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MnO2 +4HCl--MnCl2+Cl2+2H2O #Redox Reaction# Oxidising agent# Reducing Agent
In this reaction MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂, Mn⁺⁴ gains 2 electrons and becomes Mn⁺², so it is reduced and acts as an oxidising agent. Chloride ions (Cl⁻) lose electrons to form Cl₂, so they are oxidised and act as a reducing agent. Remember: Oxidation = loss of electrons, Reduction = gain of electrons (OIL RIG
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SOLVED: Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. Which is the limiting reagent when 2.8 g of MnO2 are mixed with 42 g of HCl?MnO2(s) 4HCl(aq) → MnCl2(aq) 2H2O(l) Cl2(g)a. MnO2b. HClc. MnCl2d. H2Oe. Cl285.0 grams of H2S were reacted with 115.0 g of O2 to produce SO2 and H2O. The theoretical yield of SO2, in grams, isa. 230.0 gramsb. 70.5 gramsc. 153.5 gramsd. 85.0 gramse. 159.5 grams
SOLVED: Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. Which is the limiting reagent when 2.8 g of MnO2 are mixed with 42 g of HCl?MnO2(s) 4HCl(aq) → MnCl2(aq) 2H2O(l) Cl2(g)a. MnO2b. HClc. MnCl2d. H2Oe. Cl285.0 grams of H2S were reacted with 115.0 g of O2 to produce SO2 and H2O. The theoretical yield of SO2, in grams, isa. 230.0 gramsb. 70.5 gramsc. 153.5 gramsd. 85.0 gramse. 159.5 grams
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