Which one of the following is a PURE chemical substance Sea water O Selenium O Air O Paper

Q: A catalyst increases the rate of reaction by providing an alternative reaction pathway with a higher…

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Q: Ammonium perchlorate (NH₂C1O₂) is a powerful solid rocket fuel, used in the Space Shuttle boosters.…

A: Here we are required to find the Moles of ammonium perchlorate needed

Q: A 9.055 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: Using the ΔH°rxn equation and standard enthalpies of formation, calculate the enthalpy change of the…

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Q: The rate constant for the second-order reaction 2NOBr(g) → 2NO(g) + Br2(g) is 0.80 M-¹s¹ at 10 °C.…

A: Detail mathematical calculation is shown below

Q: Gaseous ammonia chemically reacts with oxygen (O₂) gas to produce nitrogen monoxide gas and water…

A: Ammonia chemically reacts with oxygen (O2) gas to produce nitrogen monoxide gas and water vapour.…

Q: Select the answer in which the amines are correctly listed in order of increasing basicity. (Least…

A: Please find your solution below : Amines are the class of organic compounds that contain nitrogen…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The given chemical equation is  Ca3(PO4)2 (s) + SiO2(s)+C(s) →CaSiO3(s) + P4(s) + CO(g)

Q: Name and circle 4 functional groups in Hyperforin

A: Functional groups are encircled:

Q: 13. The molar conductivity of 0.0300 M HF(aq) is 4.10 mS m² mol. Determine the acidity constant, Ka,…

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Q: Which of the following is true about the following reaction when the temperature is raised? N₂O4(g)…

A: Given-> N2O4(g) <------> 2NO2(g)   ∆H = 57.0 KJ

Q: sider the redox equation. H₂O 2 The atom that lost electron/s is I [Select] N using the CON m H vil…

A: If oxidation number increases then loss of electrons.    1. Atom that lost electrons = I 2. Atom…

Q: Question 14 Consider the voltaic cell: 2+ Sr(s)|Sr²+ (1.0 M)||H† (1.0 M)|H₂ (1 atm)|Pt(s) Which of…

A: In electrochemistry, the Nernst equation is used to calculate the cell potential of an…

Q: 1. Predict the products or the reaction of (i) phenylacetaldehyde and (ii) acetophenone with the…

A: Organic reactions are those in which organic reactant react to form organic products.

Q: insulated container A sample of polystyrene, which has a specific heat capacity of 1.880 J-g ¹.C¹,…

A: Heat lost by polystyrene will be equal to heat gained by water.   Equation for heat energy ( q ) is,…

Q: 5. Fe(s) Fe²+ (aq) + H₂ + 2H (aq) Oxidation Reaction: Reduction Reaction: Reducing Agent: Oxidizing…

A: Given reaction: Fe(s) + 2H+(aq) → Fe2+(aq) + H2 We have to find the oxidation reaction, reduction…

Q: Identify the correct oxidation states for each of the three labelled carbon atoms in the structure…

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Q: Resonance structures indicate that more than one isotopic form of an element exists in the molecule.…

A: Resonance structure : Resonance structure is way of depicting the bonding in poly atomic atom by the…

Q: Consider the reaction A + B products with the following rate law: rate = K[A]²[B] Which of the…

A: Check the rate law carefully and check whether both statements are true or not.

Q: Nitrogen dioxide (NO₂) gas and liquid water (H₂O) react to form aqueous nitric acid (HNO3) and…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 192.0 g sample…

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Q: Consider a voltaic cell at 25°C consisting of a Co(s) electrode immersed in a 1.0 M Co(NO3)2…

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Q: Cyclooctatetraene undergoes photochemical reactions in the presence of heat and light. A) How many…

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Q: Why is the solution containing the metal ion buffered before titrating with EDTA?

A: Ethylenediaminetetraacetic acid or EDTA is a polyamino carboxylic acid. It can form 1 : 1…

Q: Acetylene (C₂H₂) gas and oxygen (O₂) gas react to form carbon dioxide (CO₂) gas and water (H₂O)…

A: Given,  Number of moles OF C2H2 = 7.0 mole Moles of O2 = 3.0 mole  Moles of C2H2 left = ?

