Answer:
A
Explanation:
a compound is a pure substance and A tells that
Answer:
B)The octet of carbon atom remains incomplete in the molecule.
Explanation:
A pure substance is a element made up of only one type of atom or molecule.
<span>K2S(aq) + 2 HBr(aq) = 2 KBr + H2S(g)
potassium sulfide + hydrobromic acid = potassium bromide + hydrogen sulfide
The gas is H2S, hydrogen sulfide
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