What are chemical and physical properties of this apple before and after it rots? What chemical and physical changes occur?

What overall charge must all compounds have

Which position represents spring in the southern hemisphere? a) b) c) d)

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.