Recent questions in Chemical reactions

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What are the products of the thermal decomposition of calcium carbonate (CaCO3)?

asked Feb 22 in Chemical reactions by ElenaBriscoe (2.1k points)

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What is the percent yield of a reaction if 5.5 grams of product were obtained from the reaction of 7.8 grams of reactant and the theoretical yield of the product is 9.2 grams?

asked Feb 22 in Chemical reactions by VioletteM27 (2.1k points)

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What is the percent yield of a chemical reaction when 5 grams of reactant A reacted with excess reactant B to produce 3.5 grams of product C, given that the theoretical yield of C is 4 grams?

asked Feb 22 in Chemical reactions by TracieM73151 (2.5k points)

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What is the oxidation state of sulfur in SO2?

asked Feb 22 in Chemical reactions by Vernell30C7 (2.5k points)

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What is the oxidation state of nitrogen in HNO3?

asked Feb 22 in Chemical reactions by OrenTherrien (1.8k points)

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What is the oxidation state of iron in FeSO4?

asked Feb 22 in Chemical reactions by RogerDenning (2.4k points)

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What is the oxidation state of iron in Fe2O3?

asked Feb 22 in Chemical reactions by MAQShelton1 (1.7k points)

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What is the oxidation state of chromium in Cr2O3 and how does this relate to its role as an oxidizing agent in redox reactions?

asked Feb 22 in Chemical reactions by AleciaAlleyn (1.5k points)

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What is the net ionic equation of the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

asked Feb 21 in Chemical reactions by JedShackell5 (1.8k points)

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What is the heat of combustion (in kJ/mol) of butane (C4H10) gas at 25°C and 1 atm pressure, assuming complete combustion?

asked Feb 20 in Chemical reactions by WalterC19362 (2.4k points)

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What is the change in enthalpy for the reaction: 2H2 + O2 → 2H2O, given the following thermochemical equations and their respective enthalpy changes: 2H2 + O2 → 2H2O, ΔH = -484 kJ/mol H2 + ½O2 → H2O, ΔH = -286 kJ/mol

asked Feb 20 in Chemical reactions by ChuWegener2 (2.1k points)

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Using the given chemical reaction 2H₂ + O₂ → 2H₂O, balance the equation and determine the coefficients for each reactant and product.

asked Feb 20 in Chemical reactions by ClementMackr (2.5k points)

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What mass of NaOH (in grams) is needed to react completely with 25.0 g of HCl according to the following balanced chemical equation?2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + 2H2O(l)

asked Feb 20 in Chemical reactions by GarnetGenove (2.2k points)

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What is the equilibrium constant expression for the reaction: N2 (g) + 3H2 (g) ⇌ 2NH3 (g) If the equilibrium concentrations of N2, H2, and NH3 are 0.25 M, 0.08 M, and 0.40 M, respectively, what is the numerical value of the equilibrium constant Kc?

asked Feb 20 in Chemical reactions by NanVanwagene (1.8k points)

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What is the equilibrium constant expression for the following chemical reaction?2NO(g) + O2(g) ⇌ 2NO2(g)

asked Feb 20 in Chemical reactions by JeroldStonem (1.6k points)

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What is the equilibrium constant (Kc) expression for the following chemical equation: 2NO2(g) ⇌ N2O4(g)? Given the concentration of NO2 to be 0.025 mol/L and the concentration of N2O4 to be 0.0105 mol/L at equilibrium, calculate the value of Kc.

asked Feb 20 in Chemical reactions by Jerry12T3434 (1.7k points)

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What is the energy required to break the bond between two oxygen atoms in a molecule of O2, given that the bond energy of an O-O bond is 498 kJ/mol?

asked Feb 20 in Chemical reactions by Danny16L1758 (1.6k points)

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What is the amount of energy required to break the single C-H bond in the methane (CH4) molecule? Provide the answer in units of kilojoules per mole (kJ/mol).

asked Feb 20 in Chemical reactions by StefanHartin (1.7k points)

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How much energy is required to activate a chemical reaction with a rate constant of 2.5x10^-3 s^-1 if the activation energy is 50 kJ/mol?

asked Feb 20 in Chemical reactions by YukikoDalgle (1.6k points)

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What is the chemical equation for the decomposition reaction of potassium chlorate and how does the reaction change if manganese dioxide acts as a catalyst in the reaction?

asked Feb 19 in Chemical reactions by NinaDimattia (1.6k points)

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