Why are certain solutions called strong acids and strong bases; and why are certain solutions called weak acids and weak bases? justify your answer.

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?