Paper:
Mark scheme:
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00:00 Q1 – Atomic structure & relative abundance
02:54 Q2 – Acid reactions & making salt crystals practical
06:53 Q3 – Energy changes
10:23 Q4 – Carbon allotropes & alloys
13:58 Q5 – Electrolysis of solutions
16:46 Q6 – Conservation of mass & moles
22:04 Q7 – Bond energies

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