Expresa con números enteros las siguientes situaciones y señala con el signo + los enteros positivos y con signo - los enteros negativo. B-5 centímetros sobre el nivel del mar

porfa ayuda esta tarea es para hoy

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.