Why is one metal more reactive than another?
A more reactive metal replaces a less reactive metal in a compound.
Its atoms form positive ions more readily.
In the water reaction,
metal+water→metal hydroxide+hydrogen \text{metal} + \text{water} \rightarrow \text{metal hydroxide} + \text{hydrogen} metal+water→metal hydroxide+hydrogen. The second product is hydrogen.
Salt and hydrogen.
Flashcards for AQA GCSE Chemistry 4.1.2 The reactivity series, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 22 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.