Question

19. Some redox reactions are also classified as which of the following?

(Points : 3)
acid-base

synthesis

single-displacement

decomposition






Question 20. 20. If ions change places and a gas is formed, then what type of reaction is indicated?
(Points : 3)
double-displacement

synthesis

decomposition

single-displacement

Answer 1

19.) Single-displacement is the correct answer.

20.) I am not sure, but Single-displacement is incorrect. At least you can cancel that one out.

Answer 2

19. Single displacement reactions are always redox reactions (they include reaction between an element and a compound where they will take place of another element in that compound).
20. It should be single displacement, where the displaced ion would form gas.