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3 years ago

The nucleus of one lithium atom has three protons and four neutrons. what is the total charge of the lithium nucleus.

Chemistry

2 answers:

Xelga [282]3 years ago

6 0

Since protons are postive and neutrons are neutral. Then it is postive.

bagirrra123 [75]3 years ago

3 0

I think it would be one as the total charge since the protons and neutrons cancel out each other, leaving one neutron. The other option is that it totals out causeing their to be a larger charge which would be 7.

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Can i has help?

Lerok [7]

Answer:

water, lead, and wood

Explanation:

All are correct on Edg 2020

3 0

2 years ago

Read 2 more answers

Structures of compounds people use every day are shown. From which group of unsaturated hydrocarbons is each derived? 2 carbons

Savatey [412]

The group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from Alkenes

<h3>What are organic compounds?</h3>

Organic compounds are compounds which contains carbon and hydrogen

Some few classes or organic compounds or hydrocarbons are as follows:

Alkanes
Alkenes
Alkynes
Alkanols
Alkanoic acid
Ketones
Esters

So therefore, the group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from Alkenes

Learn more about organic compounds:

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1 year ago

In which of the following compounds does the carbonyl stretch in the IR spectrum occur at the lowest wavenumber?

klio [65]

Answer:

a. Cyclohexanone

Explanation:

The principle of IR technique is based on the vibration of the bonds by using the energy that is in this region of the electromagnetic spectrum. For each bond, there is a specific energy that generates a specific vibration. In this case, you want to study the vibration that is given in the carbonyl group C=O. Which is located around 1700 cm-1.

Now, we must remember that the lower the wavenumber we will have less energy. So, what we should look for in these molecules, is a carbonyl group in which less energy is needed to vibrate since we look for the molecule with a smaller wavenumber.

If we look at the structure of all the molecules we will find that in the last three we have heteroatoms (atoms different to carbon I hydrogen) on the right side of the carbonyl group. These atoms allow the production of resonance structures which makes the molecule more stable. If the molecule is more stable we will need more energy to make it vibrate and therefore greater wavenumbers.

The molecule that fulfills this condition is the cyclohexanone.

See figure 1

I hope it helps!

4 0

3 years ago

What is evidence when mixing sugar into water

Tems11 [23]

That water is a universal solvent and that sugar is soluble?

3 0

3 years ago

The adult blue whale has a lung capacity 5.0\times10^3 5.0 Ã 10 3 l. calculate the mass of air (assume an average molar mass of

Andre45 [30]

For this item, we need to assume that air behaves like that of an ideal gas. Ideal gases follow the ideal gas law which can be written as follow,
PV = nRT
where P is the pressure,
V is the volume,
n is the number of mols,
R is the universal gas constant, and
T is temperature

In this item, we are to determine first the number of moles, n. We derive the equation,
n = PV /RT
Substitute the given values,

n = (1 atm)(5 x 10³ L) / (0.0821 L.atm/mol.K)(0 + 273.15)
n = 223.08 mols

From the given molar mass, we calculate for the mass of air.
m = (223.08 mols)(28.98 g/mol) = 6464.9 g

ANSWER: 6464.9 g

8 0

3 years ago