Calculate the mass of camphor that contains a billion carbon atoms. Be sure your answer has a unit symbol if necessary, and round it to significant digits.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

What is the chemical formula for a compound between li and br? libr li2br libr2 libr3

Which of the following statements is true? a. most heat energy is easily recovered and used for useful actions. b. friction causes molecules to vibrate more slowly. burning air and gasoline in an c. engine changes chemical energy into mechanical energy. it is impossible to d. change mechanical energy into mechanical energy.