Fill in the blanks:(a) The symbol and atomic number of the heaviest alkaline earthmetal are_____ and ____.(b) The symbol and atomic number of the lightest metalloid inGroup 4A(14) are ___and___ .(c) Group 1B(11) consists of the coinage metals.The symboland atomic mass of the coinage metal whose atoms have thefewest electrons are__ and__ .(d) The symbol and atomic mass of the halogen in Period 4 are__and___ .

Q: Rank the following dienes in order of increasing heat of hydrogenation.

A: The order of increasing heat of hydrogenation in dienes is as follows: Compound 2  and compound 4…

Q: 3. Consider the sample space S = {copper, sodium, nitrogen, potassium, uranium, oxygen, zinc} and…

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Q: Chromium(IV) oxide is used in making magnetic recording tapes because it is paramagnetic. It can be…

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Q: Does the size of an ion affect the magnitude of the activity for varying ionic strengths?

A: Ionic strength is basically the number of ion concentrations in a solution. It is denoted by the…

Q: Draw the Lewis structure for acetamide, CH3CONH2. What are the electron-pair geometry and molecular…

A: The molecule shape can be predicted by the number and order of electron pairs around a core atom.…

Q: The unit cell for MgFe2O4 (MgO-Fe2O3) has cubic symmetry with a unit cell edge length of 0.836 nm.…

A: It is required to determine the number of formula units per unit cell of Fe3O4. Here p is the…

Q: A steel alloy is known to contain 93.8 wt% Fe, 6.0 wt% Ni, and 0.2 wt% C. Assume that there are no…

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Q: 231 is the product of alpha emission. It is rad

A: Given:- Thorium-23 To find:- (a) the parent nucleus of Th-231. (b) the daughter product of Th-231…

Q: 5. Gibbs free energy is also known as

A: To find : Other name of Gibbs free energy.

Q: Construct a Frost circle for a planar seven-membered ring with one 2p orbital on each atom of the…

A: Given: Construct a Frost circle for a planar seven-membered ring with one 2p orbital on each atom of…

Q: Is SOCl2 a binary compound?

A: Binary compound is a compound which comprises of two elements. The word bi in the word binary…

Q: Mg(s) |Mg2+ || NO3- (acid soln)| NO(g) How many total electrons are transferred in this REDOX…

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Q: 2. In a copper-nickel system as shown in figure, an alloy composition of 35 wt% Ni was cooled down…

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Q: 106) which gives the stainless steel property? A) chrome B) vanadium C) molybdenum D) manganese E)…

A: Introduction : Stainless steel is the “green material” par excellence since it is completely and…

Q: The volume of a tetrachloride having a mass of 1200 kg is 0.952 m^3, compute the specific gravity.

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Q: According to valence bond theory, what set of orbitals is used by a Period 4 metal ion in forming…

A: Given: a) Square planar complex formed by period 4 metal ion b) Tetrahedral planar complex formed by…

Q: A niobium alloy is produced by introducing tungsten substitutional atoms in the BCC structure. The…

A: Given data: The atomic weight of tungsten is 183.85 g/mol and of niobium is 92.91 g/mol. The density…

Q: C/ Bismuth (Bi) was melted at 2710C and tin (Sn) was melted at 2320C. Bismuth and ten are formed a…

A: Consider these points 1.) At eutectic point, liquid transform into two different solid states on…

Q: Which magnetized material cannot be easily demagnetized? a. soft iron b. hard iron

A: The property of soft iron: Material has low retentivity, less hysteresis, and high saturation…

Q: 8. One of followings is NOT Inorganic pollutant: a. Phenois (bHeavy metals C. cyanide d. Sulfides

A: Phenol is totally an organic compound.  So,  Phenol  is not an inorganic pollutant.

Q: 4. A bimetallic is generally utilized to measure stagnation temperature a) Transistor b) Thermometer…

A: This question is related to the Stagnation Properties of Fluids from Fluid Mechanics.

Q: It is a complex of inorganic matters that may or may not contain organic decomposed organic residues…

A: It's conceptual question asked to define the term Soil.

Q: 5. Gibbs free energy is also known as a) Free energy b) Free entropy c) Free enthalpy d) Free motion

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Q: 1 It denotes the shape and formof minerals ? * Your answer O This is a required question 2…

A: Note- Since we only answer up to 3 sub-parts, we’ll answer the first3. Please resubmit the question…

Q: vvnat is the number of protons, neutrons, and electrons for element has; atomic number 9, mass…

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Q: Thermal mass refers to materials have the capacity to generate thermal energy for extended periods…

A: Select True or False

Q: Which of the following is demensionless (a) specific weight (b) specific volume (c) specific speed…

A: Specific gravity is defined as ratio of density of object to be measured to the density of reference…

Q: For the solidification of iron, calculate the critical radius r* and the activation free energy ΔG*…

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Q: An over-potential of 250 mV is applied to platinum in an aqueous and electrolyte. What would be the…

A: Introduction : Mass spectrometry, gas chromatography, and amperometry have all been used to track…

Q: Sel 10 only: 1. Which one has low Si + Al elements, land Earth crust or oceanic Earth crust? 2.…

A: 1) heavier minerals are found in lower parts of crust. But mineral like Al are not found in oceanic…

Q: Calculate the unit cell edge length for an 57 wt% Ag- 43 wt% Pd alloy. All of the palladium is in…

A: Given data: The atomic weight of Ag is 107.87 g/mol and of Pd is 106.4 g/mol. The room temperature…

Q: Calculate the radius of the aluminum atom, given that aluminum has an FCC crystal structure, a…

A: Given data: The formula of density:

Q: or a certain ionic bond, energy - interionic distance relationship is given by llowing equation:…

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Q: A.) What is the approximate concentration of free Ag+ ion at equilibrium when 1.43x10-2 mol silver…

A: Given: Concentration of AgNO3=1.43×10-2 MConcentration of CN-=1.08 M

Q: Question 1 An atom in the ground state O has all electrons in the n 1 orbit O has all electrons in…

A: NOTE- We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: which is stable among the two

A: Given: Two different cones of dimensions H = 30 and R = 25.  To find: Which cone is stable?

Q: 1. Give the number of protons, the number of neutrons, and the neutron-to-proton ratio for each…

A: Given   Fe-57Fe2657atomic number = 26Protons = electrons = 26mass number = 57Protons + neutrons =…

Q: For the solidification of iron, calculate the critical radius r* and the activation free energy AG*…

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Q: A magnesium-lead alloy of mass 6.4 kg consists of a solid a phase that has a composition just…

A: given data; wieght of alloy = 6.4 kg  solid alpha phase solubility limit = 300 degree c

Q: Which of the following most nearly gives the maximum safe value of P in kiloNewtons. *

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Q: Primary Bonds Three types of primary bonds are defined, based on the manner in which the valence…

A: To create a more stable electron configuration, primary bonds entail sharing or giving electrons…

Q: H.W3: Predict the ideal solubility of lead in bismuth at 280°C given that its melting point is 327°C…

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Structure of materials

The word ‘structure’ means the thing that is built or constructed from combining the different interrelated parts on a definite location on the ground surface. The structure should be able to possess sufficient rigidity against the external loads that are applied to it.