How many electrons does barium have to give up to achieve a noble-gas electron configuration?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.