Properties of Ionic and Covalent Molecular Substances (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How are ionic substances formed?
How are ionic substances formed?
Metals transfer electrons to non-metals
What is the typical melting point range for ionic substances?
What is the typical melting point range for ionic substances?
Typically greater than 400°C
Why do molten ionic substances conduct electricity?
Why do molten ionic substances conduct electricity?
Ions are free to move in the liquid
Why are ionic crystals brittle?
Why are ionic crystals brittle?
Like-charged ions repel when shifted
What is the usual state of covalent molecular substances at room temperature?
What is the usual state of covalent molecular substances at room temperature?
Usually gases or liquids
What happens when a covalent molecular substance boils?
What happens when a covalent molecular substance boils?
Intermolecular forces overcome, bonds intact
Why do covalent molecular substances have low boiling points?
Why do covalent molecular substances have low boiling points?
Weak intermolecular forces easily overcome
Why don't solid ionic compounds conduct electricity?
Why don't solid ionic compounds conduct electricity?
Ions locked in fixed positions
What are intramolecular bonds?
What are intramolecular bonds?
Strong covalent bonds within a molecule
Why don't pure covalent substances conduct electricity?
Why don't pure covalent substances conduct electricity?
Molecules are neutral with no charge