Section 4.2- Classification of Chemical Reactions

Question 1

a reaction in which two or more substances chemically combine to form one new substance is known as a

Answer 1

combination reaction or synthesis reaction

Question 2

the reverse of combination

involves breaking down a single reactant compound into two or more simpler substances, either elements or compound

Answer 2

decomposition reaction

Question 3

decomposition by electrical current is

Answer 3

electrolysis

Question 4

decomposition by heat is

Answer 4

thermal decomposition

Question 5

involves replacing one element in a compound with another

Answer 5

single-displacement reactions

Question 6

other names for single-displacement reactions

Answer 6

single-replacement, substitution, displacement reactions

Question 7

DO NOT LET THE FORMULA OF A REACTANT INFLUENCE YOU TO WRITE INCORRECT FORMULAS FOR PRODUCTS

Question 8

the positive and negative parts of two ionic compounds are interchanged in

Answer 8

double-displacement reactions