? CN

Q: Radioactive decay can be described by the following equation In A = In A, – kt where Ag is the origi...

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Q: 36. Which is the structure ofATP?. A) OH B) %3 OH C) %3. D) 0-CH.

A: ATP => Adenosine tri-phosphate 

Q: The following statements about the chair conformation of D glucopyranose are true EXCEPT * a. The ax...

A: The pyranose structure of glucose is highly stable.  Bulky substituent at Equatorial position give s...

Q: Aqueous sulfuric acid (H,SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodiu...

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per bala...

Q: All the following statements concerning a sample of gas at 1.00 atm pressure are true EXCEPT o the m...

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Q: An interesting binding phenomenon is sometimes found between nitro groups and halogens on aryl rings...

A: A halogen bond is a type of noncovalent interaction that encompasses a wide range of interactions. E...

Q: Arrange the following elements in order of atomic radius (from smallest to largest): Smallest atomic...

A: Solution: N, F, Ne - second-period elements. N, As, Bi - is 15 group of elements.  We know that On m...

Q: Question 35 The pH of a solution is 4.80. What is the concentration of hydroxide ions in this soluti...

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Q: animal furs in a clothing line. The human hair is to be woven into cotton fabrics, to make a hybrid ...

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Q: aU =0 for a perfect gas, show that av =0 for a perfect gas 2.5. Given that T.

A: the equation for the perfect gas is PV=nRT p=pressure V= volume n= mole T=temperature R =gas constan...

Q: structural formula

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Q: (a) State the temperature range over which the followng reactions is spontaneous AS (J/K) ΔΗ (Κυ) NH...

A: We have given that  (a) State the temperature range over which the following reactions is spontaneou...

Q: 16. Ethyl alcohol is diffusing into an alcohol-water solution at 18°C. The concentration of alcohol ...

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Q: M5 Explain the different stages of reaction, reaction mechanisms, conditions of reactions, (for the ...

A: M5)A reaction takes place in different stages for example lets take a second order reaction it proce...

Q: ŞLi +?→Be + dn }C1 + ?→ 1s + 3He Be + He →3 He + ? BBr + }H -→ ? + 2 3n

A: The nuclear reactions given are Li36 + ?→Be47 + n01Cl1735 + ?→S1632 + He24Be49 + He24 →3 He24 + ?Br3...

Q: Solid carbon graphite reacts with oxygen gas to release of 393.7 kJ per mole of carbon dioxide gas p...

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Q: What is the molarity of an HCI solution if 25.5 mL of 0.438 M NaOH is required to neutralize 0.0250 ...

A: Below attached file showing the details answer.  All the best.

Q: Explain why liquid Carbondioxide cannot exist at 1 atm

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Q: 2 C8H18(l) + 25 O2(g) ----> 16 CO2(g) + 18 H2O(g) The above reaction is the reaction between gasoli...

A: Mass of C8H18 = 1 gallon  = 4000 g  Molar mass of C8H18 = 114 g/mol   No.of moles =  mass / molar ma...

Q: True or false  1. the highest energy designated by the star * is called the transition state 2. th...

A: 1. This is true because transition state represents the state of highest energy in forming from reac...

Q: The temporary attractive force possible for inert and noble gases: A. Hydrogen Bond B. Dipole - Dipo...

A: Given the temporary attractive force possible for inert and noble gas

Q: In what type of chemical reaction will you see the arrow (->) pointing to a greater number of produc...

A: Which of the reaction having greater number of product over reactant --

Q: Arrange the following compounds in order of decreasing boiling point (highest to lowest) Highest boi...

A: The boiling point of the organic molecules depends upon the intermolecular forces in the given molec...

Q: Exposure of the compound shown to excess NABH4 and CH3OH provides what product? There is no reaction...

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Q: Question 24 At what temperature does water boil in an area elevated at 3,048 meters above SEA level?...

A: A temperature when water boil in area elevated at 3048 meters above Sea level is given below.

