The halogen family, C ding. (p28)

Q: Formulas of alkalis only are given in a line: O a. NaOH, Ca(OH)2, Sr(OH)2 O b. LIOH, KNO3, NH4OH c.…

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Q: What is the % potassium in 1.0 mole of K2PTC16? (K= 39.1, Pt 195.08, CI = 35.45)? a. 1.6% b. 6.1%…

A: Given: Moles of K2PtCl6= 1.0 mol Molar mass of K = 39.1 g/mol Molar mass of Pt = 195.08 g/mol Molar…

Q: Assuming an unlimited amount of phosphorous (P4), how many grams of Mg are needed in order to…

A: Given, Magnesium is reacting with P4. How many grams of Mg is required to produce 1200.0g of Mg3P2 ?

Q: 18. What is the percentage by mass of carbon in the insecticide Lindane, C6H6C16? * 24.7 % 1.00 %…

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Q: which of the following is Correet fer stability onder of P6* and Pb +2 A) Pb 8) Pb = Pb+4 DINone

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Q: What will happen to calcium phosphate Ca3 (PO4) 2 when heated from 60 ° C to 100 ° C?

A: The solubility product of Ca3(PO4)2 is 2.0 X 10-29

Q: A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the…

A: Given : Mass of sample = 93.6 g Concentration of lead = 15.65ppm

Q: 3. Complete and balance the following equations:

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Q: 1 B,0, + 3 Mg → 3M9O + 2 B 5. (a) How many grams of boron can be obtained from 10.00g of B,0,? (b)…

A: Given balanced equation is as follows. 1B2O3+3Mg→3MgO+2B

Q: FeS + O2 -> Fe2O3 + _ SO2 O 4,7,2,4 8,15,4,8 2,3,1,2 none of these

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Q: Determine the name for N205.

A: Given :- N2O5 (chemical formula)  To determine :- name of the given compound

Q: What are the unique properties of nanoscale (1 nm ∙ 10∙9 m) materials?

A: Nanomaterials are the materials that have at least one dimension between 1 nm and 100 nm are called…

Q: Claim True / False Why 6 2 f(x) The hydrogen to oxygen mass ratio in C24H42O21 is 2 to 1. One mole…

A: No of Hydrogen in C24H42O21 = 42  No of Oxygen in C24H42O21 = 21 Molar Mass of Hydrogen = 1 g/mole…

Q: What is the atomic mass of C₂H10ON2? O 64.108amu O 73.075amu 78.115amu O 66.104amu

A: Given, Atomic mass of C2H10ON2 = ? Note: Atomic mass of C = 12.011 amu Atomic mass of H = 1.00784…

Q: What is the chemical name for NiBr2?

A: NiBr2 is the inorganic compound. it is a yellow-brown solid which dissolve in water to give…

Q: Which of these three elements ( Cl2, Br2, I2) is most volatile?

A: The volatility of a compound depends on the intermolecular force present in it. The higher the…

Q: Chemical formula of Pb2+ and CO32-

A: Chemical formula of a compound can be formed by criss-crossing the valencies of ions.

Q: Chemistry Question

A: Principle: According to Dalton's law of partial pressures, the total pressure of the gases is equal…

Q: write ће тирас Name K+ [2₂ (1₂0) (1) TCCB, CN), 2 Hg (H₂)₂ OHJON Each of the Following

A: RULES FOR IUPAC NAME:- Name ligands and arrange according to alphabetical order. Add prefix for…

Q: Suggest the formula of the acif used to prepare ca3(po4) 2

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Q: 14. Chromium, like most heavy metals, has damaging effects on wildlife. What mass (in grams) of…

A: Given data chromium concentration = 75 ppm total mass = 6.0 kg we know that ppm is defined as part…

Q: Make the structure based on the Blomstrand-Jorgensen Theory and Werner Theory also calculate the…

A: Effective atomic number (EAN): According to this rule,the ligands donate t+ electrons to the central…

Q: What is the name for WO3?

