Which of the following chemical reactions is an oxidation-reduction reaction. Zn

Question

Which of the following chemical reactions is an oxidation-reduction reaction. Zn + S rightarrow ZnS H_2S0_4 + 2 NaOH rightarrow Na_2S0_4 + 2H_20 C0_2 + H_20 rightarrow H_2C0_3 AgN0_3 + NaCI rightarrow AgCI + NaNO_3 Which of the following types of chemical reactions is illustrated below 2C_2H_6 + 7 O_2 rightarrow 4C0_2 + 6H_2O decomposition single displacement double displacement combustion E. Choose the pair of names and formulas that do not match Aluminum bromide AIBr_3 calcium phosphate Ca_3P_2 Polassium permanganate KMnO_4 Sodium sulfite Na_2SO_3 Iron(III) oxide Fe_2O_3

Explanation / Answer

12) a)

13) D combustion

14) b & d Ca3(PO4)2 & Na2SO4

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