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AVprozaik [17]
3 years ago
13

All molecules are compounds True or false

Chemistry
1 answer:
Harrizon [31]3 years ago
4 0

False (All compounds are molecules, but not all molecules are compounds. That is because a molecule can be made up of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms.)

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47526 to the nearest 10​
german

Answer:

47530 is the nearest 10 to 47526

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3 years ago
Whrite thease phusical propartes of acid and base​ <br>please its urgent
AnnyKZ [126]

Explanation:

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6 0
2 years ago
What is the percentage of hydrogen in c2h4
jarptica [38.1K]

Ethylene- C2H4 = 85.7% Carbon and 14.3% Hydrogen


Find the atomic masses for each element and multiply it by the number of atoms in the compound, then add.


C- 12.0 * 2= 24.0


H- 1.00 * 4= 4.00


-----------------------


28.0


Take the masses for each element and divide it by the total mass. Then change the answer to get the percent.


C 24.0 / 28.0= .857 = 85.7%


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<h3>Ethylene is 85.7% Carbon and 14.3% Hydrogen </h3>
8 0
3 years ago
In the 1800s, a popular belief known as vitalism stated that life processes could not be explained by the laws of physics and ch
soldi70 [24.7K]

The question is incomplete, the complete question is;

In the 1800s, a popular belief known as vitalism stated that life processes could not be explained by the laws of physics and chemistry,and were instead dictated by an independent life force. Which discovery most likely caused scientists to revise this hypothesis regarding the origin of life on Earth?

a. that inorganic compounds existed within live organisms

b. that organic compounds could be synthesized in a laboratory

c. that RNA could serve as a template to synthesize DNA

d. that self-replicating molecules existed inside cells

Answer:

b. that organic compounds could be synthesized in a laboratory

Explanation:

Vitalism is the belief that "living organisms are fundamentally different from non-living entities because they contain some non-physical element or are governed by different principles than are inanimate things"(wikipedia).

This theory held that the molecules involved in life processes could not be synthesized in the laboratory.

All these were upturned after Fredrich Whöler's synthesis of urea in 1828. He was able to show that molecules involved in life process can also be synthesized in the laboratory. This gave rise to modern synthetic organic chemistry.

6 0
3 years ago
What happens when a current is applied to two electrodes immersed in pure water?
frosja888 [35]
Nothing at all happens because pure water cannot conduct electricity
7 0
3 years ago
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