3 years ago

Early people observed their surroundings and relied on...

Chemistry

2 answers:

Damm [24]3 years ago

6 0

Either instinct or observation

PolarNik [594]3 years ago

4 0

Each Other and the sun but now a days we relied on our phones

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How many moles would there be in 500,000,000,000 atoms of silver? Show your calculation

atroni [7]

Answer:

Answer: 3.01 * 10^35

Explanation:

500,000,000,000 * 6.02 * 10^23

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A flask contains the liquids trichloromethane (chloroform) and water. They are separated using a separating funnel, which conclu

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A. is the answer

Explanation:

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The atomic number of an atom is equivalent to which of the following?

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A is the correct answer i really hope this helps!

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Write balanced chemical equations for the sequence of reactions that oxalic acid can undergo when it's dissolved in water.

Mashcka [7]

Answer and Explanation:

The balanced chemical equations are as follows:

The chemical formula of oxalic is $H_2C_2O_4$

In the case when oxalic acts reacted with the water so here the oxalic acid eliminates one proton that leads to the development of mono acids

After that, the second step derives that when oxalic acid is in aqueous solution eliminates other proton so it represent the polyprotic acid

Now the chemical equations are as follows:

Elimination of one proton

$H_2C_2O_4(aq)+H_2O(l) \rightarrow H_2C_2O_4^-(aq) + H_3O^+(aq)$

Now the elimination of other proton

$HC_2O_4^-(aq)+H_2O(l) \rightarrow C_2O_4^2^-(aq) + H_3O^+(aq)$

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3 years ago

Draw every stereoisomer for 1,2-difluoro-1,2-dimethylcyclopentane. Use wedge-and-dash bonds for the substituent groups, and be s

Blizzard [7]

Answer:

See figure 1

Explanation:

In this question, we have to find first the chiral carbons on 1,2-difluoro-1,2-dimethylcyclopentane. Carbons 1 and 2. Then, using the Cahn–Ingold–Prelog priority rules. We can draw all the stereoisomers. If we have 2 chiral carbons we will have ( $2^n=2^2=4$ ) 4 isomers. With this in mind we can have the R,R isomer; the S,S isomer; the S,R isomer, and the R,S isomer. We have to remember that:

Priority 1 = "F"

Priority 2= "C"

Priority 3= "CH2"

Priority 4 = "CH3"

I hope it helps!

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3 years ago