Balance the following redox reaction. Cr₂O72- (aq) + (aq) → 103 (aq) + Cr³+ (aq) (acidic conditions)

Q: Which of the following is occuring? State your observations. • A metallic deposit appears  •…

A: If you add copper into a zinc nitrate solution, the reaction won’t occur since metals will only…

Q: Write the complete electron configuration for the common monatomic ion formed by the element…

A: Given that -  Monoatomic atom = Bromine , Br    It is the third element of halogen group. It has…

Q: 1. Cl₂, FeCl3 2. Mg, ether 3. 4. Mild H₂O+ 5. SOCI₂ 6. NaCN 7. H₂O¹, heat 8. SOCI 9. AlCl3 Work out…

A: Reaction of Benzene.

Q: A scientist measures the standard enthalpy change for the following reaction to be - 2914.6 kJ:…

A: Heat of formation of a reaction can be calculate such as ∆Hrex =  Σ ∆Hf( product) - Σ ∆Hf( reactant)

Q: The iodide ion concentration in a solution may be determined by the precipitation of lead iodide.…

A: We can solve the given problem by using molarity equcation M1V1= M2V2

Q: The following thermochemical equation is for the reaction of Fe₂0,(s) with hydrogen (g) to form…

A: Given thermochemical equation : Fe3O4(s) + 4 H2(g) -----> 3 Fe(s) + 4 H2O(g) and for this…

Q: Maria titrated 40.00 mL of 0.50 M lactic acid with 0.25 M NaOH. What is the pH of the initial acid…

A: we have to calculate the initial pH of solution

Q: The percent mass of aluminum in Al(CH3COO)3 is.... %?  solve.

A: I have given the answer in the explanation section. Hope you will understand that.

Q: What is the pH of the solution at the equivalence point, when Julianna has added 20.00 mL of the…

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Q: Hydrogen-powered fuel cells are seen increasingly as "clean" sources of energy and are now used in…

A: The volume occupied by 1 mol of gas at standard temperature and pressure (STP) is 22.4 litres.

Q: A 0.640 M solution of a weak base (B:) is made. The Kb for this acid is 4.61 10-9 What is the pOH of…

A: Given Weak base: Concentration = 0.640 M Kb = 4.61 * 10-9  Weak acid: Concentration = 0.640 M Ka =…

Q: 火人 HO NalOa

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Q: A 1.59 mol sample of Xe gas is confined in a 38.9 liter container at 25.3 degrees celcius. If the…

A: Given here Xe gas is confined in a volume a temperature 25.3 °C and we are asked the change in the…

Q: Determine the mass of solute (in g) contained in 250.0 mL of a 1.77 M solution of AlF3. g AlF3

A: Molarity is defined as the number of moles of solute present in one liter of solution.

Q: The density of helium in a 2.00 L tank at 1.0 atm and 23 °C is ?

A: Given data, Pressure (P) = 1.0 atm Temperature (T) = 23 °C T = (23+273) K = 296 K Volume (V) = 2.0 L…

Q: Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in…

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Q: If the  ?a  of a monoprotic weak acid is  2.9×10−6,  what is the  pH  of a  0.29 M  solution of this…

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Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Isoelectronic species are those species which have same number of electrons.   Counting the number…

Q: < Question 4 of 15 Complete and balance the following half- reaction in acidic solution. Be sure to…

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Q: 1A H2A hat is the ch 0 F Ne S Cl Ar Ge As Se Br Kr IXe Sn Sb Te Rb Sr Y Zr Nb Mo Tc Ru Rh Cs Ba La…

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Q: 51. A 250.0 mL buffer solution is 0.250 mol L in acetic acid and 0.250 mol L in sodium acetate. a.…

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Q: Part B - Alkenes 1. In the chart below, draw the expanded structural formula and the condensed…

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Q: Henry titrated 50.00 mL of 0.25 M nitrous acid with 0.50 M NaOH. What is the pH of the solution at…

