Write a net ionic equation for the reaction that occurs when aqueous solutions of perchloric acid and ammonia are combined.

the answer to this question is 3.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

it's c (engineer's do their work with mechanical stuff not on any living being)

answerleaving cheese out to get moldy;