2 mg + o2 → 2 mgo how many grams of mgo are produced when 40. 0 grams of mg react completely with o2? molar mass of mg is 24. 31 g/mol, and of o is 16. 00 g/mol.

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.