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What volume of 0.200 M K2C2O4 is required to react completely with 30.0 mL of 0.100 M Fe(NO3)3?                            2Fe(NO3)3 + 3K2C2O4Fe2(C2O4)3 + 6KNO3   Data sheet and Periodic Table

What is the total volume of gases produced when 3.0 L of nitrogen trichloride (NCl3) decomposes into chlorine and nitrogen at a constant pressure and temperature?                2NCl3(g)N2(g) + 3Cl2(g)  Data sheet and Periodic Table

Which pure molecular substance will have the lowest vapor pressure at 25 oC?  Data sheet and Periodic Table

Which species has this ground-state electron arrangement?        1s2 2s2 2p6 3s2 3p6 3d10  Data sheet and Periodic Table

What is the standard molar enthalpy of formation for aluminum oxide (Al2O3) based on the thermochemical equations provided?4Fe(s) + 3O2(g) 2Fe2O3(s)                         ΔH°1 = –1648.4 kJ·mol–12Al(s) + Fe2O3(s)2Fe(s) + Al2O3(s)         ΔH°2 = –851.5 kJ·mol–1   Data sheet and Periodic Table

Which statement best describes the bond length(s) in the nitrite ion (shown)?  The bond length of N–O is 136 pm and N=O is 122 pm.          Data sheet and Periodic Table

What isotope is depicted in the figure?                                      Data sheet and Periodic Table

Which pure molecular substance will have the lowest vapor pressure at 25 oC?  Data sheet and Periodic Table

What element is oxidized and what is the oxidizing agent in the reaction below?                Fe2O3(s) + 3CO(g)2Fe(s) + 3CO2(g)  Data sheet and Periodic Table

Between two samples of helium and neon at the same temperature, which (if any) has the highest average kinetic energy and which (if any) has the highest average speed?   Data sheet and Periodic Table