The green residue you see in an aquarium is called - id1961849 от veerdenz2099 19.01.2020 21:47

Question

Biology: The green residue you see in an aquarium is called spirogyra cladophora nostoc volvox

veerdenz2099 · Accepted Answer

0.87 g/ml
Explanation
Density is mass divided by volume D = M/ V
D = 43.5g/50ml = 0.87 g/ml

Density D = 2.5 g/ml
Volume V = 15ml
Mass M = DV = 2.5 x 15 = 37.5 g

Density D = 5.45 g/ml
Mass M = 65 g
Volume V = M / D = 65 / 5.45 = 11.93 ml

The green residue you see in an aquarium is called spirogyra cladophora nostoc volvox

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