4.2.3 Soluble salts

• What happens when a soluble salt is added to water?

  Breaks into constituent ions
• What is the chemical formula of sodium chloride?

  NaCl
• What is the chemical formula of magnesium chloride?

  MgCl₂
• Arrange the properties of soluble salts in a logical order:

  1️⃣ Solubility in Water

  2️⃣ Formation of Ions

  3️⃣ Electrical Conductivity
• Soluble salts form clear solutions when dissolved in water.


  True
• What is the chemical formula of copper sulfate?

  CuSO₄
• Match the soluble salt with its chemical formula:

  Sodium Chloride ↔️ NaCl

  Potassium Nitrate ↔️ KNO₃

  Copper Sulfate ↔️ CuSO₄

  Magnesium Chloride ↔️ MgCl₂
• Soluble salts easily dissolve in water
• Solutions of soluble salts are electrically conductive
• Neutralization reactions produce a salt and water.

  True
• All salts containing halide ions are soluble.

  False
• Salts containing sulfate ions are insoluble with Ba²⁺, Sr²⁺, Ca²⁺, or Pb²⁺
• The solubility rules have no exceptions.

  False
• Ionic solutions of soluble salts are electrically conductive.

  True
• What is produced when an acid reacts with a base in a neutralization reaction?

  Salt and water
• Match the acid with the base to form the correct soluble salt:

  Hydrochloric acid ↔️ Sodium hydroxide

  Sulfuric acid ↔️ Potassium hydroxide

  Nitric acid ↔️ Calcium hydroxide
• Soluble salts are compounds that dissolve in water
• What is the chemical formula of potassium nitrate?

  KNO₃
• Soluble salts are commonly used in chemistry labs and industrial processes due to their ease of dissolution
• What makes solutions of soluble salts electrically conductive?

  Presence of ions
• Electrical conductivity is a property of soluble salts due to the presence of ions.

  True
• What is the chemical formula of magnesium chloride?

  MgCl₂
• Soluble salts form electrically conductive solutions because of the presence of ions.


  True
• When dissolved, soluble salts form ions.


  True
• Soluble salts are used in creating electrolytes for batteries.


  True
• Match the acid and base with the soluble salt formed:

  Hydrochloric acid ↔️ Sodium chloride

  Sulfuric acid ↔️ Potassium sulfate

  Nitric acid ↔️ Calcium nitrate
• Salts containing alkali metal ions are always soluble
• Potassium nitrate is soluble because it contains an alkali metal ion.


  True
• Match the soluble salt with its chemical formula:

  Sodium Chloride ↔️ NaCl

  Potassium Nitrate ↔️ KNO₃

  Copper Sulfate ↔️ CuSO₄

  Magnesium Chloride ↔️ MgCl₂
• Soluble salts are formed through neutralization reactions when an acid reacts with a base
• Hydrochloric acid reacts with sodium hydroxide to form sodium chloride
• Salts containing alkali metal ions are always soluble.


  True
• Match the solubility rule with an example:

  Alkali metal ions are soluble ↔️ Potassium nitrate

  Halide ions are soluble except with Ag⁺, Pb²⁺, Hg²⁺ ↔️ Silver chloride

  Sulfate ions are soluble except with Ba²⁺, Sr²⁺, Ca²⁺, Pb²⁺ ↔️ Barium sulfate
• Soluble salts are commonly used in chemistry labs due to their ease of dissolution.


  True
• What is the chemical formula of copper sulfate?

  CuSO₄
• Match the soluble salt with its chemical formula:

  Sodium Chloride ↔️ NaCl

  Potassium Nitrate ↔️ KNO₃

  Copper Sulfate ↔️ CuSO₄

  Magnesium Chloride ↔️ MgCl₂
• Soluble salts are used in chemistry to create electrolytes for batteries
• What is the chemical formula of potassium nitrate?

  KNO₃
• Soluble salts are commonly used in chemistry labs and industrial processes due to their ease of dissolution
• Soluble salts are used in chemistry to create electrolytes for batteries