Answer the following questions using information obtained from lecture, the text

Question

Answer the following questions using information obtained from lecture, the textbook, or lab manual. The responses will be collected at the beginning of recitation and checked at the start of your lab section for credit. Failure to complete all answers may result in exclusion from participating in the lab. Read or review the section of your textbook describing types of reactions prior to completing this assignment. Classify each of the following reactions as combination, decomposition, single displacement, double displacement, combustion or redox reactions. In some cases, more than one descriptor may be appropriate. 2 KI(aq) + Pb(NO_3)_2(aq) rightarrow 2 KNO_3(aq) + Pbl_2(s). 2 C_2H_6 + 7 O_2 rightarrow 4 CO_2 + 6 H_2 O Zn + CuCl_2 rightarrow ZnCI_2 + Cu S + O_2 rightarrow SO_2 Cl_2 + Nil_2 rightarrow I_2 + NiCI_2 H_2O rightarrow 2 H_2 + O_2, CaCO_3 rightarrow CaO + CO_2

Explanation / Answer

1. It is double replacement reaction where iodide is replaced by nitrate ion and nitrate is replaced by iodine.

2. it is combustion reaction, where ethane combust in presence of oxygen to give CO2 and H2O, this can be termed as decomposition reaction of ethane.

3.it is single replacement reaction where copper metal ion is replaced by zinc.

4.it is redox reaction, where sulphur is oxidized( 0 to +4) and oxygen is reduced( 0 to -2)

5.It is single replacement reaction where iodine is replaced by chlorine.

6..It is decompose reaction where water decomposed to give hydrogen and oxygen.

7. it is also decompose reaction where calcium carbonate decomposed into calcium oxide and carbon dioxide

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