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loris [4]
3 years ago
15

What neutral element will have the electron configuration 1s22s22p63s23p1?

Chemistry
1 answer:
Dovator [93]3 years ago
3 0

Answer:

a. aluminum

Explanation:

Given electronic configuration:

       1s² 2s² 2p⁶ 3s² 3p¹  

The number of electrons can be determined from adding the powers or superscripts.

Since we are dealing with a neutral element, the number of electrons and protons are the same. So we can determine the atomic number which is the number of protons.

Number of electrons  = 2 + 2 + 6 + 2 + 1  = 13

The element with atomic number 13 is aluminum.

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3 years ago
What does a positive value of A Gº mean for a reaction?
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D

Explanation:

If delta G at standard conditions is positive, then the reaction will always be nonspontaneous in the forward direction.

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When a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction: NaCl
aivan3 [116]

Answer:

The answer to your question is   2NaCl  + 2H₂O    ⇒   2NaOH  +  Cl₂  +  H₂

Explanation:

Original chemical equation

                   NaCl  +  H₂O    ⇒   NaOH  +  Cl₂  +  H₂

                   Reactant      Element        Products

                       1                    Na                    1

                       1                    Cl                      2

                       2                    H                      3

                       1                     O                      1

This reactions is unbalanced

                2NaCl  + 2H₂O    ⇒   2NaOH  +  Cl₂  +  H₂

                   Reactant      Element        Products

                      2                    Na                    1

                      2                    Cl                     2

                      4                    H                      4

                      2                     O                     2

Now, the reaction is balanced

5 0
3 years ago
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