Podcast
Questions and Answers
What primarily determines the properties of a substance?
What primarily determines the properties of a substance?
- The color of the molecules
- The size of the substance
- The temperature of the environment
- The properties of its atoms (correct)
All molecules of a substance are different from each other.
All molecules of a substance are different from each other.
False (B)
What happens to the molecules of a solid when they are mixed with a liquid and are attracted to the liquid molecules?
What happens to the molecules of a solid when they are mixed with a liquid and are attracted to the liquid molecules?
They attach and spread together evenly.
Some solids do not dissolve in water because their molecules are not ______ to the molecules of the liquid.
Some solids do not dissolve in water because their molecules are not ______ to the molecules of the liquid.
Match the following substances with their behavior when mixed with water:
Match the following substances with their behavior when mixed with water:
Study Notes
What Makes Substances Different?
- All molecules of the same substance are identical.
- Different substances have different molecules.
- The properties of a substance are determined by its molecules.
- Different molecules have different properties.
Mixing Solids and Liquids
- Some solids dissolve in water, while others do not.
- When solids dissolve in a liquid, the solid molecules attach to the liquid molecules, spreading evenly.
- When solids do not dissolve in a liquid, the solid molecules remain clustered together.
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Description
Explore the fundamental properties that differentiate substances and how mixtures of solids and liquids behave. This quiz covers key concepts about molecule identity, solubility, and the behaviors of different materials in mixtures.