The later halogens form pentafluorides ClF5, BrF5 and IF5 at 0oC, one of these is a solid, one a liquid and one a gas. specify which is

Q: Describe and give examples of the following types of crystals:  (a) molecular crystals, (b) metallic…

A: Crystals are basically solid materials that are arranged in a particular organized way. Both types…

Q: Using molecular properties, explain why bromine is more disordered than mercury. Select those that…

A: Mercury, water and bromine are liquids at standard temperature. Their molar entropies are in the…

Q: The elements xenon and gold both have solid-state structures consisting of cubic close-packing…

A: Both xenon and gold have cubic close-packing arrangements in solid state. But, there is a huge…

Q: A hypothetical metal A with a BCC lattice structure has a density of 8.87 g/cm3.If a hypothetical…

A: Here density of metal A is given as 8.87 g/cm3. The formula to calculate the density is, d=Z×MNA×a3…

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 166 pm.…

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Q: 5. Strontium (Sr: [Kr]5s2) crystal has a mass density of 2.64 g/cm3 and a molar mass of 87.62 g/mol.…

A: Mass density = 2.64 g cm-3 Molar mass   = 87.62 g mol-1

Q: Define the term cubic closest packing?

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Q: 7. What type of substance is graphite? a. lonic d. Metallic b. Network covalent e. None of the above…

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Q: Which element is a liquid at 758 K and standard pressure? A) Gold B) Silver C) Platinum D) thallium

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Q: Define the term body-centered cubic lattice?

A: Lattice is a part of crystal, which is a 3D arrangement of atoms, molecules, or ions. Furthermore,…

Q: A hypothetical metal A with a BCC lattice structure has a density of 8.87 g/cm3. If a hypothetical…

A: Given: density of the metal A = 8.87 g/cm3 To find: The density of metal B

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.12 g/cm3.…

A: For BCC , Density = ZM/NOa3 where, Z = 2 For BCC M = Molar mass = 54.033g/mol a = edge length NO =…

Q: What is the difference between Asthenosphere and Lithosphere? O Lithosphere is rigid and…

A: Earth chemistry

Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

A: FCC structure means face centered cubic arrangement, here total 4 atoms used to present in a

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

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Q: How can I show the relevant steps to calculate Deltaf H degrees of MgCl(s) given the following data:…

A: Need to calculate Deltaf H degrees of MgCl(s)

Q: Which of the following represent closest packing of spheres? 11 III IV O II + IV OI + IV III+IV | +…

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Q: 19. Which substance forms a metallic lattice? OK O C(graphite) O 12 O MgS

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Q: Is interatomic bonding in ceramics always ionic? Or is that false?

A: Ceramics : These are very brittle , corrosion resistant material made from inorganic non metallic…

Q: A hypothetical metal, which is a single crystal and made up of one chemical element, has an FCC…

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Q: Beryllium and magnesium,

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Q: A metal with molar mass of 46.15g/mol crystallizes in a face-centered cube with edge length of 392…

A: In a face centered cube unit cell one atom exist in the center and eight 1/2 atom lies in each face…

Q: Explain why X rays can be used to measure atomic distancesin crystals but visible light cannot be…

A: Diffraction is a phenomenon which enables us to measure the interatomic distance in crystals.…

Q: <p>Explain why the graphite structure of carbon allows graphite to be used as a lubricant, but…

A: In graphite, flat sheets of carbon are connected together in the form of interconnected hexagonal…

Q: 16. Calculate the normal melting point of l2 (s) in °C given the following data: AH° = 15.52 kJ/mol…

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Q: Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.…

A: Given: Ta has BCC unit lattice. Molar mass of Ta = 191.01 g/mol. And density of Ta = 13 g/cm3.

Q: 9) Solid MgO Liquid MgO Based on the diagram above, which of the following best helps to explain why…

A: As per the diagram:

Q: INTERPARTICLE FORCES 129 4. The melting points of Na and Mg at 1 atm are 98°C and 650°C,…

A: Noble gas shorthand electron configuration is the way of writing any element's electron…

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: Why does CsCl present a body-centered cubic lattice?

A: Crystalline solids are mainly characterized by regular and repeating pattern of its constituent…

Q: Discuss the dependence of strength on temperature for metals, ceramics and polymers from the…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A hypothetical element, Le, has a body centered cubic structure with a density of 7.98 g/cm3.…

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Q: LiH crystallizes with the same structure as NaCl. Given the ionic radii and the molar mass of Li+ (…

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Q: Q1. The net potential energy between two adjacent ions, EN, is represented by A В EN pn where En is…

A: 1. Given: The expression for net potential energy between two adjacent ions is as follows,…

Q: cion 2 Tridium (192.2 g/mol) crystalizes in a face centered cubic lattice. Iridium has a density of…

A: The relationship between density and volume is as follows,…

Q: Which of the following elements reacts with sulfur to form a solid in which the sulfur atoms form a…

A: The following elements react with sulfur to form a solid in which the sulfur atoms form a closest…

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: What are the most common types of polymorphism in crystals?

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Q: Which compound likely has a higher melting point, aluminum chloride AlCl3 or Phosphorus trichloride…

A: So the melting point of given two compounds i.e. aluminium Chloride ( AlCl3) and phosphorus…

Q: 6. 7. 8. 9. 10. A substance is a brittle crystal that conducts electricity in molten liquid state…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: In a crystal of sodium chloride, the sodium ion fits into a FCC hole. Calculate the radius of the…

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Q: Sodium hydride, NaH, is available commercially as a gray-white powder. It melts at 800°C with…

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Q: please explain before answering On the basis of your knowledge of bonding in liquids and solids,…

A: Melting point can be defined as the temperature at which the substance starts melting.

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: 23.45 grams of Magnesium Chloride were added to 500. mL of water. What change in boiling point can…

A: 23.45 grams of MgCl2 is given. Molecular weight of MgCl2 = 95.211 gram i = 3 , since it dissociate…

Q: The best explanation for the fact that diamond is extremely hard is that diamond crystals A. are…

A: Diamond is actually allotrope form of elemental C. In its structure each C is bonded to 4 other C…

Q: With proper reasons justify at room temperature why silicon is opaque and silicon dioxide is…

A: The silicon ( Si) (Z=14)  is opaque at room temperature. The silicon dioxide (SiO2) transperent at…

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

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Q: Your roommate is having trouble understanding why solids form. He asks, “Why would atoms bond into…

A: Solid are the basic state of matter and having low intermolecular spaces and high intermolecular…