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podryga [215]
4 years ago
5

Which statement about electrons and atomic orbitals is not true? A. An electron has the same amount of energy in all orbitals. B

. An orbital can contain a maximum of two electrons. C. An electron cloud represents all the orbitals in an atom. D. An atom’s lowest energy level has only one orbital.
Chemistry
2 answers:
ryzh [129]4 years ago
6 0
The answer to this is c
erastovalidia [21]4 years ago
4 0
The answer is a....try it..
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Answer:

A star begins its life as a cloud of dust and gas (mainly hydrogen) known as a nebula. A protostar is formed when gravity causes the dust and gas of a nebula to clump together in a process called accretion. ... If a critical temperature in the core of a protostar is reached, then nuclear fusion begins and a star is born.

Explanation:

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3 years ago
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What is a paper clip, a colloid? solution? or a suspension?
Galina-37 [17]

Explanation:

a colloid is a nonuniform mixture of a solute and a solvent in which the particles are permanently suspended.

solution is a uniform mixture of a solute and a solvent.

suspension is a nonuniform mixture of a solute and a solvent in which the particles are temporary suspended

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3 years ago
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A student weighed out a sample of acid powder and found the mass to be 1.42 g. When the solution turned pink, the student read t
aalyn [17]

Answer:

306.6g/mol

Explanation:

To calculate molecular weight you need to know how many grams ou have in a determined amount of moles of substance. As you have the mass of the sample (1.42g), you need to find how many moles are, as follows:

The reaction of the acid HX with the base YOH is:

HX + YOH → H₂O + YX

<em>1 mole of acid reacts per mole of base.</em>

<em />

In a titration, the solution turned pink when moles base = moles acid.

Moles of base that the student added (Using the volume and molarity of the solution) are:

32.48mL = 0.03248L ₓ (0.1426 moles base / L) = 0.004632 moles of base

As the titration is in equivalence point, there are 0.004632 moles of the acid

Molecular weight (Ratio between grams of sample and its moles) is:

1.42g / 0.004632 moles =

<h3>306.6g/mol</h3>
5 0
4 years ago
The Density of this log is 1.75g/cm3. If we cut this log in half, what is the density of the log? Make sure to show your work an
swat32

Answer:

The density remains the same

Explanation:

The density remains the same because cutting the object in half will divide the mass & volume by the same amount. The density cant be changed no matter what happens to it.

5 0
4 years ago
This is due at 12am HELP!!
Lisa [10]

Answer:

I have the same

Explanation:

like I have the same homework as you are u in my class lol?

4 0
3 years ago
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