What text connection is used in the following: Apaycheck is to employee like an “A” is to a student Simile
Analogy
Category
Alliteration

Your answer is analogy when it compares two this in this form of sentence it will always be an analogy

The answer is analogy

(3) Containers X and Z both contain the same number of gas molecules is your answer. Following Avogadro's law, under the same temperature and pressure, the number of gas molecules is directly proportional to the volume of the gas. Equal volume under the same conditions means equal number of gas molecules.