CHEMISTRY YAY

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  • Created by: lucywolfp
  • Created on: 08-09-16 20:41
How do you do a flame test?
Clean a nichrome wire by dipping in conc. hydrochloric acid and then in a hot flame. Dip in conc. hydrochloric acid and then in the solid being tested so it sticks to the wire. Hold in flame.
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What is the flame colour for lithium?
crimson
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What is the flame colour for barium?
apple green
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What is the flame colour for potassium?
lilac
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Why is the colour shown in a flame test?
By heating, you excite electrons until they jump to a higher energy level. As they fall back to their original energy level energy is released as light.
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What causes the specific colour shown in a flame test?
As the electrons fall back to their original energy levels, a specific amount of energy is released which corresponds to a particular wavelength (on the EM light spectrum)
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What is the flame colour for calcium?
brick red
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What is the flame colour for sodium?
yellow/orange
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Other cards in this set

Card 2

Front

What is the flame colour for lithium?

Back

crimson

Card 3

Front

What is the flame colour for barium?

Back

Preview of the front of card 3

Card 4

Front

What is the flame colour for potassium?

Back

Preview of the front of card 4

Card 5

Front

Why is the colour shown in a flame test?

Back

Preview of the front of card 5
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