Asample of nitrogen in a glass bulb has a mass of 245 mg. what is this mass in kilograms? give your answer to the correct number of significant figures. kg

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol