Amixture is made of two or more materials that a. can only be separated by chemical means. b. cannot be separated by any means. c. cannot be separated by physical means. d. can be separated by physical means.

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules