Answer:
0.42g/cm³ or 420kg/m³
Step-by-step explanation:
1cm³ = 1ml
10 × 1cm³ = 10cm³
Density = Mass ÷ Volume
4.2g ÷ 10cm = 0.42 g/cm³
Density = 0.42g/cm³ or 420kg/m³
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