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Density is the <u>degree of the heaviness of a particular substance. </u>
- Density can also be defined as the<u> unit mass of a substance per the substance's volume.</u>
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Density is said to be the characteristic property of a pure substance because the <u>density of a pure substance</u> is <u>constant and fixed </u>
- <u>Pure substances</u> are substances that are homogenous in nature, which means they are uniform and are made up of only <u>one component.</u>
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- Density is said to be the <u>characteristic property</u> of a <u>pure substance </u>because the density of a pure substance<u> is constant and fixed</u> but its <em>mass and volume can vary. </em>
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The correct answer is polarizing power increase.
The polarizing power of these ions grows as they move through a period because their charge increases and their size decreases. The size grows and the polarizing strength reduces as one descends a group. These two effects somewhat cancel each other out while travelling diagonally, preventing a noticeable change in attributes. As a result, the attributes of these diagonally oriented elements behave similarly.
What is polarizing power?
The capacity of a cation to distort an anion is known as its polarization power. The term "polarizability" refers to an anion's propensity to get polarized by a cation. The charge and radius of a cation affect its ability to polarize. The relationship between charge and radius and cation polarization power. Because they are directly proportional to one another, polarization power of the cation increases as cation charge increases.
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In order to determine the state of the manganese ion, we will look at the anion bonded to it.
MnN, N = -3 so Mn(III)
MnO, O = -2 so Mn(II)
MnBr2, Br = -2 so Mn(II)
Mn2S3, S = -2 so Mn(III)
Mn3P2, P = -3 so Mn(II)
MnI3, I = -3 so Mn(II)
2.
For this question we will have to check the number of protons of each element from the periodic table. After this, we will remove or add electrons until the desired charge is attained (charge is difference between number of protons and electrons) since the number of protons does not change.
K+: protons = 19, electrons = 18
Cl-: protons = 17, electrons = 18
Fe+2: protons = 26, electrons = 24
Answer 1:
For compound A:
<span>2.8 g of nitrogen for each 1.6 g of oxygen
</span>Atomic weight of N = 14
Atomic weight of O = 16
Thus, number of moles of N = 2.8/14 = 0.2
and number of moles of O = 1.6/16 = 0.1
Thus, molar ratio of N and O in compound is 2:1.
Therefore, <span>lowest whole-number mass ratio of nitrogen that combines with a given mass of oxygen is 2:1. And the compound formed is N2O.
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</span>Answer 2:
For compound B:
5.6 g of nitrogen for each 9.6 g of oxygen
Atomic weight of N = 14
Atomic weight of O = 16
Thus, number of moles of N = 5.6/14 = 0.4
and number of moles of O = 9.6/16 = 0.6
Thus, molar ratio of N and O in compound is 4:6 = 2:3.
Therefore, lowest whole-number mass ratio of nitrogen that combines with a given mass of oxygen is 2:3. And the compound formed is N2O3.