Q: 16. Calculate the root-mean squared velocity (vrms: 3RT. = of Neon and M Argon at 310K. Now,…

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Q: The half-life of a second-order reaction, with respect to only one reactant, is independent of the…

A: The time taken to consume the half concentration of the reactant in the reaction is known as half…

Q: The 1,6-diester shown undergoes a Dieckmann reaction to produce A) a new 5-membered ring. B) a new…

A: Organic compounds are the compounds that are made up of carbon.and hydrogen atoms.

Q: Consider a voltaic cell at 25°C consisting of a Fe(s) electrode immersed in a 1.0 M Fe(NO3)3 soluti…

A: The answer to the following question is-

Q: Create diagram with ALL the functional group(s) found in DEET (Diethyltoluamide) circled and named.

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Q: Provide the molecular formula for all the skeletal drawings shown below:   1.  C₅H₁₀O₃ 2.  C₅H₁₂O₃…

A: I have given the detailed solution to the questions below:

Q: Ammonium perchlorate (NH₂C1O₂) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: 6.6 g of ammonium perchlorate NH4ClO4 undergoes decomposition reaction to produce nitrogen gas…

Q: du.co Maps OH Question 15 of 48 Identify the circled functional group. A) ether B) alcohol C) amine…

A: Organic compounds are the compounds that contain carbon and hydrogen atoms in a compound.

Q: 13. The molar conductivity of 0.0300 M HF (aq) is 4.10 mS m² mol. Determine the acidity constant,…

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Q: Chemistry Find the molarity of NaOH, net volume, and average molarity using the data given:…

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Q: Which of the following reactions will occur spontaneously? A. Au + K+ —> Au+ + K B. Al3 + Fe —> Al…

A: From electrochemical series,  In Spontaneous redox reaction  Element having higher reduction…

Q: 2. Calculate the emf of the cell: Pt | Hag) | HCl(aq)| AgCl(s) | Ag a) -0.44 V b) 0.44 V c) -0.22 V…

A: 2. Recall the given cell notation :                              Pt| H2 g | HCl aq | AgCl s | AgWe…

Q: Gaseous methane (CH4) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

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Q: What is the oxidation number of sulfur in Na2S2O3? O +2 O +6 O +12 O +4 O +3

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Q: A 9.055 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

A: Here we are required to find the molecular formula of the hydrocarbon.

Q: Draw the Lewis-dot structure for SeHCI.

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Q: The rate constant for the second-order reaction 2NOBr(g) → 2NO(g) + Br2(g) is 0.80 M-¹s1 at 10 °C.…

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Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

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Q: Select the carbonyl that has the most acidic proton on an a-carbon. A) I Н. H B) II H C CH3 C) III…

A: Among the options, we are given a ketone(I), an aldehyde(II), an acetylacetone (III) and…

Q: HIU 3=0 O H-C10-C-R H-C-0-C-R O II H-C-0-C-R H 9=0

A: Here I want to know about the question completely. I am not knowing that what to do with this…

Q: What is the oxidation number of arsenic in K3AsO4? O +6 O +3 O +5 O +8

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Q: QUESTION 3 150 cm³ of a 0,500 mol dm-3 HCI and 150 cm³ of 0,500 mol dm³ NaOH were mixed. The…

A: Both HCl and HA are monoprotic acids. NaOH is a monoacidic base.  Required conversion factors: 1 cm3…

Q: Hydrogen produced from a hydrolysis reaction was collected over water. The data is compiled in the…

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Q: Moclobemide generates the following metabolite. Which enzymes respectively can have function in the…

A: We have to tell the name of the enzymes which genarate the given Moclobemide metabolism. The given…

Q: SO₂(g) + Cl₂(g) = SO₂Cl₂(g) ΔΗ° = −264 kJ K = 34.5 When the reaction is altered, as below, what is…

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