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Bronsted-Lowry Theory of Acids and Bases (Grade 10)

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Bronsted-Lowry Theory of Acids and Bases

Instructions: Answer the following questions, based on your knowledge of Bronsted-Lowry acids and bases.

1. 
What is HCl, if it donates a proton to water?
  1. A Bronsted-Lowry acid
  2. A Bronsted-Lowry base
  3. Water
  4. An amphiprotic substance
2. 
Which of the following refers to a substance that accepts a proton?
  1. A Bronsted-Lowry acid
  2. Water
  3. A Bronsted-Lowry base
  4. An Arrhenius base
3. 
Based on the reaction shown: [math]"HNO"_3 + "NH"_3 rarr "NO"_3^"-" + "NH"_4^"+"[/math],

Which of the following represents the Bronsted-Lowry base?
  1. [math]"HNO"_3[/math]
  2. [math]"NH"_3[/math]
  3. [math]"NO"_3^"-"[/math]
  4. [math]"NH"_4^"+"[/math]
4. 
Based on the reaction shown: [math]"HNO"_3 + "NH"_3 rarr "NO"_3^"-" + "NH"_4^"+"[/math],

Which of the following represents the Bronsted-Lowry acid and its conjugate base?
  1. [math]"HNO"_3"/""NH"_4^"+"[/math]
  2. [math]"NH"_3"/""NH"_4^"+"[/math]
  3. [math]"HNO"_3"/""NO"_3^"-"[/math]
  4. [math]"NH"_3"/""NO"_3^"-"[/math]
5. 
Based on the reaction shown: [math]"H"_2"SO"_4 + "H"_2"O" rarr "HSO"_4^"-" + "H"_3"O"^"+"[/math],

Which of the following represents the Bronsted-Lowry acid?
  1. [math]"H"_2"SO"_4[/math]
  2. [math]"H"_2"O"[/math]
  3. [math]"HSO"_4^"-"[/math]
  4. [math]"H"_3"O"^"+"[/math]
6. 
Based on the reaction shown: [math]"H"_2"SO"_4 + "H"_2"O" rarr "HSO"_4^"-" + "H"_3"O"^"+"[/math],

Which of the following represents the Bronsted-Lowry base and its conjugate acid?
  1. [math]"H"_2"SO"_4"/""HSO"_4^"-"[/math]
  2. [math]"H"_2"O""/""HSO"_4^"-"[/math]
  3. [math]"H"_2"SO"_4"/""H"_3"O"^"+"[/math]
  4. [math]"H"_2"O""/""H"_3"O"^"+"[/math]
7. 
A substance that is capable of donating or accepting a proton is called what?
  1. A Bronsted-Lowry acid
  2. A Bronsted-Lowry base
  3. An amphoteric substance
  4. None of the above
8. 
If [math]"HSO"_4^"-"[/math] acts as a Bronsted-Lowry acid, what would be its conjugate base?
  1. [math]"H"_3"SO"_4^"+"[/math]
  2. [math]"H"_2"SO"_4[/math]
  3. [math]"SO"_4^"2-"[/math]
  4. [math]"H"_2"O"[/math]
9. 
Given the following equation: [math]"H"_3"PO"_4 (aq) + "H"_2"O" (l) hArr X (aq) + "H"_3"O"^"+" (aq)[/math]

What ion is represented by X?



10. 
Given the following equation: [math]"HClO"_"4" (aq) + "H"_2"O"(l) hArr "ClO"_"4"^"-" (aq) + "H"_3"O"^"+" (aq)[/math],

Explain why [math]"HClO"_4(aq)[/math] represents a Bronsted acid in this equation.



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