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V = 0,1*5*5 = 2,5 cm³
1
V= 2,5cm³
m = 17,85g
q = m/V = 17,85/2,5 = 7,14 g/cm³ = cynk, Zn
2
V = 2,5cm³
m = 6,75 g
q = 6,75/2,5 = 2,7 g/cm³ = glin Al
3
V = 2,5cm³
m=19,65 g
q = 19,65/2,5 = 7,86 g/cm³ = chrom Cr