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Eddi Din [679]
2 years ago
10

How is the periodic law demonstrated in halogens

Chemistry
2 answers:
Zina [86]2 years ago
4 0

Answer:

The periodic law demonstrated in halogens by:

All halogens have the same number of valence electrons and similar chemical properties

Explanation:

  • The halogen are located in the group of seven A of the periodic table example of halogen are iodine and chlorine.
  • The halogens are the reactive non-metals in the periodic table, it reacts with alkali metals.
  • Halogen responds with iron, iron wool outbreak into flames when it responds with fluorine gas.
  • Halogen range from solid to liquid to gaseous at room temperature.

inn [45]2 years ago
3 0
Halogens is defined as the group of 7 periodic table. As, every periodic table contains 7 valence electrons and they only need 1 more to complete an outer shell, that is why they are extremely reactive. And according to the law that recurring patterns of the properties of elements arise when they are arranged in order of increasing atomic number. As the halogen all act very similarly with each other in chemical reaction, it is true.
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When a solute molecule is solvated, is energy released or absorbed?
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Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42−. Separate the ions with a comma only—spac
gladu [14]

Na⁺,SO₄²⁻ is the answer

<h3>Further explanation </h3>

An ion is an atom or molecule that has a net electrical charge. There are many ions, one of them are sodium ion and sulfate ion.

SO₄²⁻ or Sulfate is a naturally occurring polyatomic ion that consist of a central sulfur atom surrounded by four oxygen atoms with occured widely in everyday life. Sodium ions are important for regulation of blood and body fluids, transmission of nerve impulses, heart activity, and certain metabolic functions.

Whereas Na⁺ or Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sulfate ion is a very weak base. Therefore sulfate ion undergoes negligible hydrolysis in aqueous solution.

Enter the symbol of a sodium ion, Na⁺, followed by the formula of a sulfate ion, SO₄²⁻. Separate the ions with a comma only—spaces are not allowed. Express your answers as ions separated by a comma. Therefore the answer is: Na⁺,SO₄²⁻

Hope it helps!

<h3>Learn more</h3>
  1. Learn more about sodium ion brainly.com/question/6839866
  2. Learn more about sulfate ion brainly.com/question/2763823
  3. Learn more about ions brainly.com/question/11852357

<h3>Answer details</h3>

Grade:  9

Subject:  Chemistry

Chapter:  Introduction to Mastering Chemistry

Keywords: sodium ion, sulfate ion, ions, Chemistry, symbol

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A solution contains one or more of the following ions: Ag + , Ca 2 + , and Co 2 + . Ag+, Ca2+, and Co2+. Lithium bromide is adde
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Answer:

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When Li3PO4 is added, again precipitation takes place.Reaction is:

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A. Ca2+ and Co2+ are present in solution

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8 0
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A graduated cylinder holds 100 mL of water. A lead weight is dropped into the cylinder bringing the new volume up to 450 mL. If
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11.43g/mL

Explanation:

Given parameters:

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Unknown:

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Solution:

Density is the mass per unit volume of a body.

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Density = \frac{4000}{350}  = 11.43g/mL

learn more:

Density brainly.com/question/2690299

#learnwithBrainly

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