Calculate the stoichiometric ratio of Fe3O4 in Fe2O3.

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Q: Isotopes means; same element can have different masses. O False O True

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Q: How does a buffer reduce severe changes to p

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Q: Q3/ Prepare each of the following compounds by using any inorganic reagents necessary: 1)…

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Q: Some PCI5 is allowed to dissociate into PCI3 and Cl₂ at 523 K. At equilibrium, [PCI5] = 0.171 M, and…

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Q: Acetic acid, C₂H4O2(aq), is the weak monoprotic acid found in vinegar. It has a Ka value of 1.75 x…

A: given data  concentration of acetic acid = 0.84 mol/L Ka = 1.75×10-5 find conc of H3O+

Q: IR Spectum Now 4000 3000 40 13C NMR Spectrum (500 M, COCI, soon) 80 2000 DEPT Ci ct cHt proton…

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Q: 5. Name the following compounds CH3 iii. iv. H₂N CH3 CH3 CH3 CH3

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Q: 6. What forces compounds to take on specific shapes based on the number of atoms and lone pair…

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Q: 5. Which of the following is a conjugate acid-base pair? H₂PO4 and HPO4² HCO3 and CO² NaOH and OH…

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Q: 4. One day while working the in lab, I decide to warm a cup of water to make some tea. I place the…

A: Given :-  C(s) + 2H2 (g) → CH4(g) , ∆H1 = -74.87 (kJ/mol) ... (1)  C(s) + O2 (g) → CO2(g) , ∆H2 =…

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A: Given :  Temperature = 70°C  Pressure = 10 atm  Vapour pressure of water at 70°C = 0.3117 bar…

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A: 5730 Given, half-life of C-14 = years. 65.1% of C-14 found in living trees of the same type had…

Q: [b] The emf of a cell made of Zn (anode) and H₂ electrode (cathode) immersed in 0.424M ZnCl₂ is…

A: pH can be determined using Nernst equation for the given galvanic cell.

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Q: Specify whether the calculated mass percent of water would be too high, too low, or unchanged as a…

A: #1: A hydrated salt contains both the unhydrated salt and water.  When we supply sufficient heat,…

Q: C2H5Cl products Experiment shows that the decomposition is first order. The following data show…

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Q: Ammonium perchlorate (NH4CIO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts…

A: Recall the dissociation reaction of ammonium perchlorate 2NH4ClO4 -----> N2 + Cl2 + 2O2 + 4H2O…

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Q: Exothermic reactions are favored by high temperatures. True O False

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Q: Quen's 228 233 ты -та+ Ra₂ 88 Ra 228 89 go Ac + ₂B. 88 Criven Statement is truve ar fulde. the…

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Q: Exothermic reactions are favored by high temperatures. True O False

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Q: : In some application, there are used C,Hy as a fuel to produce energy, during analysis gases of…

A: Fuel gas means gas generated at a petroleum refinery or petrochemical plant and that is combusted…

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Q: 0 My 0

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Q: When you calculate the molality. The number of moles of solution is important. *

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Q: Starting from the wedge-and-dash structure below, rotate the back carbon to provide the Newman…

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Q: 9. Determine if a precipitate forms when 800.0 mL of 2.00 x 10' M BINO) is added to 200.0 mL of 5.00…

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Q: A1 predict tthe product of the following reaction

A: Alkene gives an electrophilic addition reaction with hydrogen halide to form an alkyl halide.

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Q: What is the hydronium ion concentration for a 0.265 M solution of HCIO that has a K, -2.9 x 10? What…

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Q: The light can be passing through components with ionic bonds O False O True *

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Q: 7. The point d is the (A) Triple 8. Na-so point. (B) Melting Phase E (C) Critical Phase Phase (D)…

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Q: Q3/ Synthesis the following compounds using any organic or inorganic reagents : from 4-bromo phenol…

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Q: The structure of an atom, theoretically consisting of a positively charged neutral False *

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Q: Fully label the unlabelled Galvanic cell below using the following information: Electrodes:…

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Q: 3. Solutions of aqueous CaCl, and aqueous CuSO, are mixed in a beaker. a) Write the balanced…

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Q: mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude…

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Q: 3. Solutions of aqueous CaCl, and aqueous CuSO, are mixed in a beaker. a) Write the balanced…

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Group 14 Elements

The following elements come under group 14 of the periodic table.