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const2013 [10]
3 years ago
9

3.

Chemistry
2 answers:
allsm [11]3 years ago
7 0

Answer:

Electrons that arent electrons

Explanation:

I teach chem

goblinko [34]3 years ago
3 0

Answer:

Valence electrons are the electrons found in the highest and main energy level of the atom, being these responsible for the interaction between atoms of different species or between atoms of the same species. You can quickly determine these by looking at a periodic table like this one... Which is where the roman numbers come in and show the valence electrons. (THIS TABLE IS IN SPANISH, I hope you still recognize the symbols.) :))

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Draw the structure of the product of each step in the following three-step synthesis. Show the formal charges, if applicable. As
Dvinal [7]

Answer:

Second step: 4-bromo-1-methyl-2-nitrobenzene.

Third step: 1.5-dibromo-2-methyl-3-nitrobenzene.

Explanation:

To solve this exercise I will use the concepts of electrophilic substitution. In these reactions, a functional group is displaced by an electrophile. In the attached image are the two main products.

5 0
3 years ago
Why is it useful to know the background level of extinction?
lawyer [7]

Answer:

NOAA and FWS are required by law to compare background rates to current rates.

Explanation:

5 0
2 years ago
how many covalent bonds does a phosphorus atom normally form, based on the number of valence electrons in the atom?
Alexandra [31]

Triple covalent bond I guess

8 0
3 years ago
Ill upvote please help
marshall27 [118]
We know, acceleration = change in velocity / time
a = 9.6 - 12 / 0.9
a = -2.4 / 0.9
a = -2.67

In short, Your Answer would be Option C

Hope this helps!
3 0
3 years ago
A reaction that is spontaneous at low temperature can become non spontaneous at high temperature if δh is\
marishachu [46]

Answer:

Reaction

Explanation:

A reaction that is spontaneous at low temperature

6 0
2 years ago
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