Physical & Chemical Changes

Question

1.     Identify what kind of reaction each of the following is:
(a) X     +  Y       →   XY
(b) XY     →   X      +   Y
(c) AB   +  XY     →   AY   +   XB
(d) AB   +  X       →   AX   +   B
(e) AB   +  CD     →  AD   +   BC
(f) Acid +  base   →  salt  +   water

Answer 1

a. Combination

b. Decomposition

c. Double displacement or salt methathesis

d. Displacement

e. Double displacement

f. Neutralisation