what are the type of chemical reactions for the below (synthesis, double/single displacement or decomposition)
2Na+2H2O->2NaOH+H2
2FeS2+3O2->Fe2O2+2SO2
CaCO3->CO2+CaO
2H2S+2KOH->K2S+2HOH
2Ca+4HOH->2Ca(OH)2+H2
1 answer
Don't you need to know these? What do you not understand?