The density of tungsten is 19.3 g/cm3. If the metallic radius of tungsten is 139 pm, what is the structure of metallic tungsten?

Q: What are the two types of layer arrangement in metals? Which has the closer packing?

A: The two types of layer arrangement in metals are : Simple Squares Hexagonal Layer   Simple squares…

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: 5.1Gold has a density of 19.32 g/cm3, and the atoms are packed in a face- centered cubic crystal…

A: Note: As per our guidelines, we are supposed to answer only the first question (question number…

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

A: For the FCC cubic,  Density = 20.5 g/cm3 Molar mass = 189 g/mol

Q: 2. What element forms a face centered cubic cell, has a density of 8.92 g/cm', and a radius of 128…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What is the true density of Zr, an HCP crystal, in g/cm3? Given: Atomic Number = 40  Atomic Weight =…

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Q: If the heat of fusion is 32.2 kJ/mol, the amount of heat energy required to melt 5.67 grams of FeO…

A: Given data, The heat of fusion = 32.2 kJ/mol Mass = 5.67 g To calculate the energy required.

Q: energy in kJ

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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: Silicon has a face-centred cubic structure with two atoms per lattice point, just like diamond. At…

A: Given : a = 543.1 pm

Q: Titanium has a body-centered cubic unit cell. The density of titanium is 4.50 g/cm³. Calculate the…

A: SOLUTION: Step 1: The density of titanium = 4.50 g/cm3. The edge length of the body centered cubic…

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

A: Crystals are the solid materials which is formed by the arrangement of atoms, molecules, ions, etc.…

Q: Name of Hypothetical Crystal Crystal Structure Radius, r, in Volume, V, in cm Length of one side of…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: An unknown element has a simple cubic unit structure with an edge length of 398.94 pm. The element…

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Q: Which substance is expected to have the LOWEST melting point? Select one: A. HCl B. CO2 C. N2 D.…

A: The temperature at which a substance changes its state from solid to liquid is known as melting…

Q: An unknown element has a simple cubic unit structure with an edge length of 471.97 pm. The element…

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Q: An alloy of copper and gold has the structure shown in Figure 3.75 (please look in your textbook).…

A: Alloys are homogenous mixtures of two solids mostly metals. These can be substitutional (if the…

Q: 4. What would you do to cause a substance to change from a solid phase to a liquid phase at constant…

A: As there are two questions, we are solving the first question for you, for the rest to be solved…

Q: The density of gold is 19.29 kg/dm3. In addition, gold has a face centered cubic unit cell.…

A: Given,  Density of Au = 19.29 kg/dm3  Cubic unit cell = face centered cubic Calculate the radius of…

Q: 8.15 Polinium is the only metal that forms a simple cubic crystal structure. Use the fact that the…

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Q: A metal has a body-centered cubic lattice with a unit cell edge length of 2.866 Å (1 Å = 10⁻¹⁰ m).…

A: Given information:Edge length of unit cell (a) = 2.866 ÅDensity of metal (d) = 7.87 g/cm3

Q: Barium is the largest nonradioactive alkaline earth metal. Ithas a body-centered cubic unit cell and…

A: Density of a unit cell is given by, Density = z×M×3NA×4π×r3 where z is the number of atoms in the…

Q: 2) Sodium is a bright, white, soft, and wax-like element dissolves in seawater, crystallizes in rock…

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Q: Calculate the heat energy released when 14.6 g of liquid mercury at 25.00 °C is converted to solid…

A: Given, Mass of mercury = 14.6 g Initial temperature, Ti = 25.00 °C = (273.15 + 25) K = 298.15 K   To…

Q: Define the term Cubic Crystalline Lattices?

A: A lattice is an ordered array of points describing the arrangement of particles that form a crystal.…

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: Platinum nanoparticles of diameter ∼2 nm are important catalysts in carbon monoxide oxidation to…

A: (a) For face-centered cubic crystal lattice, the relationship between radius and edge length is…

Q: What is polymorphs structure?

A: To Find: Polymorphs structure

Q: Consider CSCI, which has a primitive cubic lattice with one ion occupying the corners of the cube…

A: Given: Crystal lattice: CsClPrimitive cubic lattice with one ion occupying the corners of cube…

Q: What is the true density of Zr, an HCP crystal, in g/cm3 ? Atomic Number = 40 Atomic Weight = 91.22…

A: Recall the equation d = (Z× Atomic number)/(Na×a3) d= density Z= total no of atoms in  Na= Avogadro…

Q: If 20.15% of the atoms in a sample of tin are replaced by copper atoms without any change to the…

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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: Calculate the radius ratio of Ti and O in the mineral called Rutile. Using the chart below, what is…

A: The size of sites varies with the size of the spheres. In the case of ionic crystals, the radius of…

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: What is the edge length of a body-centered cubic unit cell made up of atoms that each has a radius…

A: Body-Centered Cubic unit cell ( BCC ) :  In a unit cell (cube ), When one-eighth of an atom at each…

Q: When a substance changes from phase 1 to phase 2: AG = nG„(2) – nG(1)=n{G„(2)– Gm(1)} If G (2) > G…

A: There are number of factors which govern the easy progress (spontaneity) of a chemical reaction. For…

Q: Nickel exhibits a cubic crystal structure with a lattice constant (a) value of 0.353 nm. It has an…

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Q: Which substance forms a metallic lattice? K C (graphite) I2 MgS

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Q: A hypothetical element, Le, has a body centered cubic structure with a density of 6.93 g/cm?.…

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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: Aluminum has a cubic closest packed structure as a solid. Assuming that aluminum has an atomic…

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Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: Heat of fusion : Heat needed to conversion of 1 mol of solid to liquid is called heat of fusion…

Q: An unidentified elemental solid has a density of 5.36 g/cm°. As a solid this element adopts a cubic…

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

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Q: calculate its theoretical density in g/cm3

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Q: Why does conductivity of silicon increase with the rise in temperature.

A: The conductivity of silicon increases with the rise in temperature.

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: What is the best description of conductivity? Choose one:  The ability of a substance to break…

A: In the given options, the best description about conductivity is The degree to which electricity…

Q: The unit cells for NaCl and CsCl are shown. NaCl(s) CSCI(s)

A: In a crystal structure ,unit cell is said to be simple cubic if the atoms are present at corners…