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V5.2 ARE COMBUSTION REACTIONS ALWAYS A FLAME?
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Watch the video and then try to answer the questions.



Practical notes: see Teachers’ Guide
Think for Yourself...

Why is it necessary to heat the carbon to start with?
Why doesn't the carbon melt?
Why can the heating be stopped?
One substance is formed in the reaction. What is it likely to be?
Why do the lumps of carbon get smaller, and why is there nothing to see at the end?

Notes: see Teachers’ Guide
 
teachers’ guide v7
teachers’ guide hs5

more info
v1: flames:hydrogen
v2: flames:methane
v3: more flames
v4: candle wax
v5: combustion
v6: decomposition

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