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What amount of Al2O3 is produced from the reaction of 3.0 mol Al with 2.0 mol Fe2O3? 2Al + Fe2O3 → Al2O3 + 2Fe

For the reduction of silver with hydrogen: 2Ag+(aq) + H2(g) → 2H+(aq) + 2Ag(s) Given the thermodynamic data in the table, what is the standard change in Gibbs free energy for this reaction at 298 K?   ΔHfo / kJ∙mol–1 So / J∙mol–1∙K–1 Ag+(aq) 105.58 72.68 Ag(s) 0 42.55 H2(g) 0 130.68 H+(aq) 0 0  

What isotope is depicted in the figure?      

For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2HgO(s) → 2Hg(l) + O2(g)   ΔGo = 117.1 kJ What is the standard Gibbs free energy of formation (ΔGfo) of mercury(II) oxide?

Which solution all at 25 oC will have the highest vapor pressure? Assume all solutions are ideal.

Which set of quantum numbers is correct and consistent with n = 3?

A mixture is made of 100.0 mL of water and 1.0 g of silver chloride, AgCl.  What does this solution look like and what mass of silver chloride is in the solution? The molar solubility of AgCl is 1.3×10–5 and the molar mass is 143.32 g/mol.

The formation of hydrazine, N2H4, is: N2(g) + 2H2(g) ⇌ N2H4(l) This reaction has the energy diagram shown. Which change will increase the value of K?

What is the correct order of size (from largest to smallest) of K, K+, Ca, and Ca2+?

What are the Brønsted-Lowry acids in this reaction? NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH–(aq)