As a substance melts, heat energy is used to break the connections between molecules, and temperature until all melting is complete.

stays the same

increases steadily

decreases steadily

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

Calculate the number of molecules present in 0.750 mol of mgo.

The organs inside the body and how they function together