A solution contains Al3+ and Co2+ . The addition of 0.3706 L of 1.723 M NaOH results in the complete precipitation of the ions as Al(OH)3 and Co(OH)2 . The total mass of the precipitate is 22.63 . Find the masses of Al3+ and Co2+ in the solution.

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?

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?