A través de un cuadro comparativo, establezca 3 diferencias entre un cambio o transformación física y un cambio o transformación química. Tenga en cuenta el mismo criterio al comparar.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

a corroding iron, if that's one of your choices