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4 years ago

8. How do crystal systems differ

Chemistry

2 answers:

Llana [10]4 years ago

6 0

Answer : The correct answer is : Difference in edges , length and angles .

Crystal system shows large varieties of forms . These forms differs due to difference in length , angles and edges . On the basis of their difference in edge length and angles they can be of following types :

1) Cubic

2) Tetragonal

3) Hexagonal

4) Orthorhombic

5)Rhombohedral

6) Monoclinic

7) Triclinic

Marina CMI [18]4 years ago

5 0

Crystal systems differ in their lengths, angles and edges.

Further Explanation:

Crystallography:

It is the study of arrangement and bonding of atoms present in various crystalline solids and their connection with geometric structures of crystals.It provides an essential tool for easy and complete understanding of different properties of substances. This technique makes use of X-rays, electron and neutron diffraction methods for identification and characterization of solids.

Crystal system is class of point groups and their respective groups are assigned specific lattice system. On basis of arrangement of various point groups in lattice systems, seven crystal systems are present.

Types of crystal systems:

1. Cubic

2. Tetragonal

3. Hexagonal

4. Orthorhombic

5. Rhombohedral

6. Monoclinic

7. Triclinic

These different types of crystal systems have different lengths, edges and angles. Hence crystal systems differ from each other in terms of lengths, angles and edges.

Learn More:

Find the minimum mass of the ore: brainly.com/question/1807796
What type of crystal is rock salt? brainly.com/question/1951877

Answer Details:

Grade: Senior School

Subject: Chemistry

Chapter: Solid State

Keywords: crystallography, crystal system, edges, lengths, angles, seven, cubic, triclinic, tetragonal, hexagonal, orthorhombic, rhombohedral, monoclinic, atoms, arrangement, bonding, X-rays, identification, characterization, point groups, electron, neutron, properties, arrangement.

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3 years ago

What method do water buffalo use to fight the lions

sertanlavr [38]

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4 years ago

Given: 2AgNO3 + NiCl2 -> 2AgCl + Ni(NO3)2

serious [3.7K]

Answer: AgNO3 is the limiting reactant.

Explanation:

1) Balanced chemical equation:

Given: 2AgNO3 + NiCl2 → 2AgCl + Ni(NO3)2

2) Mole ratios:

2 mol AgNO3 : 1 mol NiCl2 : 2 mol AgCl : 1 mol Ni(NO3)2

3) Convert 0.847 g of AgNO3 to moles

n = mass in grams / molar mass

molar mass = sum of the masses of all the atoms in the molecular formula

molar mass of AgNO3 = 107.9 g/mol + 14.0 g/mol + 3*16.0 g/mol = 169.9 g/mol

n = 0.847 g / 169.9 g/mol = 0.00499 mol AgNO3

4) Convert 0.650 g of NiCl2 to moles

n = mass in grams / molar mass

molar mass NiCl2 = 58.7 g/mol + 2*35.5 g/mol = 129.7 g/mol

n = 0.650 g / 129.7 g/mol = 0.00501 mol NiCl2

5) Compare the theoretical mole ratio with the actual ratio:

Theoretical mole ratio: 2 mol AgNO3 / 1 mol NiCl2
Actual ratio: 0.00499 mol AgNO3 / 0.00501 mol Ni Cl2 ≈ 1:1

Therefore, the amount of AgNO3 is half the required amount need to react with all the NiCl2, which means that the AgNO3 will react completely and there will be an excess of NiCl2. The reactant that is consumed completely while the other is left, is the limiting reactan. This is, AgNO3 is the limiting reactant.

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4 years ago

Jorge inflates a beach ball to a volume of 4L in his air-conditioned house where the temperature is 18℃. That afternoon he takes

balandron [24]

Answer:

The beach ball will get larger at the beach because the molecules are moving faster.

Explanation:

We can answer this problem by using Charle's Law, which states that:

"For a constant mass of an ideal gas kept at constant pressure, the volume of the gas is directly proportional to its temperature"

Mathematically:

$V\propto T$

where

V is the volume of the gas

T is the absolute temperature of the gas

Here, we are analyzing the air inside the ball (the gas). We are also told that when the ball is brought to the beach, the pressure does not change: therefore, we can apply Charle's Law.

We are told that when the ball is brought to the beach, the temperature increases from 18℃ to 32℃: therefore, since the volume of the air (and the ball) is proportional to the temperature, this means that the volume of the ball will increase as well.

The reason for this is that the ball is not thermally isolated, so the molecules of the air inside the ball reach soon the same temperature of the surroundings, and so they will move faster (higher temperature means higher average kinetic energy of the molecules, so the molecules move faster, and therefore the ball will expand).

So the correct option is

The beach ball will get larger at the beach because the molecules are moving faster.

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