Which description of a polymer's properties is consistent with viscoelasticity? Viscous at low temperatures, rubbery at intermediate temperatures, glassy at high temperature Rubbery at low temperature, glassy at intermediate temperature, viscous at high temperature Glassy at low temperature, rubbery at intermediate temperature, viscous at high temperature Viscous at low temperature, glassy at intermediate temperature, rubbery at high temperature

Q: Compound X has a molar mass of 176.12 g mol and the following composition: element mass % carbon…

A: Answer:Molecular formula of the compound expresses the number of moles of atoms of each type that…

Q: 4. Write IUPAC names for the two compounds below. Br Br go

A: Prediction of the IUPAC names :-Rules for IUPAC naming :-Select the longest chain which contains…

Q: The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in…

A:

Q: The dissociation of molecular iodine into iodine atoms is represented as 1₂(g) = 21 (g) At 1000.0 K,…

A: The initial moles of  = 0.0457 molVolume of the container = 2.32 LThe equilibrium constant for the…

Q: Heat of Formation Use a standard enthalpies of formation table to determine the change in enthalpy…

A: The change in standard enthalpy of the reaction is given bynp = represents the stoichiometric…

Q: 5 What is the pH of a 80.0 mL solution which is 0.27 M in IO and 0.41 M in HIO? The Ka for HIO is…

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Q: The monosaccharides shown below are H HO-H H HO- HO OH -H H CH,OH H- НО-Н H H- Anomers H -OH Epimers…

A: The molecules with the same molecular formula but different structures are known as isomers. If the…

Q: How would you prepare 1.10 of a 0.40-M solution of each of the following? a.H₂SO4 from…

A: Several terms are required to express the concentration of the solution.Molarity is one of the terms…

Q: Predict the product of the reaction below. Which type of carbonyl(s) are featured in the reactant? H…

A: NaBH4 is a weak reducing agent, it can only reduce aldehyde and ketone to alcohol.

Q: What is the relationship of the following two structures? ОН HO ОН O Diastereomers O Enantiomers HO…

A: Diastereomers are isomers that are not mirror images of eachother. They have same configuration at…

Q: the compounds tested against EGFR . b) Are there quinoline-based compounds described as EGFR…

A: The question above is related to the use of quinoline-based compounds as inhibitors of EGFR…

Q: Only typed explanation otherwise leave it

A: Basicity is defined as the electron donation ability of a molecule. If it is able to donate…

Q: Arrange the following molecules in order of increasing boiling point: a. HO 41- H b. H3C H₂ C.…

A: Higher the boiling point of a liquid or melting point of a solid, the particles will be more…

Q: Mechanism. Provide the complete mechanism for the reaction below. You must include appropriate…

A: Given is organic reaction. Given reaction is reduction reaction. NaBH4 is reducing agent and…

Q: The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial…

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Q: - 10 The acid dissociation constant K of hydrocyanic acid (HCN) is 6.2 × 10¯ Calculate the pH of a…

A: Ka for HCN = 6.2 × 10-10Concentration of HCN solution (C) = 3.8 M pH of the solution = ?

Q: Select the expected major product(s) of the following reaction. 01 OI and II OI and III Oll O III Br…

A: Given,The reaction:

Q: Predict all the reaction product(s) and draw the mechanism for each transformation below. Ph Br₂ H₂O

A: Given is organic reaction. Given reaction is halohydrin formation reaction.

Q: Which of the following carbonyl groups exhibits an absorption band at the highest wavenumber? I. II.…

A: Given are organic compounds.All are ketone derivatives.

Q: When 1.0 mol N204(g) is formed from 2.0 mol NO2(g) under constant pressure (1 atm) at 298 K, please…

A: 1.0 mol N204(g) is formed from 2.0 mol NO2(g) Temperature = T = 298 K ΔHf°(NO2,g) = +33.85 kJ/mol…

Q: 2 Identify the least stable carbocation. A) I B) II C) III D) IV

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Q: For the dehydrohalogenation (E2) reaction shown, draw the Zaitsev product, showing the…

A: E2 elimination reaction is one-step and concerted, both bond cleavage and formation taking place at…

Q: See Figure 8-2. Both Compounds A and B are achiral. When they react in the presence of a base and…

A: This is aldol addition reaction, a type of nucleophilic addition reaction.In first step, proton…

Q: Which of the following solutions will have the highest pH, assuming complete dissociation? Remember:…

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Q: Provide a plausible synthesis for the compound on the left from the compound on the right. HO COOH…

A: The given synthesis scheme is shown below.We have to carry out the above synthesis.

