0,2x10-² g/cm³=...............kg/m³

=0,2x 10^-2x(1/1000) kg/(1/1000000)m3
=0,2x10^-2x10^-3:10^-6
=0,2x10^-2+-3-(-6)
=0,2x10 kg/m=2 kg/m^3
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