What is Ca(CN)2 reaction in water?

Provide the balanced net ionic equation between Cu2+  and Na2S2O3

Describe the reaction Cu(OH)2 → CuO + H2O

A weighed sample of sodium nitrite was treated with 0.05 mol of ceric sulfate in solution, in air-free conditions. The resulting solution was titrated with standard Fe(II) solution and 0.01 mol of Fe(II) were required. Determine the moles of sodium nitrite present in the weighed sample.  NO2– + 2 Ce4+ + H2O → NO3– + 2 Ce3+ + 2 H+ Fe2+ + Ce4+→ Fe3+ + Ce3+

Provide balanced molecular reactions: a) Na(s) + H2O(l) b) Ca(s) + H2O(l

Is Mg(OH)2 a acid, base, or neither?

A 0.8040-g sample of an iron ore is dissolved in acid. The iron is then reduced to Fe²+ and titrated with 47.22 mL of 0.02242 M KMn 04 solution. Calculat the results of this analysis in terms of % Fe (55.847 g/mol).

Calculate the equilibrium constant for the reaction:   NO2 (g)  +  NO (g)     N2O (g)  +  O2  (g)

Match each reaction or description to the change in entropy. CaCl₂ (s) + H₂O(l) CaO(s) + 2 HCl(g) Raindrops form in a cloud freezing water to form ice Frost forms on the windshield of your car Air is pumped into a tire CO₂(g) + H₂O(l) ----> H₂CO3(aq) | SOz(g) + CaO(s) -----> CaSO3(s) Ba2+ (aq) + 2F (aq) 2HgO (s) C₂H4(g) + H₂(g) ---> C₂H6 (g) boiling water to form steam dissolution of solid KCl in water PCL 3 (g) + Cl₂(g) PCL5(g) Sugar dissolves in coffee 2NO₂ (g) --> N₂O4 (g) BaF₂ (s) --> |2Hg (1) + O₂ (g) ---> --> ----> Gasoline vaporizes in the carburetor of an automobile engine Moisture condenses on the outside of a cold glass melting ice to form water mixing of two gases into one container seperating solute particles throughout a solvent Ni (s) + 2 HCl(aq) H₂(g) + NiCl₂(aq) a. As0

Identify the Oxidizing Agent and the Reducing Agent