When securing a round bottom flask with a clamp, ensure that the clamp is tightened.

fe 55.85 g/mol and h2o 18.02 g/mol.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

answer: they produce more slow than unicellular organisms.