Chemical Equations and Balancing Worksheet, Exercises of Chemistry

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EQUATIONS WORKSHEET ME a : Last A) Write balanced chemical equations for the reactions given below. B) Classify the reaction type as a) combination, b) decomposition, ¢) single- replacement, d) double-replacement, or e) combustion. C) Write the physical state for each reactant and product. rr Aqueous solutions of calcium chloride and silver nitrate are mixed. Cath, (ay) +249 NO, lop] —> Cb, CWO) lez] +2 Agls) 2) Sulfur dioxide gas is bubbled through liquid water forming sulfurous acid. 30, y) + H,0(2) > H, SO, (ag. } __=3) Zine metal is placed in an aqueous solution of cupric nitrate. Znls) - Ce CNO,), (09) —» Zntwo,) 7) + 4) Oxalic acid, H2O204, and sodium hydroxide aqueous solutions are mixed. 4,50, Cy] a NaOH Lag) > N9,6,0 lag) + 2H OCE/ Bs Solid cupric hydroxide is heated. = & (OH) 6s) A> WO Cs) + HOG ms 6) Aqueous solutions of ferric chloride and potassium phosphate are mixed. RCL, Cap] + 1, PO, (71 > Fe POC) +3 EL Coy] 7) Gaseous butane, C4H49, is bumed in air. 2G4H6 (4) +130, —» @ CO, (4) + 10H O cs) 8) Molten sodium chloride is decomposed by applying electric energy. 2 Noa (4) > aNals) +0, (7) _——=_9} Magnesium metal is placed in hydrochloric acid. Mg ls) + ahey Cag) —> MB lop] +H, (Z) C Chlorine gas is bubbled through an aqueous solution of magnesium bromide. Ch le) + Mg Br, (a#) => MgCl (ag) +Br, (€) \/ _11) Solid magnesium carbonate is heated. C Me (0, (s) Pas Mg 0(s) © 0, (9) B 12) Decomposition of aqueous hydrogen peroxide in the presence of manganese dioxide catalyst. 9 Ho (a4) — 2 HO(e) + Om hme page) Cw (s)