Is it necessary to bleach hair prior to application of a hair dye? Explain.

Q: Different polymers have different properties. Explain

A: Polymer is a big molecule or macromolecule which is essentially a combination of many subunits. Poly...

Q: Conclude aspirin synthesis in past tense

A: Aspirin can be synthesized as follows 

Q: can someone draw the mechanism for me? I knew NaOCH3 added a molecule but I always assumed a halide ...

A: Here NaOCH3 acts as base to form enolate ion with the given ester molecule. Then this enolate attack...

Q: Choose among the choices (an) example/s of (an) amphiprotic species. a.    HCl b.    Glycine zwitter...

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Q: 2N20(g) + N2H4(9) = 2H20(g) + 3N2(g) If Ke for the above reaction is 36.94 at 197.9 K, what is Kp fo...

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Q: The following information is given for antimony at latm: boiling point = 1440 °C AHvap(1440 °C) = 19...

A: The ∆H of freezing = 4.81376 KJ.

Q: BALANCE THE FOLLOWING REDOX REACTIONS (2) HNO» NO I: (acidic)

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Q: Calcium crystallizes in a face-centered cubic lattice. The radius of calcium is 196 pm. What is the ...

A: Ca crystallizes in FCC lattice.The radius of Ca is 196 pm.We have to calculate the edge length of th...

Q: For Questions la to 1d, refer to the equilibrium given below in which all reactants and products are...

A: Given reaction--- CH4(g) + H2O(g) <------> CH3OH(g) + H2(g) + heat  Heat on the right side rep...

Q: which has higher boiling point? H2o or C8h18

A: Which has higher boiling point H2O or C8H18 is given below with explanation.

Q: 1. Referring to your previous learning, how many signals would you expect to see in the 13C NMR of e...

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Q: A reaction is found to be second order with a rate constant of 3.45×10^-5 M^-1s^-1. The reaction beg...

A: Given that, Order of reaction = 2nd order  Rate constant k = 3.45 × 10-5 M-1 s-1 At, t= 0 second, [A...

Q: Use unit analysis to show how to calculate the volume occupied by 19.2 grams of gold.

A: Given :- mass of gold = 19.2 g               Density of gold = 19.28 g/mL To calculate :- volume occ...

Q: 1. Calculate the bubble point of an ideal mixture of 40 mol% butane and 60% hexane at atmospheric pr...

A: Given  The ideal mixture contains 40 mol% butane and 60 % hexane. The bubble point has to be calcula...

Q: Sulfur dioxide is a precursor compound for the production of which species that lead to the decompos...

A: Chlorine monoxide radical is a radical having chemical formula ClO• This radical plays an important ...

Q: 3. What is the final temperature of 100 g of ice at -5 °C added to a styrofoam cup filled with 2500 ...

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Q: Why will C2H6N not fulfill the octet rule since it exceeds the maximum number of Carbon and Nitrogen...

A: Carbon forms 4 bonds since it needs 4 electrons to complete its octet. Similarly, Hydrogen needs onl...

Q: Al203 (s) =2AI3* (aq) + 302- (aq) If, at equilibrium, a beaker contains 1.00 L of solution with 13.8...

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Q: A titrant solution of KMNO4 was standardized with 0.2g of Na2C2O4 amd consumed 27.75 mL to reach end...

A: Given that, a titrant solution of KMnO4 was standardized with 0.2 g of sodium oxalate (Na2C2O4) and ...

Q: bleach

A: In this question we have to explain that the difference between a bleach safe for white clothes and ...

Q: Enter your answer in the provided box. How many milliliters of a 0.217 MHC1 solution are needed to n...

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Q: Which two species act as the acids in the following reaction? HF CH3CO0 2F+CH3COOH OA CH3COO, F¯ O B...

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Q: If the reaction with the following potential energy diagram were catalyzed, the effect would be to: ...

A: Catalyst is the substance which doesn't get used in the reaction. 

Q: Which two species act as the bases in the following reaction? HPO42-(aq) + NH4*(aq) 2 H2PO4-(aq) + N...

A: According to Bronsted-Lowry concept,  Acid is a substance that has a tendency to donate a proton to ...

Q: Draw the following in a short bond paper. Please attach your final answer to this document 1. 2,3-di...

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Q: The solubility of a novel compound  at 25 °C is 5.00 g/mL in water and 25.00 g/mL in ether. Calculat...

A: Solution is given below in next step 

Q: gaseous water (H,O). What is the theoretical yield of carbon dioxide formed from the reaction of 2.6...

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Q: A5. Alkali metals also react readily with oxygen in the air to form an oxide coaling. Write a balanc...

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Q: Determine the molar concentration of a Ca(OH)2 solution whose pOH is 3.47 at 25.0 °C. (the answer sh...

A: To calculate molar concentration of Ca(OH)2 , we would first calculate concentration of OH- using th...

Q: A second-order reaction starts with an initial concentration of 0.020 M of the reactant. If the rate...

A: Chemical kinetics is branch of chemistry which deals with the speed at which rate of reaction occurs...

Q: Given the following proposed mechanism, predict the rate law for the overall reaction: 2 NO2 + Cl2 s...

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Q: The reaction 2 NO2 2 NO + O2 is postulated by the following mechanism. NO2 + NO2 → NO + NO3 (slow) N...

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Q: At 3000 K, the partial pressures of A, B and C are 0.6, 0.4 and 0.2 atm, respectively. Calculate Go ...

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Q: Which one of the following statements about solid Cu (face-centered cubic unit cell) is incorrect? O...

A: an fcc unit cell the total number of atoms is:(a) 8 corner atoms with each one contributing 1/81/8 o...

Q: How many grams of Cu(OH)2 will precipitate when excess NaOH solution is added to 72.0 mL of 0.578 M ...

A:

Q: For the following reaction, 23.1 grams ofcarbon disulfide are allowed to react with89.2 grams of chl...

A: Given,  Chemical reaction:  CS2(s) + Cl2(g) ------> CCl4(l) + SCl2(s)   

Q: Which one of the following statements about solid Cu (face-centered cubic unit cell) is incorrect? O...

A:

Q: 2-Octanone INFRARED SPECTRUM 0.8 0.6 0.4 0.2 3000 2000 1000 Wavenumber (cm-1) ST Chemistry WehRook (...

A: IR spectroscopy is the technique which is used to determine the functional groups present in the giv...

Q: 0.5 →Y 0.67

A: Step-1:   Identify the intercepts on the x-, y- and z- axes. In this case the intercept on the x-axi...

Q: 24

A: To select correct statement for given energy profile diagram. The given energy diagram involve two t...

Q: uestion 13 Rank the following bases in order of INCREASING base strength: Base Kb I. F 1.6e-11 II. (...

A:

Q: Procedure: Determine the correct weight of the empty graduated cylinder (measuring device). Fill u...

A: Determine the correct weight of the empty graduated cylinder (measuring device). Fill up the cylinde...

Q: A Moving to another question will save this response. Question 3 Fuel engineers use the extent of th...

A: The given equilibrium reaction is as follows: CO2g + H2g ⇌ COg + H2Og

Q: 100 HA dissociates 50% when pH is equal to the pK 90- 80- 70- 60 50 40 30- pKa = 5 20 10- 3 4 5 6 7 ...

A: This is plot of acid, HA percentage dissociation plot along with pH. 

Q: Given 60.00 g of the compound in 60.00 mL water. Calculate amount extracted using multiple (2 x 50.0...

A: Concept- In a multiple extraction procedure, a quantity of solvent is used to extract one layer mult...

Q: Determine how the following changes affect the given equilblirium reaction that is held in a closed ...

A: The effect of physical changes on an equilibrium reaction can be explained on the basis of Le chatli...

Q: What is the conjugate base of H3PO4? OA H2PO42- А. OB. HPO42- OC.OH O D.PO43- O E. H2PO4

A: Write conjugate base of H3PO4 ?

Q: 1. Give the IUPAс пате of the following compounds: (al DI HyC=CHCHCCH, CHyCH;CH- CH,CH, (c) (d) CH,C...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: IV. Fill up the numbered spaces (only) in the table below. Type your answer for the functional group...

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Q: 1.    A Brønsted–Lowry acid is a     ? a.    Proton donor b.    Proton acceptor c.    Electron-pair ...

A: The substance that donate proton (H+ ion) is know as Bronsted Lowry acid and the substance that acce...

Types of Polymers on the basis of Method of Preparation