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Questions and Answers
Which of the following best describes a homogeneous mixture?
Which of the following best describes a homogeneous mixture?
- A combination of substances that appear different throughout.
- A mixture that has consistent properties throughout. (correct)
- A mixture containing solely one type of particle.
- A mixture with distinct layers or zones visible.
What is true about the solid state of matter?
What is true about the solid state of matter?
- It has a well-defined shape and volume. (correct)
- It can easily be compressed.
- It changes shape to fit its container.
- It has a defined volume but no specific shape.
Which property is observed without changing the material's composition?
Which property is observed without changing the material's composition?
- Particle size
- Physical properties (correct)
- Chemical properties
- State of matter
In which of the following states of matter does a substance have no definite shape or volume?
In which of the following states of matter does a substance have no definite shape or volume?
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What characterizes a heterogeneous mixture?
What characterizes a heterogeneous mixture?
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Study Notes
Definitions
- Physical Properties: Observable or measurable attributes of a material that do not alter its composition.
- Chemical Properties: Characteristics that become apparent during a transformation in the material's composition.
States of Matter
- Solid State: Has a fixed shape and volume, with particles closely packed in a defined arrangement.
- Liquid State: Maintains a definite volume but adapts to the shape of its container due to looser particle arrangement.
- Gas State: Lacks both a defined shape and volume, expanding to fill the entire space of the container.
Types of Substances
- Pure Substances: Composed of a single type of particle, exhibiting consistent and uniform composition throughout.
- Mixtures: Combinations of two or more pure substances that retain distinct properties of the individual components.
Categories of Mixtures
- Heterogeneous Mixture: Contains varied components that do not combine uniformly, resulting in different proportions across the mixture.
- Homogeneous Mixture: Exhibits uniform properties such as texture, color, smell, or taste throughout the entire mixture.
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