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Mamont248 [21]
3 years ago
8

How many moles are in 2.0 grams of Na?

Chemistry
1 answer:
lisov135 [29]3 years ago
3 0

Answer:

46

Explanation:

Sodium metal has a molar mass of  

22.99

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I'm sad to announce that this will most likely be my last day on brainly until next year, and to all the friends I've made on he
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I know I never met you, but I'll miss you too. I hope you have a nice life. =)

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3 years ago
In the molecule SF4, sulfur makes four covalent bonds. Therefore, four of its six valence electrons need to be unpaired. The orb
Bezzdna [24]

Explanation:

As it is given that there are six electrons with four of them unpaired in the degenerate orbital.

As in a p-orbital there are only 3 sub-orbitals, that is, p_{x}, p_{y}, and p_{z}. In these sub-orbitals, a maximum of 6 electrons can be accommodated.

Th next higher orbital is d-orbital which can contain a maximum of 10 electrons. There are 5 degenerate orbitals present in a d-orbital.

So, a d-orbital can easily accommodate six electrons with four of them unpaired.

Thus, we can conclude that 5 degenerate orbitals are needed to contain six electrons with four of them unpaired.

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3 years ago
What descriptive term is applied to the type of diene represented by 2,4-hexadiene?.
Varvara68 [4.7K]

The descriptive term applied to the type of diene represented by 2,4-hexadiene is conjugated diene.

Dienes are compounds which contains two double bonds. These dienes can be non conjugated or conjugated.

Conjugated diene are those compound which have two double bonds  joined by a single σ bond. Conjugated dienes can also be called 1,3-diene. To know if diene is conjugated or non conjugated, sp³ hybridization is to b checked and the number of double bonds and single sigma bond is checked.

Conjugated dienes are found in many different molecules. 2,4-hexadiene is a conjugated diene with two carbon-carbon double bonds that are separated by one sigma bond.

The stabilization of dienes by conjugation is better than the aromatic stabilization. Conjugated dienes are more stable than non conjugated or cumulative diene because it has higher electron density of molecules delocalized.

To learn more about conjugated dienes,

brainly.com/question/24261651

#SPJ4

6 0
1 year ago
Which of these is NOT a physical change?
alexdok [17]

Answer:

C. Magnetization of iron

Explanation:

This is a chemical change and cannot be undone by physical means therefore it isn't a physical change

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Two groups complete an experiment requiring the mass measurement to be repeated three times in the experiment. Group I selects a
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Group 1 was more careful in choosing the person, whereas Group 2 might have been more careless. 
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