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klasskru [66]
3 years ago
12

The quantum mechanical model states that

Chemistry
2 answers:
MariettaO [177]3 years ago
7 0
The quantum mechanical model of the atom users complex shapes or orbitals { Sometimes called Electron Clouds }, volumes of space in which there is likely to be an electron. So, this model is based on probability rather then certainty. Hope that helps
sergeinik [125]3 years ago
5 0
<span>The quantum mechanical model of the atom uses complex shapes of orbitals (sometimes called electron clouds), volumes of space in which there is likely to be an electron. So, this model is based on probability rather than certainty.</span>
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What is first and second element of the periodic table?
stira [4]
The elements on the periodic table are listed in increasing atomic number. 

Hydrogen is the first element, and has an A.N. of 1. Also, its very interesting how it doesn't need 8 valence electrons to be stable. 

The second element is Helium, which has an A.N (atomic number) of two. 
7 0
4 years ago
Read 2 more answers
What is the density at 20 degrees Celsius of 12.0 mL of a liquid that has a mass of 4.05g?​
zmey [24]

Answer:

<h3>The answer is 0.34 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{4.05}{12}  \\  = 0.3375

We have the final answer as

<h3>0.34 g/mL</h3>

Hope this helps you

5 0
3 years ago
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A non-metallic atom(at.no. 9) forms a molecule of the same,containing a single covalent bond. give reason
bezimeni [28]
They are so may forms
4 0
3 years ago
Please indicate which of the compounds will yield postive results for the permanganate, ninhydrin, and ceric ammonium nitrate te
maks197457 [2]

The compounds will yield Positive results for the permanganate, ninhydrin, and ceric ammonium nitrate tests  are

permanganate test= ethene,

ninhydrin=aspasyic acid Phenylalanine

ceric ammonium nitrate test= methanol

<h3>What is a compound?</h3>

Generally, A compound is simply defined as a substance made up of two or more different chemical elements held together by chemical bonds that are difficult to break.

In conclusion, For the permanganate test= ethene,

ninhydrin=aspasyic acid Phenylalanine

ceric ammonium nitrate test= methanol

Read more about Compound

brainly.com/question/704297

3 0
2 years ago
Match the items
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1. D
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3. A
4. E
5. B
6. C
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3 years ago
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