2.2.2 Reactions of Acids

• Acids neutralize bases to form salts and water
• Match the acid with its source:

  Citric acid ↔️ Citrus fruits

  Acetic acid ↔️ Vinegar
• Strong acids have a higher concentration of H+ ions compared to weak acids.

  True
• Hydrochloric acid reacts with zinc to form zinc chloride and hydrogen gas.

  True
• Which metals react with acids to produce hydrogen gas?

  More reactive than hydrogen
• What are the products formed when an acid reacts with a metal carbonate?

  Salt, carbon dioxide, water
• Match the acid, metal carbonate, and salt in the reaction:

  Hydrochloric acid ↔️ Sodium chloride

  Sulfuric acid ↔️ Calcium sulfate

  Sodium carbonate ↔️ Carbon dioxide
• The general equation for the neutralization reaction between an acid and a metal hydroxide is: Acid + Metal Hydroxide → Salt + Water


  True
• What ion do acids produce when dissolved in water?

  Hydrogen ion (H+)
• What is an example of a weak acid?

  Acetic acid
• Which gas is produced when an acid reacts with a metal?

  Hydrogen gas
• Metals more reactive than hydrogen in the electrochemical series will react with acids
• When acids react with metal carbonates, they produce carbon dioxide, water, and a salt
• Acids have a sour taste.


  True
• What is the pH range of acidic substances?

  Less than 7
• What gas is produced when acids react with metals?

  Hydrogen
• Match the acid with its reaction products:

  HCl + Zn ↔️ ZnCl2 + H2

  H2SO4 + Mg ↔️ MgSO4 + H2
• Acids react with metal carbonates to produce a salt, carbon dioxide, and water
• The general equation for the reaction between acids and metal carbonates is: Acid + Metal Carbonate → Salt + Carbon Dioxide + Water


  True
• When acids react with metal hydroxides, they undergo a neutralization reaction.
• Match the acid, metal hydroxide, and salt in the neutralization reaction:

  Hydrochloric acid ↔️ Sodium chloride

  Sulfuric acid ↔️ Calcium sulfate

  Sodium hydroxide ↔️ Water
• A strong acid completely ionizes in water.
• When acids react with metals, they form a salt and hydrogen gas.
• What are the products formed when acids react with metals?

  Salt and hydrogen gas
• What type of reaction occurs when acids react with metal carbonates?

  Salt, carbon dioxide, water
• The reaction between an acid and a metal carbonate produces hydrogen gas.

  False
• Match the acid and metal hydroxide with their products:

  Hydrochloric acid (HCl) + Sodium hydroxide (NaOH) ↔️ Sodium chloride (NaCl) + H2O

  Sulfuric acid (H2SO4) + Calcium hydroxide (Ca(OH)2) ↔️ Calcium sulfate (CaSO4) + H2O
• The general reaction between an acid and ammonia forms a salt
• What is the process called when acids react with metal hydroxides?

  Neutralization reaction
• Acids react with metal oxides to form a salt and water.

  True
• The ammonium salts formed in acid-ammonia reactions are insoluble in water.

  False
• What are acids defined as when dissolved in water?

  Substances producing H+ ions
• Classify acids based on their ionization in water:

  1️⃣ Strong acids: Completely ionize

  2️⃣ Weak acids: Partially ionize
• What are examples of strong acids?

  HCl, H2SO4
• Acids react with metal carbonates to form a salt, carbon dioxide, and water.


  True
• When acids react with metal carbonates, they form a salt
• What is the salt formed when sulfuric acid reacts with calcium carbonate?

  Calcium sulfate
• What salt is formed when hydrochloric acid reacts with sodium hydroxide?

  Sodium chloride
• Acids have a sour taste and a pH less than 7


  True
• Strong acids have a low pH and weak acids have a higher pH

  True