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ikadub [295]
2 years ago
10

What is the purpose of the periodic table?

Chemistry
1 answer:
Charra [1.4K]2 years ago
6 0

Answer:

the periodic table is important because it is organized to provide a alot of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered.

Explanation:

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Alkali metals have very weak coordinating power? Why?
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Their valence electrons don't give them the ability to bond, they are also not in need to any electrons, since they won't get an octet soon. 
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Which phrases accurately describe acids? Check all that apply.
weqwewe [10]

Answer: Option 1, 4 and 5 describe acids accurately.

Explanation:

Option 1: Acids have a sour taste because of the concentration of H^+ ion.

Option 2: They are corrosive in nature, that is they are not at all gentle with the skin and fabric as some acids intend to burn skin such as H_2SO_4 is a strong acid which can burn skin as well as fabric.

Option 3: Acids need electrons to release H^+ ions and non-metals do not donate electrons hence, there is no reaction between a non-metal and an acid.

Option 4: All acids do contain hydrogen. They dissociate in the presence of water to produce H^+ ions.

                                 HCl\overset{H_2O}{\rightarrow} H^++Cl^-

Option 5: Acids do conduct electricity that is they carry electrical charges. This was explained by Arrhenius. He said that the acids dissociate into H^+ions, when it is dissolved in water. These ions hence acts as charge carriers in water.

8 0
3 years ago
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How is the amount of work done on an object relative to its change in energy?​
koban [17]

Kinetic energy is produced when the amount of work done on an object relative to its change in energy.

Explanation:

A strong connection is present between within work as well as energy. When work is performed on an object energy is added along with it . Energy can be defined as ability to do certain amount of work on the other hand work means to change in energy . Kinetic energy is produced when the object is in moving position and potential energy is produced when the object is at resting position.

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Which of the following statements correctly describe ground-state electron configurations?
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The ground state electronic configuration has the lowest energy distribution of the electrons. correct option is (A).

The energy associated to an electron is that of its orbital. The energy of configuration is often approximated as the sum of the energy of each electron, neglecting the electron electron interactions.

The configuration that corresponds to the lowest electronic energy is called the ground state. Any other configuration is an excited state.

As an example, the ground state configuration of the sodium atom is 1s2 2s2 2p6 3s1, as deduced from Aufbau principle.

To know more about ground state click here:

brainly.com/question/1968924

#SPJ4

8 0
1 year ago
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