Podcast
Questions and Answers
What affects the strength of an ionic bond in terms of melting and boiling points?
What affects the strength of an ionic bond in terms of melting and boiling points?
- Color of the compound
- Number of ions present
- Atomic weight of the ions
- Size and charge of the ions (correct)
Which pairing would likely have a higher melting point according to the text?
Which pairing would likely have a higher melting point according to the text?
- Group 3 / Group 5 (3+, 5-)
- Group 4 / Group 8 (4+, 8-)
- Group 1 / Group 7 (1+, 7-)
- Group 2 / Group 6 (2-, 2+) (correct)
Why do solid-state ionic compounds not conduct electricity?
Why do solid-state ionic compounds not conduct electricity?
- Because they lack ions
- The ions are too large to conduct
- Due to the absence of free-moving ions
- The lattice structure prevents ion movement (correct)
In what state do ionic compounds conduct electricity?
In what state do ionic compounds conduct electricity?
Which macromolecular structure is known for its high melting point?
Which macromolecular structure is known for its high melting point?
What property makes graphite a good conductor of electricity?
What property makes graphite a good conductor of electricity?
Why are metals typically hard?
Why are metals typically hard?
What needs to happen for atoms in a giant covalent structure to move through a solvent?
What needs to happen for atoms in a giant covalent structure to move through a solvent?
What is the main reason for the high melting and boiling points of metals?
What is the main reason for the high melting and boiling points of metals?
Why is graphite an exception when it comes to solubility?
Why is graphite an exception when it comes to solubility?
In a metallic structure, what are the particles of the 3-D lattice surrounded by?
In a metallic structure, what are the particles of the 3-D lattice surrounded by?
What type of bonding is responsible for electrical conductivity in metals?
What type of bonding is responsible for electrical conductivity in metals?
Why do giant covalent structures have high melting and boiling points?
Why do giant covalent structures have high melting and boiling points?
Why is graphite able to conduct electricity?
Why is graphite able to conduct electricity?
What contributes to the hardness of macromolecular (giant covalent) structures?
What contributes to the hardness of macromolecular (giant covalent) structures?
Why are melting and boiling points of giant covalent structures much higher than simple covalent structures?
Why are melting and boiling points of giant covalent structures much higher than simple covalent structures?
What makes graphite a good lubricant?
What makes graphite a good lubricant?
Why are giant covalent crystals considered insulators?
Why are giant covalent crystals considered insulators?
