Respostas

2014-08-12T21:42:49-03:00
2,408.10²⁵. 40= 6,02.10²³. x
x= 2,408.10²⁵.40÷6,02.10²³
x=96,32.10²⁵÷6,02.10²³
x=16.10²
x= 1600g

(dado cálcio=40 e 1 mol = 6,02.10²³)
2 4 2