An aqueous solution containing an equal number of moles of Na2HPO4 and H3PO4 is an example of a buffer solution.

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

How many atoms are in 2 moles of phosphorus

The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace