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Ray Of Light [21]
3 years ago
9

Down a group, the electron shielding tends to________

Chemistry
2 answers:
r-ruslan [8.4K]3 years ago
6 0
The answer is A increase
JulsSmile [24]3 years ago
4 0

Answer:

A

Explanation The number of energy levels (n) increases, and so does the distance between the nucleus and the outermost orbital. The increased distance and the increased shielding weaken the nuclear attraction, and so an atom can't attract electrons as strongly.

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maria [59]
In order to obtain solid NaCl, the student should do a few steps.

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Next, the filtrate should be left with NaCl (aqueous state). To seperate NaCl with the liquid, the student can either do evaporation or crystallization, depending on how pure or fast he/she wants the results to be. Evaporation involves heating the beaker or whatever apparatus under the bunsen burner until all the liquid has evaporated. Then, some white powder should be left, they're NaCl solid. For crystallization, the student should just put the beaker on a room condition environment, and wait. They might have to wait a month or so for the liquid to completely evaporate itself and left with clear and pure NaCl crystals.
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3 years ago
What is the relationship between mass and gravity
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Mass causes gravity.
5 0
2 years ago
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fenix001 [56]

Answer:

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6 0
3 years ago
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Annette [7]

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Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid or precipitated form are represented by (s) after their chemical formulas.  

A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.  

The balanced chemical equation is:

K_2SO_4(aq)+BaCl_2(aq)\rightarrow BaSO_4(s)+2KCl(aq)

3 0
2 years ago
What is the pH of a 0.028M solution (pH= -log(M))<br><br> A) 3.56<br> B) 2.88<br> C) 1.55<br> D) 1
kupik [55]

Answer:

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- Hope that helps! Please let me know if you need further explanation.

4 0
3 years ago
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