why can't we cut a stream of water with fingers easily

Asked by katyalaanchal | 16th Sep, 2010, 12:00: AM

Expert Answer:

You probably know water's chemical description is H2O. A water molecule consists of one atom of oxygen bound to two atoms of hydrogen. The hydrogen atoms are "attached" to one side of the oxygen atom, resulting in a water molecule having a positive charge on the side where the hydrogen atoms are and a negative charge on the other side, where the oxygen atom is. Since opposite electrical charges attract, water molecules tend to attract each other, making water kind of "sticky." The side with the hydrogen atoms (positive charge) attracts the oxygen side (negative charge) of a different water molecule.

All these water molecules attracting each other mean they tend to clump together. This is why water drops formed and also attract towards each other and not get separated easily due to the force of attraction between positive and negative charge which get developed on hydrogen and oxygen respectively and if we want to separate them than we have to overcome the force of attraction between 'O' and 'H'.

Answered by  | 16th Sep, 2010, 10:48: PM

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