Multiple Choice
Which of the following is the correct chemical formula for phosphoric acid?
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3. Chemical Reactions
Naming Acids
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Which of the following is NOT a strong acid?
A
HCl
B
H2SO4
C
HNO3
D
HF
Verified step by step guidance1
Step 1: Understand what defines a strong acid. A strong acid is one that completely dissociates into its ions in aqueous solution, meaning it releases all of its hydrogen ions (H\^+) when dissolved in water.
Step 2: Review the common strong acids. The most commonly recognized strong acids include hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3). These acids fully dissociate in water.
Step 3: Examine hydrofluoric acid (HF). Unlike the other acids listed, HF does not completely dissociate in water; it is considered a weak acid because it only partially ionizes.
Step 4: Compare the dissociation behavior of HF with the other acids. Since HF only partially ionizes, it does not meet the criteria of a strong acid.
Step 5: Conclude that HF is NOT a strong acid, while HCl, H2SO4, and HNO3 are strong acids due to their complete dissociation in aqueous solution.
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