Respostas

2014-03-25T22:53:30-03:00
M=5g
U=10,5
V= ?
10,5= 5g
1. v
10,5v= 5g
v= 10,5
5
v= 2,1l
1 5 1
2014-03-25T22:56:54-03:00
D =m/v
10,5 = 5/V
10,5 x V= 5
V = 5/10,5
V= 0, 47cm^3
1 5 1