Write the balanced chemical equation for the reaction of aluminum with iodine. Include phase symbols.

Q: Which of the following alloys does not contain copper?           (A) Bronze          (B) Pewter…

A: Bronze = copper + tin  Pewter = Tin + antimony + copper  Sterling silver = silver + usually copper

Q: Why do helium and lithium exhibit very different chemical behavior, even though they differ by only…

A:

Q: estimate the fraction of electrons above fermi level in sodium and copper at room temperature

A:

Q: Draw the structures of manganate and permanganate ions and predict their magnetic character.

A: Draw the structures of manganate and permanganate ions and predict their magnetic character.

Q: List various types of alloys, materials that contain more than one element?

A: Alloys are metallic compounds made up of one metal and one or more metal or non-metal elements.

Q: Calculate the vapor volume (m3) for 6 moles of CS2 (SG = 1.26).

A: Given: Moles of CS2 = 6 mol. And specific gravity of liquid = 1.26

Q: Explain how homogeneous and heterogeneous alloys differ. Describe the differences between…

A: An alloy is a uniform mixture. It is made up of two or more chemical elements, of which at least one…

Q: Specify which MAGNESIUM alloys gain strength by cold deformation and aging, specify how the aging…

A: Cold formation is a method to strengthen the the metal below the recrystalline temperature. Mg alloy…

Q: m given the cube dimensions, lattice

A: Density is physical quantity of a substance . It is defined as ratio of mass by volume .For a…

Q: Th e elements Cu, O, La, Y, Ba, Tl, and Bi are all found in high-temperature ceramic…

A: The atomic number of Cu is 29. hence the below shorthand noble gas configuration of Cu ( note : Cu…

Q: Germanium in silicon will be p-type or  n-type?

A: P-type semiconductors are those semiconductors in which the doping material used is from Boron…

Q: (a) List four physical characteristics of a solid metal. (b) List two chemical characteristics of a…

A: PHYSICAL CHARACTERISTICS: The properties of elements or compounds noticed without any change in the…

Q: What happens to h, the height of the mercury column, if theatmospheric pressure increases?

A: Barometer is an instrument used to measure the atmospheric pressure. Barometer usually consists of a…

Q: Modern commercial airliners are largely made of aluminum, a light and strong metal. But the fact…

A: Given : Hollow aluminium length = 64.0 m Hollow aluminium width = 6.2 m  Hollow aluminium thickness…

Q: C, graphite $) Caiamona(s) Cdiamon

A: Enthalpy of combustion is amount of energy released after 1 mole of substance completely burns in…

Q: What constitutes a lattice point

A:

Q: What is vitreous silica or fused silica?

A: Silica is silicon dioxide which is hard, brittle and it is used for making glasses.

Q: Explain the process of making an n -type and p -type semiconductor materials

A: p -type semiconductor : When a semiconductor ( Ge or Si ) is doped with electron deficient impurity…

Q: 3.00 grams of magnesium react with oxygen gas. Write the balanced equation. How many grams magnesium…

A:

Q: Which would you expect to be the more ductile element,(a) Ag or Mo, (b) Zn or Si? In each case…

A: Silver is a more ductile element than molybdenum. Ag has more valence electrons which makes the…

Q: Provide the correct formula for lead(IV) hypobromite

A: formula are written by using the fact that the oxidation number of cation and anion are cross…

Q: Variable electrovalency is shown by which block elements?

A: The distribution of electrons in atomic or molecular orbitals of an atom or of a molecule is known…

Q: Write the theory, state, and explain two properties and two applications on each topic you select.…

A: The theory, properties and applications of three topics from the given choices have been described…

Q: (a) Two unlabelled bottles are suspected to contain beryllium and magnesium. (i) Suggest a simple…

A: we are requiredto distinguish two metal magnesium (Mg) and beryllium (Be)

Q: Why does silica operate at highly temperature

A: Silica is widely used in industry. Since it can withstand high temperature.

Q: Nitrogen and phosphorus are elements from the same group. Which of the following reasons is NOT A…

A:

Q: What are Silicate Ceramics? Give some examples?

A:

Q: MCQ 19: Group IV clement that acts as an insulator is A. Carbon (Diamond) B. Tin (Sn) C. Lead (Pb)…

A: The energy gap between valance band and conduction band determines wheather an element will conduct…

Q: Crystalline: Diamond ; ____????____ : Graphite

A: Given: Crystalline: Diamond ; ____????____ : Graphite

Q: Whare are the aluminum oxide and magnesium oxide used?

A: The major uses of specialty aluminium oxides are in refractories, ceramics, polishing and abrasive…

Q: 1. What is the difference in melting characteristics between a pure metal element and an alloy…

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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: 9. Amorphous silica, SiO2, has a density of about 2.2 g/cm³, whereas the density of crystalline…

A: Answer - The amorphous material has less density then the crystalline material because the amorphous…

Q: What is metallic glass? Describe the features that promote high glass-forming ability in metals.

A: Metallic glass: It is an amorphous metal alloy. The atoms in the materials are decorated by…

Q: Silica is utilized in the production of a computer's CPU chip.

A: Computer's CPU chip is made of silicon.

Q: Modern commercial airliners are largely made of aluminum, a light and strong metal. But the fact…

A: Given, number of persons being carried = 400 average weight = 83  kg length of cylinder = 70.7 m…

Q: How do the appearances of metals, semiconductors and insulators differ? Why?

A: A question based on conductivity property, which is to be accomplished.

Q: Is Aluminium is commonly deliberately alloyed with iron? Why ?

A: Ans: we have to give tha answer that why aluminium is alloyed with iron ??

Q: Write balanced equations for the following reactions selenium dioxide with aqueous potassium…

A: A chemical equation is a short form notation which is generally used to indicate a reaction. In a…

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.