How many moles of carbon are in 7.87 Times 10 to the power seven carbon Adams

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)

What methods could you use to solubilize calcium carbonate

How many grams of sodium chloride are in 250ml of a 2.5m naci solution