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Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction:
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- list at least three quantities that must be conserved in chemical reactions.arrow_forward(a) Butane gas, C4H10, can burn completely in air [use O2(g) as the other reactant] to give carbon dioxide gas and water vapor. Write a balanced equation for this combustion reaction. (b) Write a balanced chemical equation for the complete combustion of C3H7BO3, a gasoline additive. The products of combustion are CO2(g), H2O(g), and B2O3(s).arrow_forwardAcetone, (CH3)2CO, is an important industrial compound. Although its toxicity is relatively low, workers using it must be careful to avoid flames and sparks because this compound burns readily in air. Write the balanced equation for the combustion of acetone.arrow_forward
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- Classify each of the following reactions as a combination reaction, decomposition reaction, displacement reaction, or combustion reaction. a When they are heated, ammonium dichromate crystals, (NH4)2Cr2O7, decompose to give nitrogen, water vapor, and solid chromium(III) oxide, Cr2O3. b When aqueous ammonium nitrite, NH4NO2, is heated, it gives nitrogen and water vapor. c When gaseous ammonia, NH3, reacts with hydrogen chloride gas, HCl, fine crystals of ammonium chloride, NH4Cl, are formed. d Aluminum added to an aqueous solution of sulfuric acid, H2SO4, forms a solution of aluminum sulfate, A12(SO4)3. Hydrogen gas is released.arrow_forward3.81 The particulate scale drawing shown depicts the products of a reaction between H2 and O2 molecules. (a) Draw a similar representation for the reactants that must have been present before the reaction took place. (b) Write a balanced chemical equation for the reaction, using the smallest possible whole number coefficients.arrow_forward4.8 In an experiment carried out at very low pressure, 13x1015 molecules of H2 are reacted with acetylene, C2H2, to form ethane, C2H6, on the surface of a catalyst. Write a balanced chemical equation for this reaction. How many molecules of acetylene are consumed?arrow_forward
- On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2HNO3(aq)+Na2CO3(aq)2NaNO3(aq)+H2O(l)+CO2(g) a. Calculate H for this reaction. Approximately 2.0 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 glcm3. What mass of sodium carbonate was required for complete neutralization of the spill, and what quantity of heat was evolved? (Hf for NaNO3(aq) = 467 kJ/mol) b. According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of H, what was their major concern?arrow_forwardDisulfur dichloride, S2Cl2, is used to vulcanize rubber. It can be made by treating molten sulfur with gaseous chlorine. S8() + 4 Cl2(g) 4 S2Cl2(g) Complete this table of reaction quantities for the production of 103.5 g S2Cl2.arrow_forwardWhich of the following statements about chemical reactions is false? l type='a'> When balancing a chemical equation, all subscripts must be conserved. i>When one coefficient is doubled, the rest of the coefficients in (he balanced equation must also be doubled. i>The subscripts in a balanced equation tell us the number of atoms in a molecule. i>The phases in a chemical reaction tell us the nature of the reactants and products.arrow_forward
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