Questions: Which acid is incorrectly paired with its name? HNO2- nitrous acid HBr - hydrobromic acid HI - hydroiodic acid H2SO4- sulfuric acid H2CO3- carbonate acid

Which acid is incorrectly paired with its name?
HNO2- nitrous acid
HBr - hydrobromic acid
HI - hydroiodic acid
H2SO4- sulfuric acid
H2CO3- carbonate acid
Transcript text: Which acid is incorrectly paired with its name? $\mathrm{HNO}_{2}-$ nitrous acid HBr - hydrobromic acid HI - hydroiodic acid $\mathrm{H}_{2} \mathrm{SO}_{4}-$ sulfuric acid $\mathrm{H}_{2} \mathrm{CO}_{3}-$ carbonate acid
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Solution

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Solution Steps

Step 1: Identify the Correct Names of the Acids

To determine which acid is incorrectly paired with its name, we need to know the correct names for each of the given chemical formulas:

  1. $\mathrm{HNO}_{2}$ is known as nitrous acid.
  2. HBr is known as hydrobromic acid.
  3. HI is known as hydroiodic acid.
  4. $\mathrm{H}_{2} \mathrm{SO}_{4}$ is known as sulfuric acid.
  5. $\mathrm{H}_{2} \mathrm{CO}_{3}$ is known as carbonic acid.
Step 2: Compare the Given Names with the Correct Names

Now, compare the given names with the correct names:

  1. $\mathrm{HNO}_{2}-$ nitrous acid (Correct)
  2. HBr - hydrobromic acid (Correct)
  3. HI - hydroiodic acid (Correct)
  4. $\mathrm{H}_{2} \mathrm{SO}_{4}-$ sulfuric acid (Correct)
  5. $\mathrm{H}_{2} \mathrm{CO}_{3}-$ carbonate acid (Incorrect, should be carbonic acid)

Final Answer

The acid that is incorrectly paired with its name is:

\[ \boxed{\mathrm{H}_{2} \mathrm{CO}_{3} - \text{carbonate acid}} \]

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