Indicate the strongest force holding the crystals together in the following substances by putting a check on the appropriate box. The first five substances were done for you. TYPES OF CRYSTAL Metallic Molecular lonic Covalent Network Substance Dispersio Dipole- dipole Hydroge n bonds Metallic bonds lonic bonds Covalent Network forces attraction 1 Kr 2 HF NO Al K.S NH, HCI KMNO, so, CO, 10 11 Si N34 567 00

Q: Using principles of chemical bonding and/or intermolecular forces, explain each of the following.…

A: Elements react with each other to form chemical bonds. Chemical bonds are formed to increase the…

Q: Given the following substances, which one is expected to have the highest melting point? (A) Cl207…

A: melting point : melting point of a substance is defined as the temperature at which substance…

Q: Platinum (Pt) has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the…

A: Given: Density of platinum= 21.5 g/cm3

Q: Do the anions touch each other in any of these three structures? If not,which ions do touch each…

A: To find: the anions touch each other in any of the three structures . if not which ions do touch…

Q: Dispersion forces occur, because at any moment the electrons are unevenly distributed in an atom.…

A: Dispersion forces are the forces that exists in every type of molecules. These forces are present…

Q: A solid metal X requires 120 J of heat to melt 2.0 grams of the metal at its normal melting point of…

A: The amount of heat required by a substance during its phase change from solid to liquid is called…

Q: body centered cubic structure with a density of 6.39 g/cm3. Calculate its atomic radius in pm.…

A: In body centered cubic(BCC) particles are present at corners and body centers. So, effect number of…

Q: Platinum has ΔHvap= 510.4kJ/mol and ΔSvap= 124.7 J/K•mol What is the appropriate boiling point of…

A: It is given that change in enthalpy of vaporization for platinum is 510.4 kJ/mol and change in…

Q: What kinds of attractive forces exist between particles in (a) molecular crystals; (b)…

A:

Q: Consider the following materials: 1) liquid methane (CH4) 2)  liquid water (H2O),  3)  solid sodium…

A: The four types of Intermolecular Forces are Dispersion, Dipole–Dipole, Hydrogen Bonding, and…

Q: What is the purpose of crystal structure?

A: Crystal structure is determined by X-ray crystallography.

Q: Calculate the energy for vacancy formation (in J/mol) assuming that the density of the metal remains…

A: Matter exists in solid state also. Metals are in solid state. Temperature is the measure of hotness…

Q: Which substance in each of the following pairs would you expect to have the higher boiling point?…

A: Given that a some following pair compounds. following pair is a substance of higher boiling point.

Q: Briefly explain why chemically similar alkali metal chlorides, NaCl and CsCl, have different…

A:

Q: 7. Melting points of Br2 and ICl are - 7.2 and 27.2°C, respectively and their electrons are same.…

A: Both Br2 and ICl  are isoelectronic, but their melting points are different.

Q: 21. Complete the following table Pure substance Br2 HBr NaBr b.p. 59 °C b.p. -66 °C m.p. +747 °C…

A: Explanation- 1) The boiling point of bromine is 58.8 degrees Celsius. At its boiling point, bromine…

Q: Butter melts over a range of temperatures, rather than with a sharp melting point. Butter is…

A: Crystalline solid : a. The constituent units are held together in a regular arrangements.  b. They…

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given: Density of metal = 20.5 g/cm3. The lattice structure of the metal is FCC. And the molar mass…

Q: Туре of Crystal Covalent Metallic Ionic Molecular Substance Network Dispersion Forces Dipole- Dipole…

A: In this question we have to determine the type of crystal solid formed by the given compounds.

Q: Beryllium and magnesium,

A:

Q: Determine the Madelung constant of the two-dimensional ionic crystal in the figure below for the…

A:

Q: What are 8 Network Covalent Atomic Solids?

A: The bond formed between two atoms by the sharing of electrons to satisfy the octet rule is known as…

Q: Transition metals in their ores are colored a. True b. False   Which of the following substances…

A: We will answer the following questions with explanation.

