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WINSTONCH [101]
3 years ago
10

Why do you believe knowing how elements and compounds react together is essential in everyday matters?

Chemistry
2 answers:
soldi70 [24.7K]3 years ago
8 0

Answer:

It is very important to known about the chemical reactions that takes place around us.

There are various types of chemical reactions taking place in our every day life. The burning of match stick, rusting of iron are chemical reactions that takes place in the body of organisms.

The compounds react together to form essential products which is formed. The matter that is formed in nature is combination if elements. Water and carbon dioxide form carbohydrates.

This is an example of combination of elements. There are many more examples which are seen in day to day life.

mylen [45]3 years ago
4 0

Scientist believe that about 25 of the known elements are essential to life. Just four of these - Carbon (C), Oxygen (O), Hydrogen (H), and Nitrogen (N), - make up about 96% of the human body.


These four elements are found in the basic structure of all biochemical molecules. For example, Glucose is a carbohydrate and it's molecular formula is C6H12O6 - each molecule of glucose is made up of 6 Carbon atoms, 12 Hydrogen atoms and 6 oxygen atoms.


The other elements found can be divided into two main groups - major elements and trace elements.


The human body functions as a result of a large number of the chemical reactions involving compounds of a of these elements.

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A particular atom contains 29 electrons, 34 neutrons, and 29 protons. what is the identity of this element and what is its atomi
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Answer:

             Identity =  Copper

             Atomic Number =  29

Explanation:

Given Data:

Number of Electrons  =  29

Number of Neutrons =  34

Number of Protons  =  29

Identity and atomic number of Element:

                              This element can be identified by using two sources, i) Atomic Number ii) Electronic Configuration.

Atomic Number is defined as the number of protons present in the nucleus of an element. As the given number of protons are 29, therefore, the atomic number of this element is also 29.

Secondly, if the element is in neutral state then its number of protons must be equal to the number of electrons present in it. So, in neutral state this element will contain 29 electrons. Therefore, the electronic configuration is as follow,

                                     1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d⁹

Now using electronic configuration one can easily identify the position of this element in periodic table. As the valence shell is 4, so it belongs to period 4 and there are 9 electrons in d-subshell so it belongs to transition elemnts and transition element with 9 electrons in d shell is Copper. Also, the stable electronic configuration of copper is written as,

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Answer:

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According to the arrhenius theory, a base is a substance that combines with water to produce excess hydroxide ions, OH⁻ in an aqeous solution. Examples are :

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