Conservation+of+Matter+Mass+Analogy

Conservation Matter Analogy (copy and complete)

a. There are 400 people at a school that will represent the mass of matter in a chemical reaction. b. Teachers and students are atoms c. Classrooms are molecules d. Class changes are chemical reactions. The bell rings and students move to a different class to form different molecules. e. At the end of the reaction (class change), the same number of atoms exist, but the students and teachers are regrouped together in different molecules/rooms. f. Mass remains constant before and after the reaction. (The same number of students and teachers)

Complete the analogy for each phrase below: So….matter is not created or destroyed in a reaction = ………………………………………………………………………………. So….the number of atoms is the same before and after a reaction = ………………………………………………………….. So….the atoms are just regroup in a reaction = …………………………………………………………………………………………….