Multiple Choice
Which of the following is the correct chemical formula for chlorous acid?
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3. Chemical Reactions
Naming Acids
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Which of the following is the chemical formula for hydrobromic acid?
A
HBrO3
B
HBrO
C
HBr
D
H2Br
Verified step by step guidance1
Understand that hydrobromic acid is a binary acid composed of hydrogen and bromine without oxygen atoms.
Recall that acids with oxygen are called oxyacids and have formulas like HBrO or HBrO3, which are not hydrobromic acid.
Identify that the formula for hydrobromic acid must contain hydrogen (H) and bromine (Br) only, with no oxygen.
Compare the given options: HBrO3 and HBrO contain oxygen, so they are not hydrobromic acid; H2Br is not a common or correct formula for hydrobromic acid.
Conclude that the correct chemical formula for hydrobromic acid is HBr.
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