4.2.3 Soluble salts

• What are soluble salts?

  Ionic compounds that dissolve in water
• Soluble salts dissolve in water.


  True
• What is formed when hydrochloric acid reacts with zinc?

  Zinc chloride
• All three methods for producing soluble salts result in a soluble salt in water.


  True
• In a titration, the endpoint is reached when the indicator changes color
• Reacting an acid with a metal forms a salt solution.
• Reacting an acid with a base forms a salt solution.
• Reacting a metal oxide or hydroxide with an acid forms a salt solution.

  True
• Match the steps in the titration method with their descriptions:

  Preparation ↔️ Add base to flask

  Titration ↔️ Add acid from burette

  Endpoint ↔️ Indicator changes color

  Calculation ↔️ Use acid volume to find salt
• The evaporation method can crystallize salts with lower solubility.


  True
• What type of acid reacts with copper oxide to form copper sulfate?

  Sulfuric acid
• Soluble salts are formed when an acid reacts with a metal or a base
• There are three main methods for producing soluble salts
• What is formed when sulfuric acid reacts with sodium hydroxide?

  Sodium sulfate
• Steps in the titration method to make soluble salts:

  1️⃣ Prepare the base in a flask and add an indicator

  2️⃣ Titrate the base with acid from a burette

  3️⃣ Stop at the endpoint when the indicator changes color

  4️⃣ Calculate the amount of salt produced
• What is formed when hydrochloric acid reacts with zinc?

  Zinc chloride
• What is the chemical formula of zinc chloride formed by reacting hydrochloric acid with zinc?

  ZnCl2
• What is the chemical formula of sodium sulfate formed by reacting sulfuric acid with sodium hydroxide?

  Na2SO4
• Reacting copper oxide with nitric acid forms copper nitrate and water.
• What is used to heat the salt solution in the evaporation method?

  Bunsen burner
• Sodium chloride, also known as table salt, is formed by reacting hydrochloric acid with sodium metal.
• Calcium carbonate is an example of an insoluble salt.

  True