1. Calcula la cantidad de moles que hay en; a. 1,5 g de CaCO3}
b. 2.709 x 1024 moléculas de sulfuro de sodio Na2S
c. 2,5 dm3 de O2 en condiciones normales de temperatura y presión (PTN)
d. 200 gramos de F2O
La necesito para hoy, aydua por fa

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing