how and when do chemical reaactions occur?

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 13.2 cm^3 block of the me...

A: Given,  Density of Aluminium = 2.70 g/cm3  Volume = 13.2 cm3

Q: Which of the following is the staggered conformation for rotation about the C1-C2 bond in the follow...

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

Q: 19. For each of the following, explain how you would prepare 1.0 L of a solution that is 0.10 M in K...

A: As there are multiple questions with multiple subparts,  so as per our guidelines I will answer only...

Q: Using the above pattern, identify the circled electrons using the four quantum numbers. 回回画 [1 March...

A: There are four set of quantum numbers which describes or gives all the information about an electron...

Q: A reaction mixture initially has [SO3] = 0.150 M. What is the equilibrium concentration of SO2?   ...

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Q: +4~乙 MnO4 + Fe -) MnOz be Oxidilized to F Fe +7. Mn'or Mn or MnOy be reduced t

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Q: Rank the four groups (a-d) from highest to lowest priority using Cahn-Ingold-Prelog rules. a b -F H....

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Q: What is the mole to mole ratio between the K2C2O4⋅H2O and the precipitate? What is the mole to mole...

A: K2C2O4⋅H2O is potassium salt of oxalic acid and its name is potassium oxalate monohydrate CaCl2⋅2H2O...

Q: ng from 3-hexene? Br Br a. CH,CH,CHCHCH,CH; b. CH,CH,CH,CH,CH,CH, Cl c. CH,CH,CH,CHCH,CH, с. ОН d. C...

A: Reaction a.  Reaction of alkene with Br2 reduces the double bond and forms a dibromo product  Reacti...

Q: In the reaction Cet + Fe2* ==> Ce* + Fe+ Knowing that Fet +e ==> Fe2 E°= 0.767 V Ce** +e ==> Ce* E°=...

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Q: Explain what "acid rain" is and how it happens.

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

Q: Which of the following elements would be expected to have the greatest nonmetallic character? Group ...

A: Which of the following elements would be expected to have the greatest nonmetallic character?

Q: concentration of the solution. (c) the mass in grams of NiCl2 contained in each liter O. A 12.5% (w/...

A: As per our guideline, only one to be solved, if multiple questions are posted. Hence, question no. 9...

Q: Radioactive decay is a classic first order process. The half-life of 14C is 5,730 yr's. What is the ...

A: Given :-   half-life of 14C = 5730 yr's  reaction is first order To calculate :-  rate constant (k) 

Q: Broadening of Concept: 1. How partial pressure is determined in a mixture of gasses? 2. What will ha...

A: 1. How partial pressure is determined in a mixture of gasses? 2. What will happen to a gas when pres...

Q: If I have a 7M HCl solution, how many mL are needed from the stock solution to prepare 54 mL of a 2M...

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Q: Complete the table with the chemical name, chemical formula, and the type of compound these substanc...

A: We have to write the chemical formula,chemical name and describe what type of compound it is. 

Q: Which of the following distinguished scientists is correctly identified? There may be more than one ...

A: Adolf von Baeyer in 1885 gave the strain theory for cyclic compounds. He said more the angle of devi...

Q: Describe the process of catalytic cracking used in the petroleum refining industry

A: In the petrochemicals industry they are used for producing polyolefins on a very large scale. The pa...

Q: 8. Classify each alkene, alkyne., aromatic hydrocarbon, aleohol,ther ketone, carboxylic acidy of the...

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts fo...

Q: 3. At 900 °C, titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium...

A: 3. We need to write balanced equation and identify oxidation and reduction. 

Q: need a correct answer: What is the concentration of the original solution if 450 mL; a certain solu...

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Q: ing statements is true of the detection limit of an instrument?

A: The first question is based on antiquity, so instead of solving it, solve the second question with t...

Q: What is the freezing point depression of a 1.50 m solution of sucrose in water? No need to include t...

A: Given :- molality of sucrose solution = 1.50 m  To be calculated :- freezing point depression

Q: Q12

A: moles of HF = molairty x volume (l) moles of HF = 0.25 x 1 moles of HF = 0.25 moles of NaF = 0.25 x ...

Q: Consider the following chemical equilibrium: 2 PbO (s) +O2 (g) 2 PbO, (s) Now write an equation belo...

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Q: A 3.682 g sample solution. What is the pK* of the solution? O 1.20 O 0.85 O 2.50 1.35 « Previous Nex...

A: Mass of K2CO3 = 3.682 g Volume of solution = 375 ml  

Q: In a study of the rearrangement of cyclopropane to propene at 500 °C (CH2)3- →CH3CH=CH2 the concentr...

A: Step by step solution are below

Q: In stock is a 2 L of a solution that is 60% (v/v) alcohol in water. How many cc of pure alcohol does...

A: Volume of solution = 2L

Q: Glucose levels are routinely monitored in patients suffering from diabetes. The glucose concentratio...

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Q: Q. A 12.5% (w/w) NICI2 (129.6l g/mol) solution has a density of 1.149 g/mL. Calgulate(a) the molar c...

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Q: The exact mass of the analyte in a given experiment must have to be determined. What quantitative an...

A: The correct answers are given below

Q: Draw the bond-line structure of the given peptides 4. Ala-Val-Ser 5. Glu-Gln-Gly 6. Cys-Gly-Asn

A: A question based on molecules that is to be accomplished.

Q: A solution is prepared by dissolving 370 g of sucrose (C12H22011) in 642 g of water. What is the vap...

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Q: A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine diox...

A: Step 1.....fast:......2 ClO2 <==> Cl2O4 Step 2.....slow:....Cl2O4 + F2 ==> 2 FClO2

Q: a H d Select the correct stereochemistry for this molecule O R O s meso

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Q: give 2 examples of enthalpy, entropy, and Gibbs free energy.

A: Examples of enthalpy, entropy, and Gibbs free energy are given below

Q: Solve the principal-agent problem with a risk averse agent under the cost function c(a) = 0.5a. %3D

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Q: "hich of the following molecules has a net dipole moment of zero? Please select a H Ci Ci H. CI Ci H...

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Q: Calcium oxide and carbon dioxide react to form calcium carbonate, like this: CaO(s)+CO,(g)→CACO3(s) ...

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Q: Nickle has a face-centred cubic structure and has a density of 8.90 grams per cubic centimeter. The ...

A: The volume of single unit cell of Nickle can be calculated as

Q: How would I find the pH of the two-component solution 0.115 M in NaCl and 9.56×10−2 M in KF?

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Q: he H NMR spectrum of a molecule with molecular formula C3H,Cl, has a quintet at 2.19 ppm, and a trip...

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Q: If 1.45 J of heat are added to a 2.00 g sample of aluminum metal and the temperature of the metal in...

A: The mass of aluminum metal is = 2.00 g The increase in the temperature of the aluminum metal is = 0....

Q: If I add 28 mL of water to 187 mL of a 3 M NaOH solution, what will the molarity of the diluted solu...

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Q: Analyze 3 Major IR peaks. Using 1-2 peaks, justify compunds present.

A: A question based on IR spectroscopy that is to be accomplished.

Q: identify the mechanism

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Q: A reaction is zero order with respect to a reactant, Y. If k = 2.57 x 10-2 M/s and the initial conce...

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Q: When sodium hydroxide, NaOH, is dissolved in water, what processes occur? Select all that apply Hydr...

A: The attraction forces between the different molecules are known as intermolecular forces. Different ...

Q: A chemist makes 530. mL of copper(II) fluoride (CuF,) working solution by adding distilled water to ...

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