Vocabulary
What is cohesion?
The ability for water molecules to stick together.
What allows for bugs to run across the top of the water?
Surface Tension
What causes liquids to boil?
Energy and temperature.
What happened when you mixed the chemiluminescent powder into the water?
There was a slight glow and then it faded.
What are dispersion forces?
The forces that are caused by the movement of electrons within valence shells.
What is Vaporization?
The product of a liquid becoming a gas.
What is the difference between inter and intramolecular forces?
What is being acted upon.
What is the difference between boiling and melting points?
Temp, change ect
Which of the two balloons had no effect on the water stream?
The mylar balloon.
What is the melting point?
When the tight hold of attractive forces begins to loosen. Solid turning into a liquid.
What are Dipole Forces?
The attraction between polar molecules.
What are the strongest intermolecular forces?
Hydrogen Bonds.
What did salt do to the boiling temperature of water?
What happened to the water stream after charging the balloon with static electricity?
It would curve around the balloon.
What is capillary action?
What is adhesion?
When one molecule is attracted to another.
What are the forces between polar molecules?
Dipole forces.
Define boiling point.
What were the three substances involved in the "Will it over flow" lab?
Baby oil, rubbing alcohol and water.
What is surface tension?
The force between molecules of water.
What are intramolecular forces?
The forces that hold the atoms together within a molecule
What are Van der Waals forces?
Another name for intermolecular forces.
Why do liquids boil at different temperatures?
The different strength of forces within the liquid.
What was the result of cooling off or heating up glow sticks?
The brightness and time the piece glows are either sped up or slowed down.
What are hydrogen bonds?