There are actually 3 types of chemical bonding- Ionic bonding, covalent bonding and metallic bonding.
regularly spaced hydrogen bondings
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Water is a compound or a molecule made by covalent bondings.
in pure metals, there is molecular bonding. These bondings are known as metallic bonds.
3 bondings + 1 electron pair = 4 (electron domains)
They form new chemical bondings, loss or gain electrons.
Cohesion. Oxygen is electronegative, and Hydrogen is electropositive.
A copper-gold alloy hasn't chemical bondings.
Two types. By saying there are two 'types' you are already stating that there are 2 differentthings and so the word 'different' isn't necessary.
Sure, but they have to leave their positions.
two types are parasitic and saprophytic
There two types of cell procaryotic and eucaryotic.