Saeng Part A. Lead(II) nitrate with potassium iodide. Part B. Copper(II) sulfate

Question

Saeng Part A. Lead(II) nitrate with potassium iodide. Part B. Copper(II) sulfate solution with iron metal. Part C. Calcium carbonate with hydrochloric acid. Part D. Hydrogen peroxide with potassium iodide catalyst. Part E, first reaction. Magnesium metal with hydrochloric acid. Part E, second reaction. Combustion of hydrogen gas. X Y (Type the molecular equation here) Eq 1) X Y X Y X Y X Y X Y Part F. Ammonium carbonate with heat. X Y Part G. Copper metal with oxygen gas X Y Part H. Copper(I) sulfate pentahydrate with heat.

Explanation / Answer

. Pb(NO3)2(aq) + 2KI(aq) ----------> PbI2(s) + 2KNO3(aq)
B. CuSO4(aq) + Fe(s) ------------> FeSO4(aq) + Cu(s)
C. CaCO3(s) + 2HCl(aq) ------------> CaCl2(aq) + CO2(g) + H2O(l)
D. H2O2(aq) + KI(aq) ---->2KOH(aq) + I2(s)
E. Mg(s) + 2HCl(aq) ---------> MgCl2(aq) + H2(g)
E. 2H2(g) + O2(g) --------> 2H2O(g)
F. (HN4)2Co3(s) -------> 2NH3(g) + H2O(l) + CO2(g)
G. 2Cu(s) + O2(g) ---------> CuO(s)

H. CuSO4. 5H2O ----------> CuSO4 + 5H2O

    blue color                       color less

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