Questions: 7) Phosphoric acid 8) Hydrocyanic acid

7) Phosphoric acid 8) Hydrocyanic acid
Transcript text: 7) Phosphoric acid 8) Hydrocyanic acid
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Solution

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Solution Steps

Step 1: Identify the Chemical Formula of Phosphoric Acid

Phosphoric acid is a common inorganic acid with the chemical formula \( \text{H}_3\text{PO}_4 \).

Step 2: Identify the Chemical Formula of Hydrocyanic Acid

Hydrocyanic acid is a weak acid with the chemical formula \( \text{HCN} \).

Final Answer

\[ \boxed{\text{Phosphoric acid: } \text{H}_3\text{PO}_4} \] \[ \boxed{\text{Hydrocyanic acid: } \text{HCN}} \]

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