Acovalent chemical bond is one in which a. outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals b. outer-shell electrons of one atom are transferred to fill the inner electron shell of another atom c. electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged d. protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms e. electrons from the same atom, but opposite spins, are paired

Protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms

In meteorology, a  cloud  is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of  clouds, which is undertaken in the  cloud  physics branch of meteorology.cirrus clouds  usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds  have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds  often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )