) * 100 = 3.5 %

assuming w sea water = 100 g = 0.1 Kg

⇒ w NaCl = 3.5 g

osmotic pressure ( π ):

π = C NaCl * R * T

∴ T = 20 °C + 273 = 293 K

∴ C ≡ mol/L

∴ density sea water = 1.03 Kg/L....from literature

⇒ volume sea water = 0.1 Kg * ( L / 1.03 Kg ) = 0.097 L sln

⇒ mol NaCl = 3.5 g NaCL * ( mol NaCL / 58.44 g ) = 0.06 mol

⇒ C NaCl = 0.06 mol / 0.097 L = 0.617 M

⇒ π = 0.617 mol/L * 0.082 atm L / K mol * 293 K

⇒ π = 14.824 atm

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3 years ago

To what is wax susceptible

maks197457 [2]

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3 years ago