Q: Match each term to the correct example. Quartz (silicon dioxide) V [Choose ] Molecular solid lonic…

A: Each terms are matched with the example in the table given below.

Q: Decide what kind of crystalline solid each element or compound in the table forms, and what kind of…

A:

Q: Classify each substance in the table as either an atomic, metallic, ionic, molecular, or covalent…

A: Each substance in the table as either an atomic, metallic, ionic, molecular, or covalent network…

Q: What are the network covalent atomic solids?

A: Definition of solids: The compound has, sharp dissolving focuses, fixed shapes, and has more…

Q: 3. The number of Bravais lattices are. (a) 7. (b) 14 (c) 10

A:

Q: Choose the compound that has the highest surface tension. (Consider intermolecular forces) H Не 10…

A: When the intermolecular forces of attraction of among the molecules is higher , then molecules on…

Q: Indicate the strongest force holding the crystals together in CH3OH and K2S.

A: The force of attraction present between the molecules of a substance is known as intermolecular…

Q: E You are given a white substance that melts at 1500 °C. The substance is brittle and soluble in…

A: Properties of given substance Substance melts at temperature 1500°C Substance is brittle Substance…

Q: Based on their formulas, classify each of the following in the solid state as a molecular, ionic,…

A:

Q: Which of the following is an ionic solid? s2- SF6 Na2s O S8 O so,2-

A: We know that, Generally an ionic compound are solid. S2- is only one ion. So it is not solid. SF6 is…

Q: TYPES OF CRYSTALS Substance Molecular Metallic lonic Covalent Network Dispersion Dipale- Hydrogen…

A: Covalent bond is formed due to the overlap of orbitals . Ionic bond is formed due to the…

Q: Q4 /I Answer the following (choose three branches): A- Iron was formed at 912 ° C by the effect of…

A: For BCCNumber of atoms per unit cell = 2 Relation between edge length and radius is : r= a34Volume…

Q: Which substance is a network covalent solid? A) Carbon Dioxide, CO2 B) Diamond. C C) Mercury, Mg…

A: A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These…

Q: What are the Cubic Crystalline Lattices?

A: Cubic crystal lattices have all the edges of same length and the angle between the all the faces is…

Q: 1. The chart below shows three allotropes of carbon. ALLU1HOMIC UHMS O CAKSUN These three forms have…

A: Carbon is an element which can exist in different physical forms. The capacity of C to exist in…

Q: Choose the compound that has the lowest surface tension. (Consider intermolecular forces) 2 H Не 400…

A: a) CH3OCH3 has the lowest surface tension. Because it doesn't involve in intermolecular hydrogen…

Q: Why are the close pack directions important feature in crystal structure? (one sentence only)

A: To give the importance of close pack directions in crystal structure?

Q: What kinds of forces hold each of the three basic categories of atomic solids together?

A: SOLUTION: Step 1: The different types of atomic solids and the types of forces in them are as…

Q: An alloy of gold and copper is shown below. Given that 24 carat gold is pure gold, what carat does…

A: Carat is a mass measurement, 24 carat gold is 100% gold by mass.

Q: Question 9 options:  a  b c d 1. metallic 2. molecular 3. covalent network 4. ionic

A: These are the type of bonding in compounds or an element present in the field of chemistry.

Q: 2. How to find what a materials crystal structure is? (FCC, BCC or neither FCC or BCC or

A: We have to tell how to detect a material crystal structure is either FCC, BC, or neither FCC, or…

Q: X. Arrange the following according to decreasing melting point. Explain your answer. A. sodium metal…

A:

Q: Match each compound to the description listed in (A) – (E).  For the “How do you know?” question, do…

A: We have: Some Compound, and their properties, based on Knowledge we have to match the compound with…

Q: Choose the compound that has the lowest surface tension. (Consider intermolecular forces) Не Li Be B…

A: Answer:- This question is answered by using the simple concept of surface tension which is directly…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.