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Leto [7]
3 years ago
12

How many different sublevels are in the second energy level?2143​

Chemistry
1 answer:
Naddik [55]3 years ago
3 0

Answer:

The answer is 2

Explanation:

There are two energy sublevels in the second principal energy level. These two energy sublevels are 2s and 2p. The energy distribution in an atom is divided into a number of principal energy levels, and the principal energy levels are again divided into four basic energy sublevels.

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Answer choices are ..
Sauron [17]

Answer: D) nuclear fusion because an atomic nuclei combine to form a heavier nucleus

Explanation:

Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.

_1^2\textrm{H}+_1^3\textrm{H}\rightarrow _2^4\textrm{He}+_0^1\textrm{n}+\text{energy}

As in the given reaction a heavier nuclei helium is being formed from combination of deuterium and tritium, this is a nuclear fusion reaction.

5 0
4 years ago
Read 2 more answers
HELP ASAP PLZ the first person whole answers correctly willl get 5 starts
Andrei [34K]

Substance A is chlorophyll and Substance B is oxygen

4 0
4 years ago
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What % is 16 out of 20?<br> Is it REALLY 80%???
marshall27 [118]
Yes, it is 80%. Hope this helps!
7 0
4 years ago
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Lead has a density of 11.3 g/mL. If you have 105 grams of lead,
Elza [17]

Answer:

<h2>Volume = 9.29 mL</h2>

Explanation:

Density of a substance can be found by using the formula

Density( \rho) =  \frac{mass}{volume}

From the question

Density = 11.3 g/mL

mass = 105 g

Substitute the values into the above formula and solve for the volume

That's

11.3 =  \frac{105}{v}

Cross multiply

11.3v = 105

Divide both sides by 11.3

v =  \frac{105}{11.3}

v = 9.29203

We have the final answer as

<h3>Volume = 9.29 mL</h3>

Hope this helps you

6 0
3 years ago
How can you cause a physical change
KATRIN_1 [288]
Examples of Physical Changes<span>crushing a can.melting an ice cube.boiling water.mixing sand and water.breaking a glass.dissolving sugar and water.shredding paper.<span>chopping wood.</span></span>
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