How would an electron shell model of an oxygen atom (o) appear after the atom has formed chemical bonds? it would have six electrons in the outermost shell.

It would have eight electrons in the outermost shell.

Explanation:

This is because O atom would have gained extra two electrons for the chemical bonding (Ionic bond) and hence, the O atom would have eight electrons in the outermost shell (in an octet state).

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.