1) NaOH<--> Na2O + H2O . What mass (in grams) of NaOH can produce 6.9 g of water (H2O)?

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Why are the trends and exceptions to the trends in ionization energy observed?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.