Answer:
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1) Chemical reaction: HI(aq) → H⁺(aq) + I⁻(aq).
It gives an iodide anion.
2) Chemical reaction: H₂O → H⁺(aq) + OH⁻(aq).
It gives a hydroxide anion.
3) Chemical reaction: NH₄⁺(aq) → H⁺(aq) + NH₃(aq).
It gives ammonia.
4) Chemical reaction: HNO₃(aq) → H⁺(aq) + NO₃⁻(aq).
It gives nitrate anion.
Answer: pH = 1 ; It is very: acidic .
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</span>If the H₃O (hydronium) concentration is:
[H₃O]⁺ = 10⁻¹ M , the pH = 1 ; the solution is very acidic.
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Answer: 2. Heat flows from faster molecules to slower molecules when they collide.
Explanation: Hope this helped! :)