Which is true about active transport? It requires energy It moves substances down the concentration gradient Oit does not require energy it moves material from high to low concentration

Q: Draw the skeletal structure of the following organic molecules. (i) 4-chloropentanal (ii)…

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Q: The pH of an acidic solution is 5.67. What is [OH⁻]?

A: Given that pH of an acidic solution = 5.67 [OH-]  = ?

Q: Write a balanced chemical equation to show the ionization reaction that occurs when acetic acid is…

A: Acetic acid is a weak acid with the chemical formula CH3COOH.

Q: STARTING AMOUNT Question 24 of 24 A solution of phosphoric acid (HPO4) with a known concentration of…

A: The volume of NaOH required can be calculated as follows

Q: 2. A water tank contains 7.50 x 10³g water. Will the addition of 1.20 x 10³g ethylene glycol(C₂H6O₂)…

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Q: DESTINE A student weighs out a 5.95 g sample of (NH4),PO4, transfers it to a 300. mL volumetric…

A: Given that -  Mass of ammonium phosphate Solute = 5.95 g  Volume of total Solution = 300 mL    Then…

Q: The adjective “weak” in “weak acid” means: The acid is 100% ionized but very dilute. The acid is…

A: Acid is substance which release hydrogen ions band base is substance which release hydroxyl ions…

Q: 22. A solution of sodium sulfide reacts with 200. mL of 3.75 M HCl to form a solution of sodium…

A: Given, Concentration of HCl solution = 3.75 M = 3.75 mol/L Volume of HCl solution = 200. mL = 0.2 L…

Q: Describes how the Covid-19 virus can spread rapidly in an aircraft cabin using appropriate gas laws.

A: The COVID-19 pandemic is one of the most significant worldwide health and financial crises in modern…

Q: So, in this lewis acid-base reaction, do we need to draw lone pairs or not? Why or why not? Thank…

A: In the given lewis acid base reaction :  Is it necessary to represents the lone pair of electrons ?

Q: Is this correct? Why?

A: Fluorine is the most electronegative element in the whole periodic table, and oxygen is less…

Q: For a certain reaction, a plot of ln [A] vs. time gives a straight line with a slope of -1.46 s -1…

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Q: A + B → products Initial concentration (mol/L) Initial rate Experiment A B (mol L-¹ min¹¹) 1 1.50…

A: Rate of reaction is change in concentration with respect to time.  aA + bB →cC  For above reaction…

Q: Question 21 Which of the following actions would be involved in elec- troplating with gold? Select…

A: When gold metal is used for electroplating process, then a Solution of gold containing compound like…

Q: Select the one with the highest boiling point. Select the one with the lowest freezing point. A. 1.0…

A: Elevation of boiling point (∆Tb) is directly proportional to molality of solution ∆Tb = i × Kb × m…

Q: Illustrate the basic parts of the following: a. AAS b. FAES c. HGAAS d. ICP-MS e. Florescence Atomic…

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Q: ants/434511/take/14/ Question 17 Which half-reaction can occur at the anode in a voltaic cell? A…

A: Voltaic cell is a type of electrochemical cell where chemical energy is converted to electrical…

Q: Classify the substance as a weak acid, weak base, strong acid, or strong base 1. 2. Based on your…

A: Sodium Oxalate Na2C2O4 is a salt.

Q: 25.00 mL of 0.041 32 M Hg2(NO3)2 were titrated with 0.057 89 M KIO3. Hg++ 2103 →→ Hg₂(103)2(s)…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

Q: For the reaction H2(g) + 1/2 O2(g) → H2O(g)         ΔrH° = -241.8 kJ/mol,   what mass of H2(g) is…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: HO name of this compound? ethoxyphenol ОС

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Q: Select the correct statement regarding the process in which HNO₂ is converted to HNO3: a) H is…

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Q: What is the pH of a 0.00205 M solution of NaOH?

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Q: What will be the cell voltage of the reaction if all species are 1 M in concentration: Pb(s) + 2H+…

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Q: SA. For chains, draw Newman projections of all conformation= determine their energy OCSL 6.1 6.14…

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Q: A.5 Draw all Newman projections for a 360° rotation around the Indicated bond of the molecules below…

A: Propane :-  CH3-CH2- CH3

Q: Enumerate the classes of organic derivatives of water that are soluble in concentrated H2SO4…

A: Solutions-  The classes of organic derivatives of water is all alcohols.

