2.To place metals in order of their reactivity, metals are reacted with water or _____ ___ and see which metals react the most/least

To place metals in order of their reactivity, metals are reacted with water or acid solutions and observe which metals react the most or least.

Here are the steps:

1. Gather all the metals you want to test.

2. Prepare solutions of water and a strong acid like hydrochloric acid (HCl).

3. Drop each metal into the water and acid solutions separately.

4. Observe the reactions. The metals that react vigorously are more reactive. They may fizz, heat up, or even explode.

5. The metals that do not react or react slowly are less reactive.

6. Based on these observations, you can rank the metals from most reactive to least reactive.

Remember to always follow safety precautions when handling acids and reactive metals.