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Questions and Answers
What is the primary characteristic of a homogeneous mixture?
What is the primary characteristic of a homogeneous mixture?
- The components are distributed unevenly.
- The components can be easily separated.
- The particles are too small to be seen and are evenly distributed. (correct)
- The mixture exhibits distinct layers.
In a mixture of 'Galleta + Chocolate', which component is the solute?
In a mixture of 'Galleta + Chocolate', which component is the solute?
- Sugar
- Cookie
- Flour
- Chocolate (correct)
Which of the following is an example of a heterogeneous mixture?
Which of the following is an example of a heterogeneous mixture?
- Vinegar
- Saltwater
- Sugar water
- Salad (correct)
What term is used for a substance that has a fixed composition?
What term is used for a substance that has a fixed composition?
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Which statement about solutes and solvents is correct?
Which statement about solutes and solvents is correct?
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Study Notes
Mixture Components
- Solute: The substance present in a smaller amount that dissolves in the solvent.
- Solvent: The substance present in a larger amount that dissolves the solute.
- Example: In a "Galleta + Chocolate" mixture, chocolate is the solute and the cookie is the solvent.
- Example of Solution (Homogeneous): Water ($\ce{H_2O}$) acts as the solvent with other components as solutes.
Mixtures - Homogeneous & Heterogeneous
- Homogeneous Mixtures: Components are evenly distributed, particles are too small to be seen, and are indistinguishable. Also known as solutions.
- Heterogeneous Mixtures: Components are not evenly distributed, particles are large enough to be seen, and components are distinguishable Examples include cookie dough and salad.
Other Notes
- Pure Substances: Substances with a fixed composition.
- Impure Substances: Substances with a variable composition.
- Aggregation States: States of matter such as solid, liquid, and gas.
- Classification: Categorizing materials based on their properties.
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