Podcast
Questions and Answers
What influences the acidic or basic behavior of an oxide?
What influences the acidic or basic behavior of an oxide?
- The metallic character of the element it is bonded to (correct)
- The molecular weight of the oxide
- The number of oxygen atoms present
- The color of the oxide
Which type of oxides are formed when non-metal elements combine with oxygen?
Which type of oxides are formed when non-metal elements combine with oxygen?
- Acidic oxides (correct)
- Basic oxides
- Amphoteric oxides
- Neutral oxides
What type of oxides do metals typically form?
What type of oxides do metals typically form?
- Acidic oxides
- Amphoteric oxides
- Neutral oxides
- Basic oxides (correct)
What is the defining characteristic that distinguishes acidic and basic oxides?
What is the defining characteristic that distinguishes acidic and basic oxides?
Which type of element is most likely to create an acidic oxide?
Which type of element is most likely to create an acidic oxide?
What type of oxides are formed when a metal element combines with oxygen?
What type of oxides are formed when a metal element combines with oxygen?
Which group of oxides can behave as both acidic and basic?
Which group of oxides can behave as both acidic and basic?
When dissolved in water, what type of solution do basic oxides produce?
When dissolved in water, what type of solution do basic oxides produce?
What happens when amphoteric oxides react with acids?
What happens when amphoteric oxides react with acids?
Which theory can identify acids or bases in situations where substances exhibit both acidic and basic behavior?
Which theory can identify acids or bases in situations where substances exhibit both acidic and basic behavior?
Which of the following elements exhibits amphoteric behavior with its oxide?
Which of the following elements exhibits amphoteric behavior with its oxide?
What is the purpose of leaving the filtrate in a warm place to dry and crystallize?
What is the purpose of leaving the filtrate in a warm place to dry and crystallize?
Which compound is formed when copper(II) oxide reacts with sulfuric acid?
Which compound is formed when copper(II) oxide reacts with sulfuric acid?
What will happen if copper(II) oxide is added in insufficient amounts to the sulfuric acid?
What will happen if copper(II) oxide is added in insufficient amounts to the sulfuric acid?
Which type of base is copper(II) oxide referred to as in the given procedure?
Which type of base is copper(II) oxide referred to as in the given procedure?
What gas is produced during the reaction of copper(II) oxide and sulfuric acid?
What gas is produced during the reaction of copper(II) oxide and sulfuric acid?
Flashcards
What influences the acidic or basic behavior of an oxide?
What influences the acidic or basic behavior of an oxide?
The metallic character of the element it is bonded to influences whether an oxide will be acidic or basic.
Which type of oxides are formed when non-metal elements combine with oxygen?
Which type of oxides are formed when non-metal elements combine with oxygen?
Acidic oxides are formed when non-metal elements combine with oxygen.
What type of oxides do metals typically form?
What type of oxides do metals typically form?
Basic oxides are formed when metals combine with oxygen.
What is the defining characteristic that distinguishes acidic and basic oxides?
What is the defining characteristic that distinguishes acidic and basic oxides?
Signup and view all the flashcards
Which type of element is most likely to create an acidic oxide?
Which type of element is most likely to create an acidic oxide?
Signup and view all the flashcards
What type of oxides are formed when a metal element combines with oxygen?
What type of oxides are formed when a metal element combines with oxygen?
Signup and view all the flashcards
Which group of oxides can behave as both acidic and basic?
Which group of oxides can behave as both acidic and basic?
Signup and view all the flashcards
When dissolved in water, what type of solution do basic oxides produce?
When dissolved in water, what type of solution do basic oxides produce?
Signup and view all the flashcards
What happens when amphoteric oxides react with acids?
What happens when amphoteric oxides react with acids?
Signup and view all the flashcards
Which theory can identify acids or bases in situations where substances exhibit both acidic and basic behavior?
Which theory can identify acids or bases in situations where substances exhibit both acidic and basic behavior?
Signup and view all the flashcards
Which of the following elements exhibits amphoteric behavior with its oxide?
Which of the following elements exhibits amphoteric behavior with its oxide?
Signup and view all the flashcards
What is the purpose of leaving the filtrate in a warm place to dry and crystallize?
What is the purpose of leaving the filtrate in a warm place to dry and crystallize?
Signup and view all the flashcards
Which compound is formed when copper(II) oxide reacts with sulfuric acid?
Which compound is formed when copper(II) oxide reacts with sulfuric acid?
Signup and view all the flashcards
What will happen if copper(II) oxide is added in insufficient amounts to the sulfuric acid?
What will happen if copper(II) oxide is added in insufficient amounts to the sulfuric acid?
Signup and view all the flashcards
Which type of base is copper(II) oxide referred to as in the given procedure?
Which type of base is copper(II) oxide referred to as in the given procedure?
Signup and view all the flashcards
What gas is produced during the reaction of copper(II) oxide and sulfuric acid?
What gas is produced during the reaction of copper(II) oxide and sulfuric acid?
Signup and view all the flashcards
Study Notes
Insoluble Base Preparation
- Copper(II) oxide is an insoluble base
- To prepare it, add dilute sulfuric acid to a beaker and heat it using a bunsen burner flame
- Add copper(II) oxide a little at a time to the warm dilute sulfuric acid and stir until the copper(II) oxide is in excess
- Filter the mixture into an evaporating basin to remove the excess copper(II) oxide
- Leave the filtrate in a warm place to dry and crystallize
- Decant excess solution and blot crystals dry with filter paper
Equation of Reaction
- Copper(II) oxide + sulfuric acid → copper(II) sulphate + water
- CuO (s) + H2SO4 (aq) → CuSO4 (aq) + H2O (l)
Classifying Oxides
- Oxides are compounds made from one or more atoms of oxygen combined with one other element
- Examples of oxides include: MgO, ZnO, K2O, CO2, SO2, H2O
Acidic Oxides
- Acidic oxides are formed when a non-metal element combines with oxygen
- They react with bases to form a salt and water
- When dissolved in water, they produce an acidic solution with a low pH
- Common examples include CO2, SO2, NO2, and SiO2
Basic Oxides
- Basic oxides are formed when a metal element combines with oxygen
- They react with acids to form a salt and water
- When dissolved in water, they produce a basic solution with a high pH
- Common examples include CuO and CaO
Neutral Oxides
- Neutral oxides do not react with either acids or bases
- Examples include N2O, NO, and CO
Amphoteric Oxides
- Amphoteric oxides can behave as both acidic and basic, depending on whether the other reactant is an acid or a base
- In both cases, salt and water are formed
- Two common amphoteric oxides are zinc oxide (ZnO) and aluminum oxide (Al2O3)
- Examples of aluminum oxide behaving as a base and an acid:
- Al2O3 + 6HCl → 2AlCl3 + 3H2O (base)
- Al2O3 + 2NaOH → 2NaAlO2 + H2O (acid)
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
