Chemical ChangesMemory Aid

Memory Aids

Part of The Reactivity SeriesGCSE Chemistry

This memory aid covers Memory Aids within The Reactivity Series for GCSE Chemistry. Revise The Reactivity Series in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 8 of 11 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.

Topic position

Section 8 of 11

Practice

20 questions

Recall

20 flashcards

🧠 Memory Aids

Reactivity series mnemonic (most to least reactive):

"Please Stop Calling Me A Cute Zebra, I Like Cute Sheep Going Past Him"

K, Na, Ca, Mg, Al, C (carbon reference), Zn, Fe, Pb, H (hydrogen reference), Cu, Ag, Au, Pt, Hg

Extraction rule — the "above/below carbon" test:

  • Above carbon → Electrolysis needed (E for Electrolysis, E for Extra reactive)
  • Below carbon → Carbon reduction possible (C for Carbon, C for Cheaper)
  • Found native (Au, Ag, Pt) → No extraction needed at all

Water reaction rule: "K, Na, Li, Ca COLD water. Mg, Al, Zn, Fe only STEAM." Think: the top four are HOT-headed enough to react with cold water!

Keep building this topic

Read this section alongside the surrounding pages in The Reactivity Series. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for The Reactivity Series

Which of the following shows metals listed in order from MOST reactive to LEAST reactive?

  • A. Copper > Iron > Zinc > Magnesium > Potassium
  • B. Potassium > Sodium > Calcium > Magnesium > Aluminium
  • C. Potassium > Sodium > Magnesium > Calcium > Aluminium
  • D. Potassium > Sodium > Calcium > Aluminium > Zinc
1 markfoundation

Iron filings are added to copper sulfate solution. Explain what happens, including what is observed and why the reaction occurs.

3 marksstandard

Quick Recall Flashcards

How do you test for hydrogen gas?
Hold a lighted splint near the gas — makes a 'squeaky pop' sound
General equation for metal + acid
Metal + Acid → Salt + Hydrogen

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