4. (PUC-SP As equações: 1) CaO+CO_(2)arrow CaCO_(3) II) 2AgClarrow 2AgO+Cl_(2) são respectivamente , reações de: a) sintese e análise. b) análise e deslocamento. c) sintese e dupla troca. d) análise e deslocamento. e) análise e sintese.

The first equation is a synthesis reaction. In a synthesis reaction, two or more simple substances combine to form a more complex substance. Here, calcium oxide (CaO) and carbon dioxide (CO2) combine to form calcium carbonate (CaCO3).<br /><br />The second equation is an analysis reaction. In an analysis reaction, a complex substance breaks down into its more simple parts. Here, silver chloride (AgCl) breaks down into silver oxide (AgO) and chlorine (Cl2).<br /><br />Therefore, the correct answer is a) synthesis and analysis.