Science Quiz: Properties of Water
Attraction between water and a different substance
Adhesion
Occurs in plants. Helps deliver water to all parts of plants. Result of adhesion and surface tension
Capillary Action
Attraction between two water molecules
Cohesion
Mass per unit volume. The density of water is 1 g/ml. Ice floats on water because it is less dense than water
Density
Because the H2O molecules attach to the Na and Cl molecules.
Describe in detail why salt dissolves in water.
Holds the surface together, so the whole liquid moves upward
Surface tension
Surface tension is often described as "skin" because the hydrogen molecules form a thin layer at the surface of water.
Surface tension is often described as "skin" on the surface of water. Why is it described this way?
Capillary action the result of adhesion and surface tension and helps deliver water to all parts of the plant. It occurs in plants.
What is capillary action? Why does it occur?
The structure of the H2O molecule when it attaches to other H2O molecules.
What physical properties of water cause it to be such a good solvent?
The molecules at the surface of water exhibit a stronger attraction inwards compared to those not at the surface because they are more strongly held by molecules. (surface tension)
Why do the molecules at the surface of water exhibit a stronger attraction inwards compared to those not at the surface?
It is able to dissolve a wide variety of materials.
Why is water called the "universal solvent"? Why is this important for living things?
The force of attraction between water molecules
Hydrogen Bond
Electrons are transferred from 1 to the other
Ionic bond
When electrons are not shared equally in a covalent bond
Polar Covalent
Being dissolved
Solute
Solute and a solvent combined
Solution
Doing the dissolving
Solvent