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frozen [14]
3 years ago
15

how can you predict the electron configuration of atoms using the periodic table as a model?

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Use the periodic table to identify atom properties such as groups and electron configurations. Elements are organized by period and group, with the period corresponding to the principle energy level, and the group relating to the extent the subshells are filled.

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What is the difference between a chemical and physical reaction?
vladimir2022 [97]

Explanation:

Difference between physical and chemical change are several and it is important to understand them to be able to understand these topics better. The comparisons and differences between physical change and chemical change are given below along with their examples.

6 0
3 years ago
Which of the following statements describes the results of this reaction?
yanalaym [24]

Answer: The correct answer is option (A).

Explanation:

Oxidation : A chemical reaction in which addition of oxygen occurs or removal of hydrogen occurs is called oxidation.

Reduction:A chemical reaction in which elimination of oxygen occurs or addition of hydrogen occurs is called reduction.

In a given reaction,:

C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O+Energy

  • The glucose molecule is getting oxidized into carbon-dioxide. Before oxidation in glucose molecule ratio of carbon and oxygen atom was 1:1 which changes to 1:2 after oxidation of glucose into carbon-dioxide.

Hence, C_6H_{12}O_6  is getting oxidized.

  • The oxygen molecule is reduced because addition of hydrogen atoms are taking place in oxygen molecules which gives water after reduction.

Hence, O_2 is getting reduced.

So, correct answer is option (A).

6 0
3 years ago
How many grams of aluminum chloride can be produced from 7.32g of ammonium perchlorate?
Alla [95]

Answer:

2.77g of AlCl_{3} can be produced.

Explanation:

Use stoichiometry.

Balanced equation: 3Al + 3NH_{4} ClO_{4} ⇒ Al_{2} O_{3} + AlCl_{3} +3NO + 6H_{2} O

NH_{4} ClO_{4}  :  AlCl_{3}

      3        :     1                        **n=\frac{m}{M}

 0.0623**   :    x                        n=\frac{7.32}{117.49}   = 0.0623

      3x=0.0623\\x=0.020767

n=\frac{m}{M}    

m=nM

m= (0.020767)(133.34)

m= 2.77g                                  

5 0
2 years ago
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kolezko [41]
B: Are in constant motion
5 0
4 years ago
Read 2 more answers
A principal quantum number refers to
jok3333 [9.3K]
<span> this represents the relative overall energy of each orbital, and the energy of each orbital increases as the distance from the nucleus increases</span>
6 0
3 years ago
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