A: • We need to provide the name of WO3

Q: Fe= 55.15 o=16.08 N= 14.11g give molecules, atoms and ions in .650moles of Fe(NO2)2 please show…

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Q: How many grams of PbSO4 ( Ksp = 2.53 x 10A -8, Fwt 303 g/mol) could dissolve in 1 L of water? Select…

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Q: Chemical formula of Mg2+ and CO32-

A: Writing chemical formula of ionic compounds :- Electrical neutrality principle is used while writing…

Q: Explain the importance and applications ofshape memory alloys

A: Shape memory alloys are those alloys which can be deformed on cooling but return back into their…

Q: الإنجليزيةv الإنجليزية .1M were I of o.IM

A: 0.1mol of acid React with 0.1 mole of base to give 0.1mol of NH4Cl salt in 2.0L Solution ( means…

Q: In the following reaction, identify X. U (15n, X)*Es 253 O 7b За O 4n 7.e О 15p

A: 92238U  →___ +  99253EsAfter 15n emission the reaction will look like, 92238U  → 15  01n  +…

Q: What chemical is described as 1MH2SO4?

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Q: The name of P205 is_ A diphoshorous pentoxide B phoshorous dioxide diphoshorous oxide phosphate

A: Answer The name of P2O5 compound is

Q: V = (2a/x)!/de-ar². , =?

A: Given  ψ = (2a/π)1/4e-ax2 let us assume the limit of x varies from -∞ ≤x≤∞ To find average of x2 and…

Q: MCQ 176: The process of decomposition of calcium carbonate (CaCO,) and formation of calcium oxide…

A: Decomposition reaction of CaCO3 is, CaCO3 ----> CaO + CO2

Q: What is equivalent weight of Hydrochloric acid if you know the atomic weight H = 1, Cl = 35.5

A: The given data- The molar mass of Hydrogen = 1 The molar mass of chlorine = 35.5 To calculate =…

Q: which cation in KAlSi308 could Sr^2+ substitute for? In order for this substitution to occur, what…

A: Given : We have to tell what will happen when KAlSi3O8 reacts with Sr2+ .

Q: Predict the chemical formula for the ionic compound formed by Hg₂²⁺ and CO₃²⁻

A: The type of chemical bonding that consists of the electrostatic interaction of oppositely charged…

Q: How many grams of Ba(103)2 (487 g/mol) can be dissolved in 300 ml of water at 25 C. (Ksp of Ba(10,),…

A: Given that:  Ksp of Ba(IO3)2 = 1.57×10-9 Ba(IO3)2(s) <.....> Ba2+(aq) + 2IO3-(aq) Let S is the…

Q: How many hydrogen atoms are in 1.0 g of H20 (MW = 18)? %3D

A: Given :- amount of H2O = 1.0 g  Molar mass of H2O = 18 g/mol  To calculate :-  Total hydrogen atoms…

Q: (a) What are the central metal ions in chlorophyll, heme,and vitamin B₁₂? (b) What similarity in…

A: The given problem deals with Bio-Inorganic chemistry. It is the branch of chemistry which involves…

Q: What is the milliequivalents of 0.980 g of Na2CO3 (MW=105.99)?

A: Given the milliequivalents of 0.980 g of Na2CO3 molar mass of Na2CO3, MW=105.99 g

Q: None

A: This question is related to toxicity of PAHS.

Q: Consider the reaction in the Haber process 3H2 (g) + N2 (g) → 2NH3 (g)where delta H° = -91.8 kJ/mol…

A: At a given temperature, pressure, as well as number of atoms, the Gibbs Free Energy discusses a…

Q: Draw the electron configuration for: Pb Fe2+

A: Lead (Pb) : [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p² Fe2+ : [Ar] 3d6

Q: 43. Which of the following could most likely serve as an ionophore? II IV А) I B) II С) ш D) IV

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Q: What is the concentration of 1.50 molles ck sodiom chicra |(NCCI) in 2.00 liters of water?

A: given, moles of sodium chloride = 1.50 moles volume of solution = 2.00 Litres

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.