3.2 Reactions of Acids

• What does an acid donate when dissolved in water?

  Protons (H⁺)
• Acid-metal reactions produce a salt and hydrogen gas
• What are the products of acid-base neutralization reactions?

  Salt and water
• When dissolved in water, acids donate hydrogen ions, increasing the concentration of H⁺
• What are the products of the reaction between hydrochloric acid and iron?

  Iron(II) chloride and hydrogen
• Acids react with metals to form salt and hydrogen gas.


  True
• When HCl reacts with NaOH, the products are NaCl and H₂O
• Neutralization reactions help restore proper pH balance.


  True
• What do acids corrode when reacting with metals?

  Metals
• Why can acids react with metals?

  They donate protons
• In acid-metal reactions, the metal loses electrons
• What is the primary result of acid-base neutralization?

  Salt and water
• What is the taste of bases?

  Bitter
• What are the products when hydrochloric acid reacts with calcium carbonate?

  Calcium chloride, carbon dioxide, water
• What are the products when hydrochloric acid reacts with copper(II) oxide?

  Copper(II) chloride and water
• What happens to an amide in an acid-amide reaction?

  Hydrolysis
• What is formed when hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH)?

  NaCl and H₂O
• Match the property with its description:

  pH value ↔️ <7 for acids

  Taste ↔️ Sour for acids

  Proton donation ↔️ Donate H⁺ by acids

  Corrosiveness ↔️ Corrosive for acids
• Why do acids have a sour taste?

  Presence of H⁺ ions
• Acid-base neutralization forms a salt and water
• Acids donate protons
• In acid + metal carbonate reactions, carbon dioxide is one of the products
• Metal carbonates accept protons
• Metal oxides have a pH value less than 7.

  False
• What is the pH value of acids?

  <7
• Acids can react with metals because they donate protons, causing the metal to lose electrons and form positive metal ions.

  True
• When acids react with metals, they produce hydrogen gas
• Match the property with its correct description for acids and bases:

  pH value of acids ↔️ <7

  Proton donation by acids ↔️ Donate H⁺

  Corrosiveness of bases ↔️ Mild to moderate

  Taste of acids ↔️ Sour
• Acid-base neutralization reactions form salt and water.


  True
• Arrange the properties of acids and bases based on their pH value from acidic to basic:

  1️⃣ pH < 7 (Acids)

  2️⃣ pH > 7 (Bases)
• What do acids donate when dissolved in water?

  Protons
• Acid-metal reactions produce hydrogen gas.


  True
• What do acids donate in chemical reactions?

  Protons (H⁺)
• What are the products of an acid-metal reaction?

  Salt and hydrogen gas
• Hydrochloric acid neutralizes sodium hydroxide to form sodium chloride and water.


  True
• Bases accept protons in neutralization reactions.


  True
• Acids can react with metal carbonates because they donate protons, which causes the carbonate to release carbon dioxide.

  True
• Acids react with metal oxides because their ability to donate protons releases water.


  True
• Acids can react with metals to form positive metal ions and hydrogen gas
• Acids react with metal carbonates to release carbon dioxide