Multiple Choice
When an acid is dissolved in water, which of the following correctly describes how its name is determined?
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3. Chemical Reactions
Naming Acids
Multiple Choice
Which of the following is the correct chemical formula for hydroiodic acid?
A
H_2I
B
HI
C
HIO
D
HIO_3
Verified step by step guidance1
Understand that hydroiodic acid is a binary acid composed of hydrogen and iodine.
Recall that binary acids consist of hydrogen and one other nonmetal element, and their formulas typically start with H followed by the nonmetal symbol.
Recognize that hydroiodic acid specifically contains hydrogen (H) and iodine (I) atoms in a 1:1 ratio.
Eliminate options that include oxygen (O), since hydroiodic acid does not contain oxygen; thus, HIO and HIO_3 are not correct.
Confirm that the correct formula for hydroiodic acid is HI, representing one hydrogen atom bonded to one iodine atom.
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