Plz hurry, running out of ! match words and definitions. select the drop down arrow and choose the letter. match each word from column a with the correct definition from column b. column a column b 1. element 2. compound 3. reaction 4. catalyst 5. neutralize 6. conservation a. to make an acid or base chemically neutral b. the keeping of animals, people, or places safe c. a substance made up of two or more elements d. a substance that is made of only one kind of atom e. a substance that increases the rate of a reaction but is not used up f. a process by which certain chemicals interact to form new products