Q: Date: Part B Data - Quantitative Analysis of Precipitation Reactions and Limiting Reactant Problem…

A: # Data Analysis: #1: Mass of Ba3(PO4)2(s) precipitated = 1.5563 g

Q: Professional photographers most commonly use digital photography now. However, some photographers…

A: It is given that the developing solution is a basic solution. Bases have pH greater than 7.

Q: 10.1 Palladium-107 (Z = 46) undergoes beta (B) decay (t1/2 = 6.5 x 105 yr). Write the balanced…

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Q: Please create a concept map about macromolecules.

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Q: Current Attempt in Progress Rank the following groups in terms of their priority according to the…

A: According to Cahn-Ingold-Prelog system of priority, a substituent that has higher atomic number will…

Q: Write the rate expression in terms of A[reactant]/At and A[product]/At for the reaction: N₂ + 3H2 →…

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Q: Acetic acid dissolves in water as a weak acid. Calculate the mole fraction of acetic acid in the…

A: Mole fraction is the ratio of number of moles of specific compound in solution to the total moles in…

Q: A photon of energy 2.5×10–18 J has a wavelength of about

A: Given, Energy of a Photon (E) = 2.5 × 10-18 J  Wavelength (λ) = ? Note:  Planck constant (h) = 6.626…

Q: Which among the representative compounds is/are soluble in NaOH?  Write the acid-base reaction…

A: NaOH is a strong base, but weaker than extremely strong bases like NaNH2.

Q: The structure is benzaldehyde, I need the IR ignals labeled for at least 4 peaks please. 50 2000…

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Q: 1. A student constructed a voltaic cell using nickel and lead as electrodes. He also used 0.25 M…

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Q: Draw the structure for each of the following on a paper then upload your answe a) Ethynecyclopropane…

A: Note - Dear student, since the given question is a multipart question, hence I solved first three…

Q: Our atmosphere is made up of 78% N2, 21% O2, and 1% other gases. What is the partial pressure of N2…

A: We use the formula below to find the partial pressure of a gas in a gas mixture.  Partial pressure…

Q: draw a bohr-rutherford diagram to show the bonding that takes place between hydrogen and oxygen…

A: Given in following question a molecule H2O draw the  Bohr -Rutherford diagram between bond hydrogen…

Q: Sodium chloride is added to water (at 25 °C) until it is saturated. Calculate the concentration of…

A: The balanced equation for the dissociation of NaCl(s) in water is: NaCl(s) ⇌ Na+(aq) + Cl-(aq) ; Ksp…

Q: Draw the Lewis structures for each of the following reactions and the final compound represented in…

A: When a metal bonds with a non metal, they forms an ionic compound which result due to the transfer…

Q: TASK 2: BALANCING! Balance the following redox reactions by the oxidation number method and…

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Q: A student is surprised by her work. She feels that the nuclear binding energy is high for oxygen-16.…

A: Here we have to find the incorrect step of calculation in the following Einstein mass- energy…

Q: Directions: Enlist uses of polymers. Write your answer on a separate sheet of paper. 1. 2. 3. 34567…

A: Any substance made up of large marcromolecules which are the repetitive arrangement of similar…

Q: Activity type of Alumina (meaning of type I, II, III, etc.) what do the numbers mean?

A: Alumina is a granular and extremely porous form of aluminum oxide. It is available in basic, acidic…

Q: The pH of an acidic solution is 5.05. What is [OH^-]

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Q: Select the correct statement regarding the process in which HNO₂ is converted to HNO3: a) H is…

A: Which one of the following is correct

Q: Give good hand written explanation Asap What volume of concentrated hydrochloric acid solution…

A: Given that -  Number of moles of hydrochloric acid solute = 2.1 mol  We know that most Concentrated…

Vitamins and Coenzymes

A class of organic compounds needed in the human body for normal activities is known as vitamins. They are characterized into two parts depending upon their solubility in water. They can act as coenzymes, cofactors, or prosthetic groups for enzymes.