What is the percent composition of magnesium (mg) in mgo?

What is the mass of sodium in 3 moles of sodium chloride

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.