Podcast
Questions and Answers
What type of mixture is a solution?
What type of mixture is a solution?
- Heterogeneous
- Colloidal
- Suspension
- Homogeneous (correct)
Why do sugar crystals disappear when added to water?
Why do sugar crystals disappear when added to water?
- They evaporate
- They react with water
- They dissolve (correct)
- They become invisible
How do hummingbirds obtain nectar from flowers?
How do hummingbirds obtain nectar from flowers?
- Through their feet
- Through their long beaks (correct)
- By biting the flowers
- Through their wings
What makes hummingbird food an example of a solution?
What makes hummingbird food an example of a solution?
Why is the red liquid in hummingbird food considered a solution?
Why is the red liquid in hummingbird food considered a solution?
In the context of solutions, what happens when two substances form a solution?
In the context of solutions, what happens when two substances form a solution?
Sugar dissolves in water because the positive ends of water molecules are attracted to the negative ends of sugar crystals.
Sugar dissolves in water because the positive ends of water molecules are attracted to the negative ends of sugar crystals.
In step 2 of Figure 4, the sugar molecules pull the water molecules into solution.
In step 2 of Figure 4, the sugar molecules pull the water molecules into solution.
The process of sugar dissolving in water only involves one step as shown in Figure 4.
The process of sugar dissolving in water only involves one step as shown in Figure 4.
Particles of liquids and gases move less freely than particles of solids when dissolving.
Particles of liquids and gases move less freely than particles of solids when dissolving.
Like solids, liquids and gases also dissolve in a similar three-step process when in a liquid solvent.
Like solids, liquids and gases also dissolve in a similar three-step process when in a liquid solvent.
The process of dissolving a solid in a liquid occurs throughout the solid, not just at the surface.
The process of dissolving a solid in a liquid occurs throughout the solid, not just at the surface.
