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murzikaleks [220]
3 years ago
8

An atom of nitrogen has several protons in its nucleus. How many electrons does it have

Chemistry
1 answer:
Semenov [28]3 years ago
4 0
It has 7 electrons, 7 protons and 7 neutrons
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Which is a characteristics of all ions
Sholpan [36]

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All ions must a overall charge

Explanation:

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How much energy was lost in the total process illustrated? Please Help
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30%

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What is happening when an oxygen molecule is formed from two separate oxygen atoms?
antoniya [11.8K]

Answer:

They form a double bond

Explanation:

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3 years ago
A compound with molecular formula C5H10O2 has the following 1H NMR spectrum: 1.15 (t, 3H), 1.25 (t, 3H), 2.33 (q, 2H), 4.13 (q,
Vilka [71]

Answer:

Ethyl propionate

Explanation:

Calculating the double bond equivalence as:

DBE =  C - (H/2) - (X/2) + (N/2) +1

Where  

C is the number of carbon atoms

N is the number of nitrogen atoms

X is the number of halogens

H is the number of hydrogen atoms

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from the NMR signal, it is clear that compound has two triplet and two quardrate group that means two -CH3 and two -CH2 groups are present.

From the splitting information, it is clear that each the -CH2- group is next to a -CH3, and vice-versa. In this case ring structure is not possible.

The chemical shift of two protons 4.13 ppm(q, 2H) is for protons next to an O atom, therefore, compound must have

-OCH_2CH_3.

Then the signal at 2.33 is for a -CH2-group next to a C=O. So compound must have a structure CH3-CH2-C=O. Now, there is only one way to complete the structure - by bonding the O to the C=O carbon.

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3 0
3 years ago
Which number should be placed before H20 on the products side of the equation to
timama [110]
<h2>The required balanced equation:</h2><h2>C_3H_8 +5O_2 = 3CO_2 + 4H_2O</h2>

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Add 4 as a coefficient before on L.H.S (Left Hand Side) of Equation.

• Therefore, the required balanced equation is:

Propane, when added with 5 molecules of Water, yields 3 molecules of Carbon Dioxide and 4 molecules of water, as shown in the below equation -

C_3H_8 +5O_2 = 3CO_2 + 4H_2O

8 0
3 years ago
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