A: Given -&gt; Volume of nitrous acid (HNO2)= 50.00 ml Molarity of HNO2 = 0.25 M Molarity of NaOH =…

Q: According to reduction potentials in the table below, which on of the following reactions is…

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Q: Arrange the following atoms or ions in order of increasing ionization energy: From lowest to highest…

A: Ionisation energy is the minimum amount of energy required to remove electron from isolated gaseous…

Q: Which one occurs? State your observations. • A metallic deposit appears  • Bubbles appear  • A…

A: Given that -  Aqueous potassium chloride + aqueous silver nitrate    When aqueous potassium chloride…

Q: The following information is given for silicon at 1 atm: Th=2355.00°C Tm 1410.00°C Specific heat…

A: Amount of heat needed can be calculated by summation of heat needed for the individual conversions.

Q: Predict the major product(s) that are expected when the following compound is heated with…

A: Epoxides react with HBr to form halohydrin. In halohydrin.

Q: Smallest Largest 1A H 2A neon Li Be Na Mg 38 4B 5B 6B 7B8B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Rb…

A: Given element are Neon,  Krypton, helium, argon We have to arrange the given  atom in increasing…

Q: Reduced glutathione (GSH) is used to Select one: a. maintain amino acid transport across cell…

A: Reduced GSH=γ-l-glutamyl-l-cysteinyl-glycine. •Reduced glutathione (GSH) is produced from oxidised…

Q: At 30oC and 70oC the first-order rate constants of a reaction are 6.88 x 10-5 and 2.45 x 10-2 s-1…

A: Using the given temperature and rate constants, we have to calculate the activation energy

Q: predict the reaction type (single or double displacement)  -- predict the names and states of the…

A: Given reaction HCl(aq) + NaOH(aq) -&gt;

Q: What is the pH of the original 0.400 M propionic acid solution? KaHA = 1.34 x 10-5 pH of 0.40 M HA =…

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Q: Balance the following reaction in acidic solution Fe2+(aq) + NO3−(aq)  Fe3+(aq) + NO(g)

A: Balance the following reaction in acidic solution--

Q: Explain also. place the following in order of increasing metallic character. Rb Cs Na

A: Metallic character is defined as the tendency of losing electrons from valence shell of orbital…

Q: Provide the correct IUPAC name for the skeletal (line-bond) structure shown here.

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Q: - predict the reaction type (single or double displacement) -- predict the names and states of the…

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Q: A. What is the hybridization of the central atom in SO₂2Cl₂? Hybridization = sp³ 3 What are the…

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Q: From the table of reagents shown below, show how you synthesize the product from the given reactant.…

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Q: What mass of sodium bromide, NaBr, is needed to prepare 2.500 of a 0.600 M solution. A) 154.4 grams…

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Q: Draw structural formulas for the major organic product(s) of the reaction shown below. CN +…

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Q: Find moles of NaOH added and equivalence point

A: Equivalence and endpoint differ primarily in that an endpoint is the point at which a chemical…

Q: What is the pH of the solution when Henry has added 35.00 mL of 0.50 M NaOH to the 50.00 mL of 0.25…

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Q: What is the pH of the solution when Julianna has added 30.00 mL of the 0.50 M HCl to the 40.00 mL of…

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Q: a i HNO3 CH3 H₂SO4

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Q: predict the reaction type (single or double displacement)  -- predict the names and states of the…

A: Given that, Copper metal + aqueous zinc nitrate

Q: The concentration of A was monitored for the reaction A → P and the following data were obtained.…

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Q: 4. Complete the table below and answer the questions. For the Column 4, multiply [H+] and [OH-]…

A: pH is equal to the negative log of the hydronium ion concentration. pOH is equal to the negative log…

Q: (a) CH₂OCH(CH3)CH₂OH (b) PhOCH₂CH3 -OCH₂

A: Since you have posted multiple subparts,we are answering first 3 subparts of your question for…

Q: The formal charge is the "charge an element would have in a molecule or lon if all of the bonding…

A: We are to write formal charge of each atom of SeO3 and decide which lewis structure is best.