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Arrhenius Theory of Acids and Bases (Grade 10)

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Arrhenius Theory of Acids and Bases

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

1. 
Which of the following theories defines acid as a species that forms hydronium ion in water?
  1. Arrhenius theory
  2. Lewis acid-base theory
  3. Lowry-Bronsted theory
2. 
According to the Arrhenius theory, an acid, when dissolved in water, increases the concentration of which of the following ions?
  1. [math]"H"^+[/math]
  2. [math]"OH"^-[/math]
  3. [math]"Cl"^-[/math]
  4. [math]"H"_2"O"[/math]
3. 
According to the Arrhenius theory, a base, when dissolved in water, increases the concentration of which of the following ions?
  1. [math]"H"^+[/math]
  2. [math]"OH"^-[/math]
  3. [math]"H"_3"O"^+[/math]
  4. [math]"H"_2"O"[/math]
4. 
Which compound is an Arrhenius acid?
  1. [math]"SO"_2[/math]
  2. [math]"CaO"[/math]
  3. [math]"H"_2"SO"_4[/math]
  4. NaOH
5. 
Which compound is an Arrhenius base?
  1. [math]"SO"_2[/math]
  2. [math]"HNO"_3[/math]
  3. LiOH
  4. [math]"H"_2"O"[/math]
6. 
Which of the following substances, when dissolved in water, increases the concentration of hydroxide ions?
  1. [math]"H"_3"PO"_4[/math]
  2. NaOH
  3. [math]"H"_2"O"[/math]
  4. [math]"CO"_2[/math]
7. 
Which of the following substances, when dissolved in water, increases the concentration of hydrogen ions?
  1. [math]"H"_2"SO"_3[/math]
  2. NaOH
  3. [math]"H"_2"O"[/math]
  4. [math]"SO"_2[/math]
8. 
Which of the following is NOT produced when magnesium hydroxide is dissolved in water?
  1. [math]"H"^+[/math]
  2. [math]"Mg"^"2+"[/math]
  3. [math]"OH"^-[/math]
  4. None of the above
9. 
Given the following equation: [math]"H"_2"O" (l) + "HBr" (g) rarr "H"_3"O"^"+" (aq) + "Br"^"-" (aq)[/math]

Explain why hydrogen bromide in the equation is an Arrhenius acid.



10. 
Name the two ions found in sulfuric acid.



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