How To Test For Positive Ions - Part 1

How To Test For Positive Ions - Part 1

Assessment

Interactive Video

Science, Physics, Chemistry, Other

6th Grade - University

Hard

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The video tutorial explains how to conduct flame tests to identify positive ions, using the concept of fireworks. It details the procedure, including cleaning nichrome wire and using hydrochloric acid, and describes the characteristic flame colors produced by different metal ions. The chemistry behind these colors is explained through electron transitions. The tutorial concludes with the importance of flame tests in identifying ions.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the purpose of conducting a flame test?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the procedure for cleaning the nichrome wire before conducting a flame test.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What colors are produced by sodium and potassium ions during a flame test?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain why concentrated hydrochloric acid is used in the flame test.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How do the flame colors relate to the energy levels of electrons?

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