Which of the following is an example of a single-displacement reaction? a. 4co + 3o2 = 2co2o3 b. 6nano3 = 6nano2 +3o2 c. mnso4 = mno + so3 d. cd + 2hcl = cdcl2 + h2

D. Cd + 2HCl > 2CdCl + H2

This correct because single displacement is when you have three elements and one element moves with the other opposite.
Example for you to remember: Single displacement is like going out with your boyfriend and tagging a friend along, then your boyfriend leaves you and tags along with your friend, leaving you all along.

Double Displacement is like having a double date and then switching your dates
Synthesis is like at first you are broken up with your ex and now you have gotten back with him/her
Decomposition is like being with your bf/gf then you end up breaking up
Combustion is really just any type of equation that only uses C, O, and H.

Hopes These Scenarios Help