Balance each of the following chemical equations. Give your answer as coefficients separated by commas. Na2S(aq)+Cu(NO3)2(aq)→NaNO3(aq)+CuS(s) Express your answers as integers separated by commas.

8 Sb (s) + 10 HNO3 (aq) 4 Sb2O5 (s) + 5 N20 (g) + 5 H20 (1) -> If 120 g of HNO3 is reacted, how many g of H20 is formed? Write out the problem on paper showing all conversion factors, unit cancellations, calculations, s.f., etc. Answer the questions related to the setup and calculation for this problem. Be sure to use our periodic table to calculate any molar masses needed (rounded to proper number of decimal places), otherwise your values might be slightly off and answers may be marked as incorrect. Abbreviate units as follows: grams g, moles = mol. Substance #1: information given; Substance #2: information calculated Use the three blanks to enter the number, unit, and substance (in this order) that appears in the denominator of the stoichiometry conversion factor. For the molar masses needed in this problem, use the two blanks to enter the value (rounded to proper dec places) and substance (in this order). Substance #1: g/mol Substance #2: g/mol Use the three blanks to enter the…

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation   MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to obtain 285 mL Cl2(g) at 25 °C and 95 kPa?

Potassium permanganate reacts with oxalic acid (H2C2O4) in aqueous sulfuric acid according to the following reaction:   2 KMnO4(aq) + 5 H2C2O4(aq) + 3 H2SO4(aq) 2 MnSO4·H2O(s) + K2SO4(aq) + 10 CO2(g) + 6 H2O(l)   The reaction is run a second time and 8.74 g of MnSO4·H2O are obtained. What volume of carbon dioxide gas is collected at 1.01 bar and 23˚C? Answer in L with the correct number of significant figures; do not use scientific notation.

Copper(II) sulfate, CuSO4, reacts with sodium hydroxide, NaOH, in a double displacement reaction. The products are a precipitate of copper (II) hydroxide, Cu(OH)2, and an aqueous solution of sodium sulfate, Na2SO4. CuSO4(aq) + 2NaOH(aq) → Cu(OH)2(s) + Na2SO4(aq) 50.0 mL of 0.300 mol/L CuSO4 solution are mixed with an equal volume of 0.600 mol/L NaOH. The initial temperature of both solutions is 21.4°C. After mixing the solutions in a calotimeter, the highest temperature reached is 24.6 oC. Determine the change in the enthalpy of the reaction. Then write the thermochemical equation.

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Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation   MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to obtain 225 mL Cl2(g) at 25 °C and 755 Torr?

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation   MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g)    How much MnO2⁢(s) should be added to excess HCl(aq) to obtain 115 mL Cl2(g) at 25 °C and 765 Torr? mass of MnO2: ______g

Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation   MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to obtain 395 mL Cl2(g) at 25 °C and 795 Torr?

Concentrated nitric acid acts on copper to give nitrogen dioxide and dissolved copper ions (Fig. 9.11) according to the balanced chemical equation: Cu(s) + 4 H* (aq) +2 NO3¯(aq) → 2 NO2(g) + Cu²+(aq) + 2 HzO(€)