explain why a mixture of copper oxide and magnesium reacts when heated while there is no reaction when a mixture of copper and magnesium oxide is heated​

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate