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Marianna [84]
3 years ago
14

A jewelry company has announced that they have created gold from reacting copper and carbon in a chemical process. according to

dalton's atomic theory, is this possible?
Chemistry
1 answer:
IgorLugansk [536]3 years ago
6 0
<span>No John Dalton made a fairly fundamental description of an atomic theory that still holds today for chemistry. In his theory, there are 4 things to consider 1. All matter is made of atoms, and atoms are indivisible and indestructible. * This right there makes the process described in the question impossible since the described process would require the destruction of copper and carbon, which is in violation of the first element of Dalton's theory. 2. All atoms of a given element are identical in mass and properties. 3. Compounds are formed by a combination of two or more different kinds of atoms. 4. A chemical reaction is a rearrangement of atoms. * This also is in conflict with the process described in the question. Since the process is described as chemical, that eliminates nuclear methods just as fission, or fusion. Now the spirit of the theory remains true, but modern knowledge does make the details different. For instance, we know of isotopes, so #2 isn't strictly true any longer. We also know of nuclear reactions so #1 isn't completely true either. But in general, his theory is as useful today as it was two hundred years ago.</span>
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A. They have similar DNA
6 0
3 years ago
Read 2 more answers
1. Draw a wedge/dash structure for trans-1,2-dimethylcyclohexane.
Angelina_Jolie [31]

Answer:

The structure with the ring flipped is the most stable

Explanation:

We have the  trans 1,2 - dimethylcyclohexane. With the wedge/dash structure we could not figure is this form is stable (If we do a comparison with the cis structure). But when we do a chair structure and ring flipped structure, this is easier to look.

The picture attached shows the structures, they are labeled as 1, 2 and 3, according to this problem.

In the chair structure, according to the picture below, you can see that both methyls are heading in the axial positions of the ring (One facing upward and the other downward). This is pretty stable, however, when the methyls are in those positions, the methyl position 1, can undergoes an 1,3 diaxial interactions with the hydrogens atoms (They are not drawn, but still are there), so this interaction makes this structure a little less stable that it can be.

On the other side, the ring flipped structure, we can see that both methyls are in the equatorials positions of the ring, and in these positions, it can avoid the 1,4 diaxial interactions with the hydrogens atoms, making this structure the most stable structure.

Hope this helps

6 0
3 years ago
What is the molarity of a 9.13 L soda that contains 13.83 of sugar?
choli [55]

Answer:

1.52 M

Explanation:

Molarity of a solution is calculated as follows:

Molarity = number of moles (n) ÷ volume (V)

Based on the information given in this question,

Volume of soda (V) = 9.13 L

number of moles = 13.83 mol

Molarity = 13.83 ÷ 9.13

Molarity = 1.52 M

7 0
3 years ago
what is the order of decreasing bond length for a C-C bond composed of the following molecular orbitals?I. sp^3 - sp^3II. sp^2 -
skelet666 [1.2K]

Answer:

The decreasing order of bond length in the carbon - carbon bonds will be:

C-C>C=C>C\equiv C

Explanation:

Bond length is defined as average distance between two nuclei of  bonded atoms in a molecule.Bond length is inversely  proportional to the number of bonds present between two atoms.

\text{Bond length} \propto \frac{1}{\text{Number of bonds}}...[1]

Bond energy is defied as amount of energy required to break apart the bond of 1 mole of molecule into their individual atom. Bond energy is directly proportional to the number of bonds present between two atoms.

\text{Bond Energy} \propto \text{Number of bonds}..[2]

From [1] and [2]:

\text{Bond length} \propto \frac{1}{\text{Bond energy}}

C-C: sp_3 hybridized

C=C: sp_2 hybridized

C\equiv C: sp hybridized

Extent of overlapping of orbitals in these hybridization;

C\equiv C> C=C > C-C

Higher the overlapping of orbital more closer will be both atoms to each other and shorter will be the bond lenght.

So, the decreasing order of bond length in the carbon - carbon bonds will be:

C-C>C=C>C\equiv C

8 0
3 years ago
Which solution is the least concentrated?
lora16 [44]

Answer:

Which solution is the least concentrated?

O 2 moles of solute dissolved in 4 liters of solution

O 1 mole of solute dissolved in 4 liters of solution

4 moles of solute dissolved in 6 liters of solution

6 moles of solute dissolved in 4 liters of

5 0
3 years ago
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