Element X adopts a body-centered cubic crystal structure. What is the coordination number of one atom of X? 8 12 answer not listed

Q: Calculate the heat of reaction AH for the following reaction: 2 CH₂(g) + 30₂(g) 2 CO(g) + 4H₂O(g)…

A: Given -> 2CH4 (g) + 3O2(g) ---> 2CO(g) + 4H2O(g) B.E(C-H) = 413 KJ/mole  B.E (O=O) = 498…

Q: Consider a bcc lattice, with cube side length a = 0.83 nm. What is (approximately) the linear…

A: We need to find the linear Density along the close packed direction of the bcc lattice. Edge length…

Q: What mass of precipitate (in g) is formed when 55.8 mL of 0.500 M AIBr, reacts with excess AgNO, in…

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Q: Which transition metal ion has a noble gas electron configuration? O CO3+ O V5+ O Zn²+ Mn4+ Cu²+

A: To solve this problem we have to write the electronic configuration of the given ions .

Q: 0.555M solution of NaF, what is the pH?

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Q: ▼ Part A For the reaction 2Co³+ (aq) + 2Cl(aq)→2Co²+ (aq) + Cl₂ (g). E = 0.483 V what is the cell…

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Q: balance the following redox reaction if it occurs in basic solution. what are the coefficients in…

A: Rules of balancing chemical reaction:

Q: What would the effect on the specific heat of your metal if one drop (0.05mL) of water at 100…

A: Specific heat is minimum amount of heat required to increase the temperature of unit mass of…

Q: σ᾿ px περ. Περι στρα σας σας ΠΕΡΙ ΠΕΡΙ 80

A: The formula of peroxide is O22-.

Q: Calculate the frequency and wavelength of light, that is associated with the transition form n=2 to…

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Q: Calculate the molar mass of the following substances. Molar Mass = b. Mg3(PO4)2 Molar Mass = c.…

A: Molar mass of given compounds can be calculated as:

Q: Determine the mass of precipitate, in grams, that forms when 55.3 mL of 0.0424 M Na2CO3 reacts with…

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Q: Which one of the following compounds does not follow the octet rule? A) NF3 B) CO2 C) CF4 D) Br2 E)…

A: Given some molecules a) NF3 b) CO2 c) CF4 d) Br2 e) NO2 We have to choose that molecule which does…

Q: Determine the mass of precipitate, in grams, that forms when 66.9 mL of 0.0459 M Ba(ClO4)2 reacts…

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Q: The diffusion constant for the amino acid glycine in water is 1.06 × 109 m²/s. In a 2.0-cm-long tube…

A: Given, Diffusion constant for amino acid and glycine in water , D =1.06 ×10-9m2s tube length , l =…

Q: Classify the acidity of nitric acid, HNO3, based on its reactivity in aqueous solution. Choose 1…

A: HNO3  is a strong acid. A strong acid is that which completely ionises in aqueous solution.

Q: A 12.39 g sample of phosphorus reacts with 42.54 g of chlorine to form only phosphorus trichloride…

A: we have to calculate the mass of product formed we have to calculate mass of excess reactant that…

Q: Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 83 ∘C , where [Fe2+]= 2.90 M and =[Mg2+]=…

A: In the given question we have to calculate the reaction quotient and number of electrons lost or…

Q: FeS COS CdS Ksp 8.01x10-19 Ksp = 5.0×10-22 Ksp = 1.0x10-27 The sulfide concentration at which the…

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Q: Calculate the amperage required to deposit 41.7 grams of nickel (AW=58.69) from a solution of…

A: we have to calculate the current needed to deposit nickel from the solution

Q: Calculate the pH of a 0.17 M solution of HCIO, with Ka = 3.5x10-8. Type your numeric answer and…

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Q: Calcule la energía cinetica promedio por mol, , para el gas O₂ a una temperatura de 15.00 °C.…

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Q: QUESTION 7 What is the product of the following reaction? a. O a O b O c Od 1. 2. 03 Zn, H₂O* b. ہیں…

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Q: QUESTION 11 What product would you expect to obtain from addition of C12 to…

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Q: Which set of quantum numbers (n, l, me, ms) is correct when n = 3? O3,1,-1,-1 3,3,-1,-1 3,1,2,-2…

