A. When 0.5g of iron filing was placed in a container with 2.0g of sulfur powder, this is called a mixture. A chemical change will be observed. B. A chemical change is observed if there is a new product formed. - Statement A is correct and statement B is incorrect. - Statement A is incorrect and statement B is correct. - Both statements are correct. - Both statements are incorrect.

Q: What effect does each of the following changes have on the equilibrium of the reaction: (left or…

A: Lechatliers principle :  It is applicable for both physical and chemical equilibrium It is a…

Q: Consider the following elementary steps: (1) A (2) B+C (3) E+ A B slow Which species is/are the…

A: A chemical reaction can be added or subtracted like an algebraic equation. The given reaction…

Q: Draw structural formulas for all of the enol forms of the carbonyl compound below.

A: Keto enol tautomerism is a type of structural isomerism. A chemical equilibrium between the keto and…

Q: Sketch the following coordination complexes from their name. Be sure to use the correct geometry and…

A: We need to write the molecular formula of given coordination complexes from their IUPAC name. a)…

Q: Which of the following is a terminal alkyne? CH₂ CH₂-C-C=CH I CH3 IRE H₂CH₂CC CCH₂CH3 ERI CH₂…

A: To solve this problem we have to identify the terminal alkyne and write the correct hydrogenation…

Q: Briefly explain why an analytical treatment is required when calculating the pH of solutions of weak…

A: For weak acids or weak bases, we need to consider the ionization of water and we should also…

Q: A 1 liter solution contains 0.377 M hypochlorous acid and 0.503 M potassium hypochlorite. Addition…

A: Firat we need to check the buffer capacity of given buffer solution using the pKa of acid.  Then we…

Q: The pressure of a sample of argon gas was increased from 1.57 atm to 6.41 atm at constant…

A:

Q: What are the species type of I and II (nucleophile or electrophile)?

A: Nucleophile : A nucleophile is a chemical Species that forms bonds by donating an electron pair .…

Q: 14. 15. 16. 17. 18. 19. 20 21. 1. 2. 3. 4. Br 사 Br + + OH Br + Br Br + peroxyacid HBr NaOEt EtOH…

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Q: Consider the following reaction: [Cr(H2O)5(SCN)]2+  +  Yn-  -->  [Cr(H2O)5Y](3-n)+  +  SCN- Which…

A: Given Reaction: [Cr(H2O)5(SCN)]2+  +  Yn-  -->  [Cr(H2O)5Y](3-n)+  +  SCN- To determine the…

Q: Which of the following statements is/are TRUE? 1. A pair of enantiomers divert the plane polarized…

A: Asymmetric center is a carbon center which contain four different group attached to it. An…

Q: An antifreeze solution is made by mixing ethylene glycol (p = 1116 kg/m³) with water. Suppose the…

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Q: 3. Using the following reactions answer the questions below. ملة OCH3 Molecular Weight: 170.21 g/mol…

A: The mechanism of given reaction can be given as:  This reaction is an example of protection of…

Q: Which of the following solution would be the strongest acid?  Group of answer choices A solution…

A: Ka is acid dissociation constant

Q: H₂CH₂C Н H CH СЊС GHI Н Н ABC CH₂CH₂CH3 CH,CH,CH,CH3 H CH2C JKL H CH2CH2C_ CH₂ CH₂CH₂CH3 Н DEF…

A: If the two same substituents of the alkene are on same side, then it is termed as cis alkene, and if…

Q: Curved arrows are used to illustrate the flow of electrons. Follow the arrows to predict the product…

A: Reaction mechanism for the given reaction.

Q: Which of the following describes surface tension in water? Choose 1 answer: A Surface tension occurs…

A: The tendency of a liquid to shrink into the minimum surface area possible is known as surface…

Q: A q req Use the References to access important values if needed for this question. The value of Kai…

A: An acid is a substance which can give hydrogen ions. Monoprotic acid give hydrogen ion/proton in…

Q: A food chemist determines the concentration of acetic acid in a sample of apple cider vinegar by…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. HO DMP (Dess-Martin…

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Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting structure,…

A: Mechanism of the given organic reaction

Q: Why is water so effective at hydrogen bonding? Choose 1 answer: B D There are two hydrogens,…

A: Electronegativity of oxygen atom is greater than hydrogen atom.  Hence oxygen atom attract electrons…

Q: 27. Provide a detailed, step by step mechanism for the reaction shown below. HO Br₂ Br + HBr

A: In given reaction cyclic compound is formed .  Alkene with Br2 undergoes bromination reaction. But…

Q: Aa.89. some molecules can cross the plasma membrane directly by simple diffusion, however inorganic…

A: diffusion is the process in which molcules move from high concentration to low concentration through…

Q: Calcium chloride is a compound frequently found in first-aid packs. It gives off heat when dissolved…

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Q: What is the maximum mass of S8 that can be produced by combining 81.0 g of each reactant?   8SO2…

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Q: Consider the following thermochemical equation: 4 Al(s) + 3 O₂(g) → 2 Al2O3(s) AH = -1676 kJ How…

A: From balanced reaction 4 mole of aluminium react with oxygen and produced two mole Al2O3

Q: ||| O SUBSTITUTION REACTIONS Predicting the correct substitution products for the reaction... Draw…

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Q: HBr ROOR

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Q: Which of the following is most likely to represent the formula of a hydrocarbon found in gasoline?…

A: Gasoline is a mixture of volatile,  flammable liquid hydrocarbons derived from petroleum and used as…

Q: 4. You have two samples of KI. You measured the amount of K and I in one sample. You were only able…

A: #4:(a): Actually we have to find how much of K was in the second sample, not Cl. In order to find K…

Q: When 18.0 mL of a 5.40×10-5 M ammonium carbonate solution is combined with 25.0 mL of a 6.12×10-4 M…

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Q: 3. Given the following redox reaction: Fe²+ (aq) + 2 Fe²+ (aq) → Fe (s) + 2 Fe³+ (aq) Fe²+ (aq) +…

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Q: Calculate the value of AH (in kJ) for the reaction, 2AR3 (g) + Q (s) → A2R4 (g) + QR2 (s) given the…

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Q: 22. Some vinegar is just too strong to use in salad dressing. To ½ cup of vinegar containing 7.0%…

A:

Q: Which of the following best describes the difference between a cation and an anion Choose 1 answer:…

A: Cation and anion are both ions.  Both have opposite electrical charge.   Due to have opposite charge…

Q: malo H3C H3C CH3 CH3 rrow-pushing Instru Br2, H3O+ H3C CH₂Br H3C CH3 Aldehydes and ketones can be…

A: Given : structure of reactant and product.

Q: Give the electron configuration 1s22s22p1,  How many energy levels are occupied by electrons? What…

A: The electron configuration is 1s22s22p1 3 energy levels are occupies by electrons i.e. 1s,2s,2p…

Q: Smelting of ores to produce pure metals is an atmospheric source of sulfur dioxide.  Balanced…

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Q: Draw the major organic product of this E1 elimination reaction. Ignore byproducts. H3O+ heat OH…

A: E1 mechanism:  Proceed through carbocation intermediate. Firstly there is a formation of carbocation…

Q: 7.000 g sample of solid potassium chlorate is decomposed in the presence of the catalyst MnO2 to…

A: Mass of KClO3 = 7 g Temperature = 19°C = 292 K Volume = 5 L Pressure inside tank = ?

Q: Draw the thiol needed to produce the sulfide under the conditions shown.

A: Given : structure of product.  Tip : SN2 reaction is occurring

Q: 8) What is the product of the reactions below? CH3CH₂CH-CH₂ CH3CO3H A) CH3CH₂CHCH₂OCH3 ОН B)…

A:

Q: rovide the polymer showing 5 repeating units for the following alkene: CH2CH=CH2CH3

A: Given -> Monomer is CH3CH=CHCH3 When monomers are repeated polymer is formed .

Q: Choose the structure that fits the description from the pool of choices below (note: Et stands for…

A: Greater the number of 1,3-diaxial interaction less the stability

Q: Write the balanced NET ionic equation for the reaction when Al(NO₃)₃ and Na₃PO₄ are mixed in aqueous…

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Q: Draw the starting structure that would lead to the following product under these H conditions.…

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Q: Between the two reactants in the given reaction, I is (nucleophile or electrophile) and II is or…

A: Here we are required to identify the nucleophile and electrophile.

Q: A gaseous mixture contains 424.0 Torr H₂(g), 330.3 Torr N₂(g), and 74.1 Torr Ar(g). Calculate the…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".