Balance the following reaction and then answer the questions. _____H2O2 → ___ H2O + _____O2 + 200kJ   How many kJ are released if 2 moles of H2O2 decompose?

Q: How many moles of KCIO, solid must be reacted according to the following balanced chemical reaction…

A: Potassium chlorate decomposes into potassium chloride and oxygen gas. The equation for the balanced…

Q: How much heat (in kilojoules) is involved when 112.4 g of water is formed according to the reaction…

A: The balanced reaction involved is H2(g) + 1/2O2(g) ↔ H2O(l), ΔH = -285.8 kJ The reaction provided…

Q: Using the reverse reaction, how much heat is required to produce 44.8g of NO using the following…

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Q: Please answer all the guide questions. Thank you! Guide questions: 1. Is the reaction exothermic or…

A: 1.)The reactions that release energy into the surroundings are known as exothermic reactions while…

Q: what quantity of coal must be burned to supply 3.18*10^6 KJ, assuming that the only combustion…

A: Given: The heat released = 3.18 × 106 kJ Standard data:  The heat of combustion of solid carbon =…

Q: Consider the thermochemical equation for acetylene (C2H2).  What mass of acetylene in grams is…

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Q: 4) What is the heat change when 18.6 g of Hydrogen reacts with excess O2 according to the following…

A: If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be…

Q: Which substance in the reaction below is reduced? V205 (s) + 5 Ca→2V0 + 5 Ca0S) a. Ca O b. V205 OCv…

A: If the chemical species undergoes chemical reaction by gaining electron, then the species get…

Q: What would be the ΔE (in kJ) for the following reaction if 6.300 moles of H2O were decomposed? 2 H2O…

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Q: How many moles of KCIO, must be reacted according to the following balanced chemical reaction to…

A: The given chemical equation: 2 KClO3 (s) → 2 KCl (s) + 3 O2 (g) 2 mol             2 mol        3 mol…

Q: How much energy is absorbed during the complete reaction of 3.00 kg carbon (MW = 12.01 g/mol) given…

A: Mole=Weight of substance/Molar mass of substance

Q: How many kilojoules are released when 124 g of Si reacts with chlorine?…

A: First convert mass into mole by dividing molar mass then calculate mole mole relationship to get…

Q: write balanced equation for each of these reactions including heat term   Solid Mercury II oxide…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: vng equat propeny specie NO; - Co2+ HNO, Co + Water appears in the balanced equation as a (reactant,…

A: Introduction :  We have to balance the reaction .

Q: According to the following reaction, how much energy is evolved during the reaction of 72.5 g B2H6…

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Q: The ∆Hfº of MgO is –602 kJ•mol‒1.  When 20.15 g MgO is decomposed at constant pressure according to…

A: Given,ΔHf = -602 KJ/molMass of MgO = 2015 gMolar mass of MgO = 40.3044 g/mol

Q: When 40.2 g of HgO (MM = 216.6 g/mol) decompose, 16.9 kJ of energy is absorbed. Calculate ΔHrxn in…

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Q: How many moles of H₂ are required to produce -7251 kJ of heat in the following reaction? N₂ (g) + 3…

A: The change in enthalpy of the given thermochemical equation suggests that 3 moles of H2 are required…

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the…

A: A balanced equation should have same number of atoms on both sides of the equation.

Q: 2 Cl2(g) + 2 H2O(g) e 4 HCl(g) + O2(g) Ke = 0.10 H2(g) + Cl2(g) e 2 HCl(g) Ke = 20 Based on the…

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Q: What mass of PCl3 would have to react in order to absorb 376 kJ of heat according to the reaction…

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Q: Acetylene can be produced by forcing calcium carbide to react with water, producing calcium…

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Q: How many moles of KCIO3 must be reacted according to the following balanced chemical reaction to…

A: The balanced reaction taking place is given as, => 2 KClO3 (s) -----> 2 KCl (s) + 3 O2 (g)…

Q: Lead (Pb) has been used for centuries. The Romans used it in their plumbing systems - the symbol for…

A: An exothermic reaction is the reaction in which energy is evolved in products.  But an endothermic…

Q: The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in…

A: The two reactions are given below:

Q: If a reaction is exothermic and has a negative ΔS, what should you do to the temperature in order to…

A: We know that, ∆G=∆H-T∆S Where,∆G=Gibbs free energy ∆S=Entropy T=Temperature in Kelvin ∆H= Enthalpy…