Q: Complete the following acid-base reaction by drawing the major organic product(s). H₂CHC=CHCH₂COONa*…

A: Weak acids and bases are more stable than strong acids and bases. Hence in an acid-base reaction,…

Q: Name the alkenes below. Use ONLY E/Z designators to indicate stereochemistry. CH=CH₂ H3C H3C CH3

A: Given that, the structure of the alkene is:

Q: Starting with the following equation, Pb(NO₂)₂(aq) + K PO (aq) → Pb (PO)₂(s) + KNO₂(aq) calculate…

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Q: Draw the conjugate base for the following acid. Remember to include charges and non-bonding…

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Q: A student runs two experiments with a constant-volume "bomb calorimeter containing 1000. g or water…

A: The objective of the question is toIdentify the reaction as exothermic or endothermic.Calculate the…

Q: In each row check off the boxes that apply to the highlighted reactant. reaction Ni(s) + 4 CO (g) →…

A:

Q: 20. What is the major product of the SN1 substitution of tert butyl chloride in ethanol?

A: Alkyl halides give a solvolysis reaction with ethanol to form an ether.

Q: 1. Predict the major final product(s) for ANY FIVE of the following six problems. Assume one…

A: We have given two reactiona) In left side andb) In right sideThe reagents and starting material of…

Q: 1. Which of the following molecules should have the longest max based on the idea it has the most…

A: In the UV-visible spectroscopy, the molecule shows transition between the electronic energy levels.…

Q: 39 Di-, Tri-, Tetra-). Determine the degree of substitution for each alkene. (Monosubstituted, ind

A: Given,The alkenes are:

Q: What mass of a 30% (w/w) hydrogen peroxide solution is required to provide the mass 3.0618 for a…

A: In the realm of chemistry and pharmaceutical preparations, accurate measurements and calculations…

Q: Calculate the mass in grams of hydrogen chloride produced when 8.5 L of molecular hydrogen measured…

A: The volume of hydrogen gas = 8.5 LThe temperature of hydrogen gas = The pressure of hydrogen gas =…

Q: A gas sample containing 1.20 moles at 28°C exerts a pressure of 350. torr. Some gas is added to the…

A: Information of question

Q: 3. Show the full mechanism (all intermediates included!) for addition of the electrophile to…

A: Given reaction is Aromatic electrophilic substitution reaction. Given compound is pyrazole.

Q: Which contains the greatest number of moles of oxygen atoms? 0.1 mol H₂O 0.05 mol C6H4(NO₂)2 00.05…

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Q: A chemical reaction takes place inside. flask submerged in a water bath. The water bath contains…

A: Given,mass of water = 7.00 kgheat flow from reaction to water bath = 97.4 kJInitial temperature of…

Q: 2CO2(g) 2CO(g) + O2(g) If the initial concentration is [CO2]i = 0.010 M and the equilibrium constant…

A:

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The given balanced chemical equation is   2CH3OH(l) +3O2(g) 2CO2(g) + 4H2O(l)The standard enthalpy…

Q: Calculate the energy required to heat 1.00 kg of water from 36.0 °C to 51.5 °C. Assume the specific…

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Q: Q2. Calculate the pH of a 6.73 x 10 M H3PO4 (phosphoric acid) solution. pH = -log[H*] Molar mass…

A: The question is based on the concept of pH of the solution.  It is defined as a negative logarithm…

Q: (14) The major product of the following reaction is: Pd/c 10000 b) H d) choco

A: H2, Pd/C is used for the hydrogenation of alkenes. Hydrogenation of substituted cyclic alkenes give…

Q: You will find it useful to keep in mind that HCH₂CO₂ is a weak acid. 1.1 mol of KOH is added to 1.0…

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Q: Provide the complete mechanism that shows the formation of the products in the reaction below.…

A: The question is based on organic reactions. We need to identify the product and explain its…

Q: Complete the following table by either selecting the appropriate choice for items [1] - [6] from the…

A: Arrhenius theory is one of the theory to explain the compound as an acid or a base.According to the…

Q: Identify the formal charge on the oxygen atom in the following structure: H H :O H || | | H-C-C-C-H…

A: The formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in…