How many lone pairs of electron are there on the central ...
How many lone pairs of electron are there on the central atom of the H2O molecules?
1
2
3
4
Correct answer is B
In a water molecule, oxygen is bonded to two hydrogen atoms. Leaving oxygen with four electrons which pair up with one another to form two lone pairs of electrons.
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What mass of sodium carbonate solution is in 500 cm3 of 0.1 molar sodium carbonate solution? (Na ...
A given amount of gas occupies 10.0 dm3 at 4atm and 273°C. The number of moles of the gas presen...
The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is ...