Question

The formula equation below represents a _________ reaction. CaO (s) H2O (l) → Ca(OH)2(l)

The formula equation below represents a _________ reaction. Ca(OH)2 (aq) 2 HCl (aq) → CaCl2 (aq) 2 HOH (l)
The formula equation below represents a _________ reaction. C (s) O2 (g) → CO2(g)
The formula equation below represents a _________ reaction. Cu (s) 2AgNO3 (aq) → 2 Ag(s) Cu(NO3)2 (aq)
The formula equation below represents a _________ reaction. NH4NO3 (s) → N2O (g) 2H2O (l)

Answer 1

The first one is a synthesis reaction (A + B --> AB)
Second one is a double displacement (AB + CD --> AD + CB)
Third one is a synthesis
Fourth one is a single displacement (A + BC --> B + AC)
The fifth one is a decomposition (AB --> A + B). This is a reverse of synthesis.