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05-07-2022
Chemistry

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Q: How many of the molecules shown contain only one covalent bond?
Cl₂ H₂ HCl N₂ O₂
A. 2 B. 3 C. 4 D. 5

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rose5656 rose5656

06-07-2022

Answer:

cl2 - 1 bond

HCl.- 1 bond

N2 - 3 bond

o2 - 2 bond

Cl requires one electron to complete it's octave so it share it's one electron with other chlorine and make a single covalent bond
H has one electron and Cl requires one so both form one single bond
N requires 3 electrons so it form 3 bonds with other N
oxygen requires 2 electrons so it forms 2 bond with other oxygen

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