Q: Magnesium metal reacts with hydrochloric acid to form magnesium chloride and hydrogen gas according…

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Q: Consider the following reaction: 2 H2(g) + O2(g)  2 H2O(l) Answer the following questions: (a) How…

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Q: Enter your answer in the provided box. Calculate AG for the following reaction at 25°C: 3Mn²+ (aq) +…

A: Given that, at 25°C a reaction is 3Mn2+(aq) + 2Al(s) ⇌ 3Mn(s) + 2Al3+(aq). We have to calculate the…

Q: 1) Under constant pressure conditions, the enthalpy of a reaction is equal to: a) -pAV b) qp с) q d)…

A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…

Q: According to the following reaction, how many grams of hydrogen would be needed to produce 5.450 x…

A: In this question, we want to determine the mass of Hydrogen gas in grams unit.  You can see details…

Q: The reaction below has AH° = -110.2 kJ. 4 NO2(g) + O2(g) → 2 N205(g) Which statement is correct when…

A: In this question, we want to determine the energy when the given mass of nitrogen dioxide react with…

Q: How much heat will be released when 6.44 g of sulfur reacts with excess O2 according to the…

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Q: How many moles of KCIO3 must be reacted according to the following balanced chemical reaction to…

A: The given balanced chemical equation is as follows --- 2 KClO3 (s)   →  2 KCl (s)   +   3 O2 (g)…

Q: If 200 kJ of heat are supplied, how many grams of NO can be produced? N2(g) + O2(g)→ 2 NO(g) AH =…

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A: Given: 2KClO₃(s)→2KCl(s)+3O₂(g) ∆H= -89.4 kJ   Moles of KClO₃ to Librte -34.2 kJ of heat =?

Q: itrogen and hydrogen react to give ammonia in a combination reaction. Write and balance the…

A: Nitrogen combines with hydrogen to give ammonia is also known as synthesis reaction. This reaction…

Q: How many moles of KCIO. must be reacted according to the following balanced chemical reaction to…

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Q: Knowing the value of ΔHº for the reaction shown here, H2S (g) + 3/2 O2 (g) ⟶ H2O (g) + SO2 (g)…

A: Interpretation: The value of ∆H° for the given reaction is to be determined. Reaction: 3H2O(g) +…

Q: Which of the following represents an endothermic reaction? H2(g) + F2(g) –→ 2 HF(g) AH= -542 kJ C(s)…

A: The question is based on the concept of chemical thermodynamics. we have to identify the endothermic…

Q: Determine the AH for the reaction 2 N₂O3(g) rom the equation: 1. N2O3(g) 2. 2 N2(g) + O2(g) - 3. 2…

A: The enthalpy of a reaction is defined as the heat released or gained during the course of a…

Q: Pls help ASAP

A: The answer is given as follows

Q: Determine the AG° for the reaction of hydrogen and oxygen to form water. 2H2 (g) + O2 (g) → 2H2O (g)…

A: Given reaction is  2H2(g) + O2(g) ------> 2H2O(g)  Standard entropy change ( ∆S° ) = -89.0 J/K…

Q: Calculate the AH for the reaction NO(g) + O(g) given the following information: NO₂(g) NO(g) + O3(g)…

A: Given aim equation is :  Step equations are : Calculate the change in enthalpy of the aim equation…

Q: How much heat will be released when 1.48g of chlorine reacts with excess phosphorus according to the…

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Q: What is the ΔG° for the reaction? Given are the ΔGf° of each substance in parentheses. 3 H2S (g,…

A: Gibbs free energy change of a reaction gives the available energy of a reaction.  Gibbs free energy…

Q: Balance the following chemical reaction and pick the coefficient for H2O      H3PO4  +      NaOH  →…

A: Chemical Reaction equation :-   H3PO4  +      NaOH  →      Na3PO4  +     H2O  In balance chemical…

Q: When magnesium metal is added to a beaker of HCl(aq), a gas is produced. Knowing that magnesium is…

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Q: Consider the reaction: 8 H2O (l) + 4CO2 (g)→4  CH3OH (l) + 6 O2 (g) ΔH = +2905.6 kJ What is ΔH for…

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Q: S2- +  NO3-   NO2- +  S Water appears in the balanced equation as a fill in the blank 5 (reactant,…

A: When we write half reaction if above equation As we can see that, 1. S2- convert into S0 In above…