Recent questions in Chemical reactions

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1 answer 74 views

Calculate the bond energy required to break all the C-H bonds in a mole of methane (CH4) gas.

asked Jan 23 in Chemical reactions by ShanaHarpole (1.5k points)

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1 answer 72 views

Calculate the bond energy required to break a single bond between two nitrogen atoms in a molecule of nitrogen gas (N2), given that the bond dissociation energy of N2 is 945 kJ/mol.

asked Jan 23 in Chemical reactions by HungObryan8 (2.4k points)

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1 answer 52 views

Calculate the bond energy of O-O bond in a molecule of oxygen gas (O$_2$) given that the dissociation energy required to break this bond is 498 kJ/mol.

asked Jan 23 in Chemical reactions by ClaritaSifue (1.8k points)

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Calculate the bond energy of O2 molecule in kJ/mol, given that the bond energy of O-H is 464 kJ/mol and the bond energy of H-H is 432 kJ/mol.

asked Jan 23 in Chemical reactions by HildredU3922 (1.9k points)

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1 answer 83 views

Calculate the bond energy of carbon-hydrogen bond in methane (CH4) given that the enthalpy change of combustion for methane is -890 kJ/mol and the enthalpy change for breaking carbon-hydrogen bonds is 413 kJ/mol.

asked Jan 23 in Chemical reactions by MckenzieWxs (1.6k points)

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1 answer 76 views

Calculate the bond energy for the O-H bond in a water molecule (H2O), given that the enthalpy change for the combustion of 1 mole of water is -286 kJ/mol and the O=O bond energy is 498 kJ/mol.

asked Jan 23 in Chemical reactions by HughNewquist (2.3k points)

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1 answer 65 views

Calculate the amount of heat required to break all the bonds in 5 moles of carbon dioxide using the bond energy values for the C=O bond and the O-H bond.

asked Jan 23 in Chemical reactions by MacLgq130601 (2.4k points)

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1 answer 65 views

Calculate the activation energy required for a chemical reaction to occur, given that the rate constant at 298 K is 4.70 x 10^-3 s^-1 and the rate constant at 313 K is 1.20 x 10^-2 s^-1. (Assume the Arrhenius equation applies.)

asked Jan 23 in Chemical reactions by JanisButterf (2.1k points)

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1 answer 68 views

Calculate the activation energy for the reaction between hydrogen gas and iodine gas to form hydrogen iodide, given that the rate constant at 25°C is 4.2 × 10^-4 L/mol.s and the frequency factor is 1.5 × 10^12 s^-1.

asked Jan 23 in Chemical reactions by ScarlettRobb (1.7k points)

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1 answer 78 views

Calculate the activation energy for a chemical reaction that has a rate constant of 0.007 mol/L/s at 25°C and 0.059 mol/L/s at 35°C.

asked Jan 23 in Chemical reactions by CheryleKirso (2.1k points)

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Balance the following chemical equation: Fe2O3 + CO -> Fe + CO2

asked Jan 22 in Chemical reactions by LinneaMacaul (2.2k points)

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1 answer 83 views

Balance the following chemical equation: Fe + O2 → Fe2O3

asked Jan 22 in Chemical reactions by MarisolWebst (1.8k points)

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1 answer 168 views

Balance the following chemical equation: Fe + O2 -> Fe2O3

asked Jan 22 in Chemical reactions by CorneliusChi (1.6k points)

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1 answer 78 views

Balance the chemical equation for the reaction of sulfur dioxide (SO2) with oxygen (O2) to form sulfur trioxide (SO3).

asked Jan 22 in Chemical reactions by LXJGinger283 (2.2k points)

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1 answer 72 views

Balance the chemical equation for the reaction between potassium permanganate (KMnO4) and sodium sulfite (Na2SO3) in acidic solution.

asked Jan 22 in Chemical reactions by KianCavill6 (1.6k points)

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1 answer 80 views

Balance the chemical equation for the combustion reaction of propane (C3H8) with oxygen gas to produce carbon dioxide gas and water vapor.

asked Jan 22 in Chemical reactions by CaitlynHoran (1.8k points)

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1 answer 88 views

Balance the chemical equation for the combustion of propane (C3H8) in the presence of oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).

asked Jan 22 in Chemical reactions by Vance58E9387 (1.9k points)

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1 answer 71 views

Assuming complete reaction, a chemistry student added 32 grams of reactant A to a reaction mixture that should produce 28 grams of product B. However, the actual yield of B was only 22 grams. What is the percent yield of product B for this chemical reaction?

asked Jan 22 in Chemical reactions by MalcolmUribe (2.0k points)

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1 answer 66 views

Assume a reaction where magnesium (Mg) reacts with chlorine (Cl2) to produce magnesium chloride (MgCl2). If we start with 10 grams of magnesium and 20 grams of chlorine, what mass of magnesium chloride can we produce?

asked Jan 22 in Chemical reactions by UweEales0685 (1.8k points)

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1 answer 105 views

A student wants to maximize the production of ammonia from nitrogen and hydrogen gases using the Haber process. Using Le Chatelier's principle, how can the reaction conditions be adjusted to increase the yield of ammonia? Specifically, how can changes in temperature, pressure, and concentration of reactants be used to increase the equilibrium concentration of ammonia?

asked Jan 22 in Chemical reactions by HenryWalden (1.6k points)

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