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ollegr [7]
3 years ago
6

8. What causes the shielding effect to remain constant across a period? O The atomic radius increases.O Electrons are added to t

he same principal energy level. OElectrons are added to different principal energy levels. O The charge on the nucleus is constant.​
Chemistry
2 answers:
Nonamiya [84]3 years ago
8 0
<h3>Option D(Last) :- </h3>

<em>The</em><em> charge on the nucleus is constant</em>.

<h3>Explanation:-</h3>

<em>The number of inner shell electrons being constant causes the shielding effect to remain constant across a period</em>

Lemme Follow and Mark brainliest..

<h3>Thank you:)</h3>
Tatiana [17]3 years ago
5 0
The number of inner shell electrons being canstant because the shielding is effected to remain constant across a period.
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7 0
3 years ago
Given the following reaction: H2SO4+2LiOH=Li2SO4+2H20, what mass of water is produced from 19 g of sulfuric acid?
goldfiish [28.3K]

Hi,

To solve the question, first of all we will find out the no. of moles of H2SO4 in  19 g of sulfuric acid.

As we know:

              No . of moles = Mass/ Molar mass

              No. of moles= 19 g/98.08 g

               No. of moles= 0.1937

Now we know the no of moles of H2SO4 that will react with 2LiOH. We also know the  molar equivalence of H2SO4 , and 2LiOH that will react.

So, the  water that will be produced will be 2H2O and 1 Li2SO4 when H2SO4 that will react with 2LiOH.

                          0.1937 x 2x 18.01

                                 =6.977

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Therefore, approximately 6.98 grams of water will be produced from 19 g of sulfuric acid.


Hope it helps!


5 0
3 years ago
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