C1 States of matter and diffusion

What is an intermolecular force?

• A weak attraction between molecules
• A strong attraction between molecules
• An attraction between oppositely charged ions
• A shared pair of electrons

When a simple molecular substance melts, what is overcome?

• Intermolecular forces, the molecules separate from one another
• covalent bonds,the molecules separate from one another
• electrostatic forces, the molecules separate from one another
• delocalised electrons, the molecules separate from one another

What does the state symbol (s) mean?

• Solid
• Sand
• Sulfur
• Liquid

What does the state symbol (l) mean?

• Liquid
• Lithium
• Solid
• Low density

What does the state symbol (g) mean?

• Gas
• Germanium
• Aqueous
• Great density

What does the state symbol (aq) mean?

• Aqueous/dissolved in water
• Aquarius
• After quota
• Solid

What happens to the arrangement of particles when they are heated?

• Move further apart
• Move closer together
• Break apart
• Always vibrate more often

What is melting?

• Change from solid to liquid
• Change from liquid to gas
• Change from liquid to solid
• Change from gas to liquid

What is boiling?

• Change from liquid to gas
• Change from solid to liquid
• Change from liquid to solid
• Change from gas to liquid

What is freezing?

• Change from liquid to solid
• Change from solid to liquid
• Change from liquid to gas
• Change from gas to liquid