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What is Melting Point? - Definition, Range & Determination

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is the name of the process that occurs when a solid changes to a liquid?

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1. A pure compound melts at 48-49 degrees Celsius. If a trace amount of an impure compound, whose melting point is 80-82 degrees Celsius, is mixed in with the first compound, what happens to the melting point?

2. A pure compound melts at 48-49 degrees Celsius. If a few grains of sand are mixed in with the first compound, what happens to the melting point?

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About This Quiz & Worksheet

This quiz/worksheet combo will assess your understanding regarding melting point. You'll need to be able to identify how given scenarios impact the melting point of a substance.

Quiz & Worksheet Goals

In these assessments, you will realize what you know about the following:

  • A process that occurs when a solid changes to a liquid
  • Why is melting point an inaccurate term
  • What happens when sand is mixed with a compound

Skills Practiced

  • Information recall - access the knowledge you've gained regarding a process that occurs when a solid changes to a liquid and know the results of it
  • Knowledge application - use your knowledge to answer a question about why melting point is an inaccurate term
  • Interpreting information - verify you can read and correctly interpret information on how the melting point can be used to gauge a substance's purity

Additional Learning

Keep expanding your knowledge of melting point by reviewing the lesson called What is Melting Point? - Definition, Range & Determination. The lesson will cover the following areas:

  • Everyday and scientific definitions of melting point
  • What happens during the melting process
  • Phase diagrams
  • The importance of melting point
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