Q: An bond is exchanged for two o bonds in what type of organic chemical reaction? a metathesis reactio...

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Q: What designation best describes linolenic acid, whose structure is shown below? CH;CH;CH-CHCH;CH=CHC...

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Q: This question has multiple parts. Work all the parts to get the most points. The concentration for a...

A: We can't tell exactly anything about this question as I think this is based on the software or appli...

Q: Name each compound with the common name, the IUPAC name, or both. CH, -C-NH, a. :-NH, b.

A: An amide is a carboxylic acid derivative. So, if we remember the nomenclature of carboxylic acid, we...

Q: The increase in the boiling point of a solution is given by the equation: AT = Kmi Where: AT = boili...

A: Given that : The increase in the boiling point of a solution is given by the equation: ∆T = KmiHere,...

Q: A 0.001792 mol sucrose is burned in bomb calorimeter with a heat capacity of 10455 J/°C. A temperatu...

A: Calorimetry is based on first law of thermodynamics which states that energy can neither be created ...

Q: Use the themodynamic data to estimate the boiling point of bromine, Brz.

A: The values of  standard enthalpy change (∆H°) and standard entropy change (∆S°) for Br2(g) are 30.91...

Q: HCN product.

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Q: eTerences) This question has multiple parts. Work all the parts to get the most points. Use the Refe...

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Q: Which compound has a higher boiling point: CH.CH CH,NH2 or CH:(CH2);NH2 A) CH.CH.CHNH, B) CH:(CH:);N...

A: Given which compound has a higher boiling point CH3CH2CH2NH2 or CH3(CH2)7NH2  

Q: 1 Compound X has a molar mass of 416.41 g-moland the following composition: element mass % phosphoru...

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Q: 10) 1.0 gram of CaCO3 was dissolved in HCl and the solution was made up to 1000 ml with distilled wa...

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Q: Calculate the percentage of MnO2 in a mineral specimen if the I2 liberated by a 0.1281-g sample in t...

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Q: Describe the preparation of the following solutions: a) 500 ml of approximately 0.2M NaOH (40g/mol) ...

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Q: Provide a reasonable stepwise mechanism for the following transformation. Show the structure of any ...

A: Solution: We know all kinds are are electron reached due to buy bonds so they can act as nucleophile...

Q: A 25 ml of an HCIO4 solution was titrated with 0.1032 M NaOH solution, 28.06 ml was added in excess,...

A: When the concentration of the hydrogen ion (H+) is increased in an aqueous solution by a substance, ...

Q: Operation / mechanism in a pressure cooker О Воyle's O Charles' O Gay-Lussac's O Avogadro's

A: Gases laws: 

Q: [ Select ] v describes the interactions between different polypeptides and [ Select] describes the i...

A: I think there is no explanation required in this question. 

Q: Draw out the Lewis Structures for OH2 and BeH2 The molecule BeH2 has no lone pairs of es while OH2 d...

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Q: The temporary attractive force possible for inert and noble gases: A. Hydrogen Bond B. Dipole Dipole...

A: Landon dispersion force :  •Even noble gas atoms and nonpolar molecules can experience weak intermol...

Q: What intermolecular force is expected between molecules os pentane (C5H12) and Ar A. Hydrogen Bond B...

A: Pentane and Ar are the non-polar molecule.

Q: 10.0mL of concentrated H3PO4 (aq) is diluted to the final volume of 250 mL. Then 150 mL of the dilut...

A: Given:  Volume of concentrated H3PO4 solution = 10 ml  volume after dilution = 250 ml  Volume of dil...

Q: Discuss in chronological order the different atomic model.

A: An atom is composed of electron, proton and neutron. Arrangement of these subatomic particles are go...

Q: Which of the following is the first step in doing stoichiometric analysis which involve a chemical r...

A:   Stoichiometry:  Equation based calculation  It is a measure of the quantitative of the relationsh...

Q: A reaction between liquid reactants takes place at 33.0 °C in a sealed, evacuated vessel with a meas...

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.