A: Correct answer -->  3,1,-1, -1/2

Q: Which situation below results in the smallest dipole moment? O +2 and -2 charges separated by 400 pm…

A: In the given question we have to identify the situation which is the smallest dipole moment,  we…

Q: 2. List the total number of pl (x)and sigma (a) bonds in the following molecule H-C=C-C C-H o bonds:…

A: Total sigma bond = 5 Total pi-bond= 4

Q: Part E What is the cell potential for the reaction at 83 °C when [Fe²+] = 2.90 M and [Mg2+] = 0.110…

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Q: Are these the same molecule? same molecule isomers different molecules ~

A: Isomers have same chemical/molecular formula but different arrangement or attachment of…

Q: Calculate E for a battery at 25 0C when [H+]=[HSO4-]=5.6 M, and at 25 0C Ecell0=+5.64 V. The overall…

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Q: a redox reaction used in an electrochemical cell has a negative standard free energy change, ▲G°rxn.…

A: We are given a situation that suggests a redox reaction has a negative standard free energy change…

Q: determine the oxidation number (oxidation state) of each element in the compound CuCO3. for your…

A: Oxidation state of an element is the charge which would have arised on the element if all the bond…

Q: For the reaction shown, select the expected major organic product. | B || D IV V || H₂ Lindlar's…

A: Lindlar’s catalyst transform an alkyne to cis alkene as the hydrogenation reaction is occurring on…

Q: Rank the following atoms in order of increasing size (i.e., smallest to largest): Li, Al, Be, Ba, O.…

A: We know that atomic size increases from right to left and from top to bottom in the Periodic Table.…

Q: What would be overall reaction for a fuel cell that uses CH4 as the fuel?

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Q: 5. List down the differences between graphite and diamond F

A: Graphite and Diamond both are allotrope of carbon. Both are crystalline in nature. Both has covelent…

Q: rank the following in order of decreasing ionization energy: Fr, P,Ca,Cl

A: Ionization energy (EI): When an electron is removed from the outermost shell of an isolated gaseous…

Q: For the reaction 2Co (aq) + 2Cl(aq) +2Co²+ (aq) + Cl₂(g). E=0.483 V what is the cell potential at…

A: We will use the Nernst equation to calculate the Ecell E=Eo-RTnFlnQat 25ocE=E0-0.0592nlogQ the given…

Q: Which of the following is a structure for octa-3,6-dien-1-yne? A HC=CCH=CHCH=CHCH₂CH3 B)…

A: we have to select the correct structure for octa-3,6-dien-1-yne

Q: What volume in milliliters of 0.100 M HCIO, is required to neutralize 40.0 mL of 0.235 M KOH?

A: In order to neutralize KOH, the millimoles of HClO3 must be equal to millimoles of KOH. we first…

Q: At constant volume, the heat of combustion of a particular compound is -3549.0 kJ/mol. When 1.561 g…

A: we have to calculate the calorimeter constant.

Q: choose the atom which is larger based on its periodic trend. or Bi - or Te or Cr³+ ² or Te².

A: We have been given four pair of atoms and we have to choose which atom is larger in each pair of…

Q: Use the following starting material and any other non organic materials to create the target…

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Q: Draw and upload a picture of KCl and one of MgO at the atomic level. Include at least 4 formula…

A: We need to draw the picture of KCl and MgO at the atomic level. These are solid substance and hence…

Q: Consider the following phase change equilibrium: CHCl3 (s) CHCl3 (1) If AHO is 9.03 kJ/mol and ASº…

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Q: What mass of gold is produced when 16.8 AA of current are passed through a gold solution for 10.0…

A: This question is based of Faraday first law of electrolysis. Given: Current= i = 16.8A Time= t = 10…

Q: What volume, in L, of 0.209 M NiCl2 solution is required to produce 69.4 g of precipitate.…

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Q: + Cell Potential and Equilibrium The equilibrium constant, K. for a redox reaction is related to the…

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Q: which do you think is more stable, Be or Mg

A: We need to compare the stability of Be vs Mg. That is we need to predict is more stable, Be or Mg.

Q: Is the configuration of the following molecule R or S? H Select one: OA. S OB. R SIRAY

A: •Here given a compound for which we have to decide configuration. •For configuration we give…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.