When 2 moles of H2S(g) react with O2(g) to form H2O(l) and SO2(g) according to the following equation, 1.12×103 kJ of energy are evolved. 2H2S(g) + 3O2(g)---->2H2O(l) + 2SO2(g) Is this reaction endothermic or exothermic? _________(endothermic or exothermic) What is the value of q?  ________kJ

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Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Molar mass of CH3OH = 32.042 g/mol  Formula used :  Mass of CH3OH = Number of moles of CH3OH X Molar…

Q: When 1 mole of H2S(g) reacts with H2O(l) to form H2(g) and SO2(g) according to the following…

A: Exothermic reactions are those reactions in which heat energy is released and have negative value of…

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A: A numerical problem based on enthalpy change of reaction, which is to be accomplished.

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A: We have to predict nature of reaction and heat in joules.

Q: he combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) → 8CO2(g) +…

A: give  for 8 mole of CO2 produced to release 5314 kJ/mol of heat  then you have to determine the…

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Q: 2 moles of potassium metal reacts with liquid water to produce solid potassium hydroxide, hydrogen…

A: 2K + 2H2O →2KOH + H2  Given that ∆H = - 162.4 kJ/mol For 2 mol of potassium metal (K) , ∆H = 2 mol x…

Q: An advertisement for a commercial hand warmer claims that the hand warmer works because a chemical…

A: Answer:- This question is answered by using the simple concept of exothermic reaction in which het…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

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Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given: Heat energy produced due combustion of methanol = -515 KJ ΔH = -764 KJ/mol Molar mass of…

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Q: When 4 moles of NH3(g) react with O₂(g) to form NO(g) and H₂O(g) according to the following…

A: Given reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) The amount of energy evolved = 905 kJ We have to…

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A: One mole of nitrogen oxide, NO reacts with oxygen gas to produce a brown gas NO2 and 120 KJ ofheat…

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A: Moles of Fe2O3 reacting = mass / molar mass molar mass of Fe2O3  = 160 g/mol Hence moles of Fe2O3 =…

Q: mass of carbon dioxide

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Q: A chemical reaction is carried out in a 30.0 g calorimeter. The calorimeter has a specific heat of…

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Q: Balance the following reaction and then answer the questions. _____H2 + _____Br2 + 72.8kJ → _____HBr…

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Q: In the laboratory a "ceffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given that : Mass of zinc (mZn)= 69.11 gInitial temperature of zinc = 98.40°CMass of water (mwater)=…

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

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Q: NH3(g) + H2O(g) 02(g) --> _- NO(g) + -- Based on the enthalpies of formation, how much energy, in…

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Q: Calcium carbide, CaC2, is the raw material for the production of acetylene (used in welding…

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Q: The reaction of carbon dioxide (g) with hydrogen (g) to form carbon monoxide (g) and water(g)…

A: Recall the given reaction,                  CO2 g  +  H2 g  →  CO g  +  H2O g12.7 g of CO2 g…

Q: CH3OH(g)+32O2(g)⟶CO2(g)+2H2O(l)Δ?=−764 kJ   How much methanol, in grams, must be burned to produce…

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Q: - 2 Al(s) + Fe2O3(s) 2 Fe(s) + Al2O3(s) AH=-848.0 kJ The mass of aluminium oxide produced when -2544…

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Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given reaction:

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A:

Q: Calcium phosphide is used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and…

A: Answer :-  Increase in temperature because this is an exothermic reaction.

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Q: Classify as exothermic or endothermic CH4(g)  + 2 O2(g) + →  2 H2O(g) + CO2(g) + 889 kJ How do you…

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Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

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Q: 2. Calcium carbide, CaC2, is the raw material for the production of acetylene (used in welding…

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Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

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A: Endothermic Reaction Exothermic Reaction The energy is absorbed from the surrounding into the…