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Question
Which chemical formula correctly represents the compound having two hydrogen atoms, one carbon atom, and three oxygen atoms?
Which chemical formula correctly represents the compound having two hydrogen atoms, one carbon atom, and three oxygen atoms?
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Solution
The correct option is B H2CO3
The molecular formula of the compound having two hydrogen atoms, three oxygen atoms, and one carbon atom is H2CO3.
The correct answer is B.
Why alternative A is wrong:
HCO3 will be the chemical formula of the compound that contains three oxygen atoms, one carbon atom, and one hydrogen atom.
Why alternative C is wrong:
H3C2O3 will be the chemical formula of the compound that contains three hydrogen atoms, two carbon atoms, and three oxygen atoms.
Why alternative D is wrong:
H3CO2 will be the chemical formula of the compound that contains three hydrogen atoms, one carbon atom, and two oxygen atoms.
H2CO3
The molecular formula of the compound having two hydrogen atoms, three oxygen atoms, and one carbon atom is H2CO3.
The correct answer is B.
Why alternative A is wrong:
HCO3 will be the chemical formula of the compound that contains three oxygen atoms, one carbon atom, and one hydrogen atom.
Why alternative C is wrong:
H3C2O3 will be the chemical formula of the compound that contains three hydrogen atoms, two carbon atoms, and three oxygen atoms.
Why alternative D is wrong:
H3CO2 will be the chemical formula of the compound that contains three hydrogen atoms, one carbon atom, and two oxygen atoms.
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(b) 
(c) 