The Law of Conservation of Charge The frictional charging process (as well as any charging process) involves a transfer of electrons between two objects. Charge is not created from nothing. The appearance of negative charge upon a rubber balloon is merely the result of its acquisition of electrons.
The official languages of the island are Spanish and English. Spanish is the primary language of Puerto Ricans, though English is taught as a foreign language in public schools from elementary levels to high school.
Mexican Spanish vs Puerto Rican Spanish: El Chavo speaks Puerto Rican. Here is my list of 101 Mexican Spanish words and phrases I heard for the first time watching El Chavo del 8 paired with the equivalent Puerto Rican Spanish word commonly used in the island, when possible. This is how El Chavo del 8 would sound speaking Puerto Rican Spanish.