Created by StemPy LabConsider the period 3 oxides , , , and . Each oxide is treated separately with excess hot, concentrated aqueous . Which option gives both the correct order of increasing acidic character of the five oxides and the correct number of these oxides that consume to form a sodium salt?
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← Consider these ten oxides: BeO, MgO, B₂O₃, Ga₂O₃, ZnO, SnO₂, CO, Cr₂O₃, CrO₃ and Mn₂O₇. Each oxide belongs to exactly one class: acidic, basic, amphoteric or neutral. Let a be the number of amphoteric oxides and b the number of acidic oxides in the list. What is the value of 10a + b? The answer is an integer; give it exactly, with no rounding.Consider these statements about group 1 and group 2 compounds. S1: Solubility in water follows BeSO₄ > MgSO₄ > CaSO₄ > SrSO₄ > BaSO₄. S2: Solubility in water follows Be(OH)₂ < Mg(OH)₂ < Ca(OH)₂ < Ba(OH)₂. S3: The decomposition temperature of the carbonate follows MgCO₃ < CaCO₃ < SrCO₃ < BaCO₃. S4: Both Li₂CO₃ and Na₂CO₃ lose CO₂ on strong heating in a laboratory burner flame. S5: Sulfate solubility falls down group 2 because lattice enthalpy falls faster than hydration enthalpy. Which statements are correct? →
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