When metals react with water, observations can be easily made. e.g. fizzing, effervescing, flame colour.
Order of reactivity:
- Potassium - lilac flame
- Sodium - yellow flame
- Lithium - red flame
- Calcium -
Magnesium does not react with water, but it does react with steam. Zinc is protected by a layer of oxide, which makes it unreactive, so it is used as a galvaniser for roofing, and buckets. Iron rusts with water. There is not reaction between copper and water.
All of the above are increasingly reactive with acid…