Why is it essential to continually monitor air and water quality?

Q: "NH₂ NH₂ CH₂Br DMF CH₂Br (excess)? DMF ?

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Q: For many purposes we can treat methane (CH) as an ideal gas at temperatures above its boiling point…

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Q: Assign partial charges (8+ or 8-) to each atom indicated by an arrow. If an atom has no partial…

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Q: What is the first p element in the 4th period to which Hund's rule must be applied when writing the…

A: Given that, period 4th element = first block = p block

Q: Circle the molecule in each pair that is more water-soluble. 1 (b) (c) VS. VS. VS. M (e) vs. (f) ï ï…

A: We have to select the more soluble compound

Q: How many localized carbon-carbon single bonds are depicted in the isomer below? H3C CH OH H3C. 2 CH…

A: ANS. 7

Q: II کے III IV V

A: The conformation would be more stable if the bulky group is placed at equitorial position rather…

Q: Describe how forests can be harvested in a sustainable manner.

A: A question based on environmental pollution that is to be accomplished.

Q: A 5.98 gram sample of carbon dioxide gas has a volume of 847 milliliters at a pressure of 2.78 atm.…

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Q: The same amount of electricity (same number of moles of electrons) is used to carry out the…

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Q: scientist conducted a practical of inserting a few blocks of ice into a kettle and turned the kettle…

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Q: In simple distillation the thermometer bulb should be placed only a few millimeters below the side…

A: Distillation is an analytical process to separate two liquids based on the volatility of the liquid.…

Q: Mechanism of separation is partitioning

A: Ans:  HILIC Hydrophilic interaction chromatography (or) hydrophilic interaction liquid…

Q: Directions: Give the oxidation numbers of the underlined atoms in the following molecules and ions.…

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Q: OTS NaOH ? A Ph. J dilute NaOH D OTS ? B NaNH, ? E NaOH ? NaOH

A: The elimination reaction will depend on the stability of the ion formed during the reaction. Higher…

Q: Which one of the following substances should exhibit hydrogen bonding in the liquid state? O PH3 O…

A: Molecule is made up of two or more than two atoms.

Q: The reaction will shift to the right.The reaction will shift to the left.The reaction will not be…

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Q: Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or…

A: ANS. These two compounds are cis-trans isomer to each other.

Q: An aqueous solution of KCI (molar mass 74.5 g/mol) has a concentration of 1.85 m. If this solution…

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Q: H₂SO4

A: We have to draw the major product of the given reaction.

Q: 1) For the following cell at Zn(s) | ZnCl₂(aq) || AgCl (aq) | Ag(s) a) Write the half-reactions; b)…

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Q: For many purposes we can treat methane (CH) a as an ideal gas at temperatures above its boiling…

A: Both the initial temperature and final temperature of methane gas are above its boiling point. So,…

Q: A high altitude weather balloon filled with helium, He, collects data as it rises through the…

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Q: Among the following molecules: I. HOCH2CH2CH3 II. FCH2CH2CH3 III. BrCH2CH2CH2Br IV. BrCH2CH2CH2CH3…

A: There are several types of interaction seen in molecules. Like H- bonding , vanderwaal force of…

Q: The molecule at right is the attractant in catnip. (a) How many hydrogen atoms are present in the…

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Q: H₂(g) + CO₂(g) = CO(g) + H₂O(g) K = 0.137 @ 823 K; Q = 5.3 What is the value of "X" in the ICE table…

A: Given the reaction quotient, Q = 5.3  Equilibrium constant, K = 0.137 at 823 K

Q: 1) Hg(OAc)₂, H₂O 2) NaBH₁

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Q: OSTATES OF MATTER = Calculating mass percent composition A chemist mixes 74.9 g of water with 80.1 g…

A: Given: The mass of water in the solution  = 74.9 g The mass of 2-methylpyrazine in the solution =…

Q: Br A Br B Br C D -Br

A: SN1 reaction The SN1 reaction is a nucleophilic substitution reaction where the rate-determining…

Q: has K, -2.3 x 10⁹. If 0.065 mol NH, is placed in a 1.31 L container, what will the concentrations of…

A: The equilibrium constant of a reaction is the ratio between the product's concentration to the…

Q: Identify two nonrenewable and two renewable resources used to generate electricity.

A: Nonrenewable and renewable both resources are present in the nature, from where electricity has…

Q: What is the major product of the given reaction? 1) CH₂Mgl CH PHO

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Q: Mode of separation that uses a polar stationary phase: IEX HILIC SEC NPLC

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Q: NH4HS(s) NH3(g) + H₂S(g) K = [NH3][H₂S] K = 1.2 x 10-4 What is the concentration of the H2S when the…

A: As Both H2S and NH3 are equimolar and both are gas so both will have same concentration.

Q: 8. Consider 1st order chemical reactions: ABC. The forward and reverse rate constants for both…

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Q: A pellet containing 14.2% by mass NaCl and the rest is KCI is dissolved in a silver nitrate…

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Q: 1.What is the van't Hoff factor for methanol, CH3OH? 2.What is the van't Hoff factor for…

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Q: What is overpotential

A: The  overpotential can be defined as follows

Q: Classify each addition as either syn or anti. Br Br₂ Rxn I CH3 Me HBr Rxn II Et Rxn II anti syn anti…

A: If the species add on same side then it is called as syn addition.  If the species add on opposite…

Q: Concept Check 9.3 Is it possible to have a copper-nickel alloy that, at equilibrium, consists of an…

A: The explanation is given below-

Q: Explain why dead zones are often located along heavily inhabited coastlines.

A: Dead zone Less oxygen or hypoxic, areas in the world's oceans and lakes are called dead zones. All…

Q: 4) Intramolecular Claisen condensation is called a) Cannizaro b) Dickmann c) Mannich 5) propanoic…

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Q: SO₂(g) + NO₂(g) = SO3(g) + NO(g) 1.0 M 2.0 M 3.0 M 4.0 M The initial concentrations are given below…

A: Dear student , Since you have posted multiple parts questions we are allowed to solve only first…

Q: 25.0 mL of a 0.200 M solution of Ba(NO3)2 is mixed with 15.0 mL of a 0.300M solution of Na2SO4. The…

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Q: A nitrate solution containing an unknown cation is added to each of the following three test tubes.…

A: The identification of cation and anions in a mixture is determined by the different types of…

Q: Ionic interaction can be a mechanism of separation in SEC O HILIC NPLC O IEX

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Q: Heroin, a tertiary amine, is a weak base because it contains a nitrogen atom with a lone pair of…

A: Mass of the sample mixture taken for titration = 75.000 mg  Molar mass of Heroin = 369.4176 g/mol

Q: 6. Upon operation of the hollow cathode lamp at high current the intensity of the produced beam…

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Q: The alkyl group (CH3)2CH- is a(n). group. (a) tert-butyl (b) iso-butyl (c) n-butyl (d) sec-butyl (e)…

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Q: Question 41 of 48 What is the relationship between the two molecules shown below? A) They are…

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