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Questions and Answers
What is the melting point of a substance?
What is the melting point of a substance?
- The temperature at which it becomes a solid.
- The temperature at which it changes from a solid to a liquid. (correct)
- The temperature at which it evaporates.
- The temperature at which it changes from a liquid to a gas.
What occurs at the boiling point of a substance?
What occurs at the boiling point of a substance?
- The substance changes from a solid to a liquid.
- The substance changes from a solid to a gas.
- The substance dissolves in another liquid.
- The substance changes from a liquid to a gas. (correct)
Which of the following best describes the process illustrated in the image of ice melting?
Which of the following best describes the process illustrated in the image of ice melting?
- Solid turning into a liquid. (correct)
- Solid evaporating into a gas.
- Gas transforming into a liquid.
- Liquid condensing into a solid.
Which statement correctly pairs the physical property with its description?
Which statement correctly pairs the physical property with its description?
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What visual representation is shown alongside the definitions of melting and boiling points?
What visual representation is shown alongside the definitions of melting and boiling points?
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Study Notes
Melting Point
- The temperature at which a solid substance transitions into a liquid state.
Boiling Point
- The temperature at which a liquid substance transitions into a gaseous state.
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