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anastassius [24]
3 years ago
5

Help ASAPPPPPPPPPPPPPPPP​

Chemistry
2 answers:
borishaifa [10]3 years ago
6 0

<em>Answer </em>

A

<em>step by step explanation</em>

<em>because an element that is 3rd period and 2 group is mg. mg has atomic number of 12 and electron per shell k=2,l=8,m=2</em>

yawa3891 [41]3 years ago
5 0

Answer:

3 Shells and 2 valence electron

Explanation:

Groups are determined by valence electron of element

Period of element is determine by number of shells occupied by electrons

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juin [17]

Answer:

to go against dangerous viral and bacteria

Explanation:

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3 years ago
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Identify the following as either a chemical symbol or a chemical formula. CO Co W Be HI
Nat2105 [25]

Answer:

CO is the chemical formula for carbon monoxide.

Co is the chemical symbol for cobalt.

W is the chemical symbol for tungsten.

Be is the chemical symbol for beryllium.

HI is the chemical formula for hydrogen iodide.

Explanation:

Chemical symbols are either written as a single uppercase letter (ex. O) or an uppercase letter and a lowercase letter (ex. Na).

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7 0
4 years ago
Similarities between pluton and pegmatite
snow_lady [41]
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7 0
3 years ago
1. Draw a wedge/dash structure for trans-1,2-dimethylcyclohexane.
Angelina_Jolie [31]

Answer:

The structure with the ring flipped is the most stable

Explanation:

We have the  trans 1,2 - dimethylcyclohexane. With the wedge/dash structure we could not figure is this form is stable (If we do a comparison with the cis structure). But when we do a chair structure and ring flipped structure, this is easier to look.

The picture attached shows the structures, they are labeled as 1, 2 and 3, according to this problem.

In the chair structure, according to the picture below, you can see that both methyls are heading in the axial positions of the ring (One facing upward and the other downward). This is pretty stable, however, when the methyls are in those positions, the methyl position 1, can undergoes an 1,3 diaxial interactions with the hydrogens atoms (They are not drawn, but still are there), so this interaction makes this structure a little less stable that it can be.

On the other side, the ring flipped structure, we can see that both methyls are in the equatorials positions of the ring, and in these positions, it can avoid the 1,4 diaxial interactions with the hydrogens atoms, making this structure the most stable structure.

Hope this helps

6 0
3 years ago
A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ react
Georgia [21]
I believe the correct answer is B. Combination.
7 0
4 years ago
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