1. L.DA/THF 2. CH Br

Q: Which of the following statements is TRUE regarding colligative properties in solution? Select one:…

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Q: A titration experiment has an equivalence point near pH = 9.0. What indicator should be used for…

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Q: Part A: Volume of Cyclohexane mL Mass of cyclohexane (d= 0.7786 g/mL) 6.0 Freezing Point of…

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Q: The radius of the oxygen anion (O“) at 140 pm (larger than the neutral atom, 66 pm). On the other…

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Q: What is the hydroxide ion concentration in a solution that has a pOH of 5.70?

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Q: true or false. There is nothing wrong with the reaction below

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Q: V. OWLV2 | Online teaching and leaX takeCovalentActivity.do?locator3Dassignment-take Update ロ * 。…

A: Anode reaction (oxidation)  Hg(l) -----> Hg2+ +2e-       E°ox = -0.92 v Cathode reaction…

Q: 16. Most nuclear reactions are controlled by substances that are good at catching neutrons. Which…

A: Control rods are used in nuclear decay process to control the neutrons Which can lead to chain…

Q: 7) Use the Maxwell relations to show that the entropy of a perfect gas depends on the volume as Soc…

A: We have to prove that for perfect gas (ideal gas),  S∝ Rln(V)

Q: The rotational constant of NH3 is 298 GHz, show that the value of B̃ is consistent with an N-H bond…

A: NH3 is an oblate symmetric rotor.

Q: General Equation Type of Reaction A +X- AX AX A+ X A+ BX → AX +B -or- Y + BX → BY + X AX + BYAY + BX…

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Q: Procedure A student used a pH meter to collect data for the titration of an unknown concentration of…

A: We have find out the answer by plotting a graph of titration of ethanoic acid with sodium hydroxide.

Q: Using the table of the weak base below, you have chosen Ethylamine as your weak base in the buffer…

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Q: :however, In these examples, the most common secondary structure at the interface of protein-DNA…

A: ✓In these examples the most common secondary structure at the interface of protein-DNA is the alpha…

Q: Given the reaction: 2 Al (s) + 6 HCI (aq) 2 AICI3 (aq) + 3 H2 (g) A strip of aluminum of unknown…

A: All the required calculations have been done in the following step.

Q: There are two benzylic bromides that give (Z)-3,5-dimethyl-2-phenyl-2-hexene on E2 elimination. Draw…

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Q: Calculate the density of CO2 in g / L , at STP. Calculate number of moles of gas that occupies a…

A: here we are required to find the density of carbon dioxide at STP.

Q: но но. 6. он 1. CH,CH,CH3 .S

A: Here we to write IUPAC name of the following compounds.

Q: For the following acid-base neutralization: 2 HNO3 (aq) + Ca(OH)2 (aq) --> 2 H2O (1) + Ca(NO3)2 (aq)…

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Q: (a) Give starting materials (including molar ratios) for synthesis of compound Z. Ph EIO2C OEt F3C…

A: This is an example of Hantz pyridine synthesis.

Q: You have two solutions, one 0.755 M barium nitrate and the other 1.250 M calcium hydroxide. The…

A: Given the molarity of barium nitrate, Ba(NO3)2 = 0.755 M molarity of calcium hydroxide, Ca(OH)2 =…

Q: Write the half-cell equations, cell reaction equation and cell representation for the following…

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Q: ouer which of the. following ismot c strong aciel 2 andwry 2 CD HCI04 Hel O CHCOO4

A: To solve this problem we have to know about strong and weak acid .  Strong acid : The acid which…

Q: A copper(II) sulfate solution of unknown concentration is placed in a colorimeter and an absorbance…

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Q: Explanation on how chemical effects (for example, the conjugation of C=O with C=C double bond) alter…

A: Conjugation decreases the bond length of Bonds and hence there occurs decreases in  Wavenumbers of…

Q: A 53.3 % by mass solution of propylene glycol (C3H3O2) in water is used in cars to prevent…

A: In this question, we will determine the new boiling point of the solution after addition of 53.3% by…

Q: Which of the following two amides will react more readily with a nucleophile? NH Why? 2.

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Q: What is the product of the following reaction? Dr 2 КОН. ethanol Br an alkene an alkene first then…

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Q: Which combination is the best choice to prepare a buffer with a pH of 9.0? HNO2; NANO2 (pk, HNO2 =…

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Q: 19. Which component is not typically found in a nuclear reactor facility? O fusion reaction O…

A: The correct answer is given below

Q: 18. Why is the neutron to proton ratio so important? Scientists made up this concept because they…

A: The correct answer about n/p ratio is given below

Q: n expandable vessel contains 693 ml of gas at 23 °C. What volume will the gas'sample occupy if it is…

A: Given-> V1 = 693 ml T1= 23°C = 23+ 273 = 296K T2= 100°C = 100 +273 = 373 K

Q: Draw the product (Y) of the following reaction. Show how the transition state determines the regio-…

A: This is an example of Diels-Alder reaction

Q: What is the percent of sodium in sodium chloride?

A: Percent can be calculated using mass of sodium ( Na) and total mass of sodium chloride ( NaCl ).

Q: What is the standard cell potential of a cell with an overall cell reaction Pb+ Fe2*Pb2*+Fe? Will it…

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Q: Please fix some of my wrong labeling Experimental IR spectrum of salicylic acid For all IR…

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Q: 3. Calculate the molarity of acetic acid in the diluted vinegar sample using the calculated moles of…

A: The given problem is determination of molarity in acetic acid sample in titration with NaOH

Q: CH2-C= CH

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Q: How could following crossed-aldol reaction be performed to obtain the product selectively? ОН H.…

A: In cross aldol condensation reaction two different aldehyde or ketone are treated with base to form…

Q: Determine the enthalpy of reaction (DHp) in kJ/ mol H2O formed if an acid/base neutralization if 11…

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Q: what is ΔG for a certain reaction of 300 degrees Kelvin if Kp is 6.0 x 10^2

A: Given-> T = 300 K Kp = 6.0 × 102

Q: Given this equation, Sr(OH)2(s)-Sr2* (aq) + 20H (ag), what is the pH of a 2.5 X 10-4 M Sr(OH)2…

A: Given,  The chemical equation,  Sr(OH)2(s) ------> Sr2+(aq) + 2OH-(aq)  Concentration of Sr(OH)2…

Q: Which elements would be found in the alkaline earth metals family? [Select all that apply] O cesium…

A: Alkaline earth metals are six chemical elements in group 2 of the periodic table .These element are…

Q: Give the sign of ΔS in the following reactions: a. NH4SO3 (s) ⟶ N2O (g) + 2H2O (l) b. C3H8 (g) + 5O2…

A: Entropy (S) :-  Entropy is a measure of randomness or disorderness of particles present in the…

Q: Write the half-cell equations, cell reaction equation and cell representation for th following…

A: Given reaction is :  Pb (s) + PbO2 (s) --------> PbSO4 (s)  Write the half-cell equations, cell…

Q: Chemistry write the structure of the major organic compound formed in the boxes OH OH PCC -> CHCL

A: Major product formed in the following reaction = ?

Q: A A Question 12 31. How many covalent bonds do you see in the picture? O 1 O 2 O 3 Question 13 32.…

A: Ionization energy is the energy required to remove the highest-energy electron from a neutral atom.…

Q: what is the chemical equation of alkyl dimethyl benzyl ammonium chloride?

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Q: What mass of oxygen will be produced by heating 400. g of potassium chlorate? KCIO3(s)->KCI(s)+02

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.