If copper is able to displace magnesium, and magnesium is able to displace lead, what does this mean about the relative reactivities of copper and lead? Explain.

Q: Biomolecular Signaling Hydrogen sulfide and nitrogen monoxide can act as signaling agents in living ...

A: (a)  Rate of reaction = change in conc of species / time taken For avg. conc.,lets take initial and ...

Q: Che addition of sodium nit olution to the Lassaigne" produces violet colourat ignifies the presence ...

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Q: A 0.5043 g of unknown acid was titrated with 27.35 mL of 0.5645 N NaOH solution. Calculate the equiv...

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Q: a) Determine the grams of reagent in excess if 4.19 moles BiCl3 reacted with 0.970 moles water. b) W...

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Q: diffusion

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Q: (H'] pH РОН 1.0 х 10 [OH] 3.6х 10° 6,21 4.84 5.1 х 10

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Q: QUESTION 8 Which of the following spectroscopic measurements is not consistent with cyclohexanecarba...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: Determine the pH of a solution that is 0.50 M in Ch3COOH and 0.75M in NaCH3COO Ka for CH3COOH = 1.8...

A: Given:- Determine the pH of a solution that is 0.50 M in Ch3COOH and 0.75M in NaCH3COO Ka for CH3COO...

Q: Which of the following linear molecules islare polar molecule/s? (a) HF (b) CIF (c) CO (d) Si02 a a ...

A: 1. Option B       a and b    ( HF and ClF) 2. Option B.  

Q: 3. Define corrosion current, corrosion product and electrochemical theory of corrosion.

A: Corrosion current is defined as the current produced in electrochemical cell due to occurrence of co...

Q: How many mL of 0.623 M ammonium nitrate will reaction with 72.12 mL of 0.823 M iron (II) sulfate? 6 ...

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: pH

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Q: Many power plants produce energy by burning carbon-based fuels, which also produces carbon dioxide. ...

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Q: Which of the following properties of elements increases from top to bottom?* ionization energy elect...

A: Atomic radius: The distance between the nucleus and the outermost electron is known as the atomic ra...

Q: How many grams of NaF (41.98817 g/mol) would have to be added to 2.00 L of 0.100 M HF (20.01 g/mol) ...

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Q: (@) (€) Complete the following synthesis road map by (i) providing the structures of the major organ...

A: Here we have to write the reagent required and products formed in the sequence of reactions.

Q: Mark and John, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Titration analysis [Here KOH is the standardized titrant that has been first standardized using KHP]

Q: 8) The equilibrium constant K for a certain chemical reaction has been determined experimentally and...

A: Introduction: We have the following equations,                            ∆G0 = ∆H0 - T∆S0 At the eq...

Q: Q3. A sample consisting of mono atomic ideal gas at 1 atm and 25C" expand adiabatically and reversib...

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Q: a) Predict the structure of the major product(s) formed in each of the following reactions: (i) Br2 ...

A: Since you have posted multiple sun part questions, the answer for first subpart is given below. Kind...

Q: Why can a Pb sample accommodate more Sn atoms in its microstructure compared to how many atoms of Pb...

A: Lead (Pb) has an atomic number of 82 and a high density. Its crystal structure is face-centered cubi...

Q: What volume of 0.500M NaOH is required to react completely with 5.00 g Al(NO3)3

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Q: 4. Predict the major product of each of the following reactions: (a) (b) CN (c)

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Q: In a salt that exhibits an exothermic reaction upon dissolution, increasing the temperature will   i...

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Q: One ingredient in some antacids is Al(OH)3  which reacts with stomach acid, HCl .  Complete and bala...

A: Neutralization reaction: The hydrogen ion of acid reacts with the hydroxide ion of a base to form sa...

Q: A solution containing Mg2+ was buffered to pH 9.97 and titrated with EDTA. Eriochrome black T, with ...

A: Eriochrome black T is a diprotic acid, represented as H2E.

Q: 1. Substance X dissolves in Substance Y. Which of the following statements is true?   a.Substances X...

A: Like dissolves Like. So the molecules with similar nature will dissolve orelse not.  we are advised ...

Q: Calculate the pH of a 0.40 M CH3COOna solution. Kb for CH3COO- = 5.6*10^-10. (Show the dissociation ...

A: First calculate the OH- ions concentration in the solution, and then pOH and then the pH of the solu...

Q: 1. Balance the equation: - Cl: + KOH - KCI + KCIO, + H:O 2. The chemical name for Ag:CrO. 3. How man...

A: You have posted multipart of question as per the guidelines i have solved first three subparts kindl...

Q: Which of the following compounds are organic? Check all that apply. SO2 O Cu(NH3 )6 Cl2 OC6H120 CH3F...

A: Identify the organic compound ?

Q: lon-dipole interaction Dipole-dipole interaction lon-ion interaction Induced dipole-dipole interacti...

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Q: Below are the reduction half-reactions that represent the half-cells of a voltaic cell. I2 + 2e- → ...

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Q: Rank the following alkyl chlorides in order of reactivity (fastest to slowest) in the SN1 reaction p...

A: Carbocation is species in which carbon is carrying negative charge on carbon. 

Q: Problem 1: Draw the mechanism for the nitration of methyl benzoate as shown in the figure. Indicate ...

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Q: Account for (explain the reason for) the difference in acidity. HO-AS-OH HO-As-OH OH pKa= 2.12 pka=7...

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Q: 2) Provide acceptable names for the following structures: | CH,—С—NН— Ph Ph — О—С- СH;

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Q: 12. In which of the following does sulfur have the highest oxidation state? A) SO: B) Ss C) H:SO4 D)...

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Q: 05: A kerosene sample has boiling range of 180-225°C and specific gravity of 0.793. This product has...

A: Streak point is the most reduced temperature at which a compound can disintegrate to shape an ignita...

Q: Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic s...

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Q: oxidized

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Q: Graph 1 Graph 2 Graph 3 Timo Timo Timo

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Q: Q3. A sample consisting of mono atomic ideal gas at I atm and 25C" expand adiabatically and reversib...

A: Introduction: For an adiabatic process, the change in heat, ∆Q = 0 Therefore, from the 1st law of Th...

Q: The gas phase decomposition of dinitrogen pentoxide at 335K N205(9)→2 NO2(g) + ½ 02(g) is first orde...

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Q: The following data are for the decomposition of hydrogen peroxide in dilute sodium hydroxide at 20 °...

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Q: H202(g) H20(g) + ½ 02(g) is second order in H202 with a rate constant of 0.650 M-1 s-1. If the initi...

A: H2O2 ->H2O +1/2O2 Rate constant=0.650M^-1s^-1 Initial Concentration of H2O2=0.246M Time = 24.0 se...

Q: 1. Balance the equation: - C2H2 + O2 → CO2 + H2O 2. The chemical name for AAL2(SO4) 3. How many prot...

A: Since you have posted multiple questions, the answer for first three question is given below. Kindly...

Q: 21) Give the products of the following reaction. CH3 HN H3C `H + CH3 H3C ČH3 H3C°

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Q: 1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state...

A: Entropy of a system is the measure of randomness. Higher disorder the system, higher is the entropy.

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.