What would help lesson to be more effective please fast​

What reaction is taking place? 02 + c3h8 = h20 + co2

What is the polyatamic ion of borate

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)