Question

Match the pH value with the corresponding substance
5.5 <5.6 .
<1.0 2.9
7.34
tea vinegar acid rain blood battery acid

Answer 1

Here are the pH values matched with their corresponding substances:

1. **battery acid** - <1.0
2. **vinegar** - 2.9
3. **acid rain** - 5.5 < 5.6 (Typically around 5.6)
4. **tea** - 7.34
5. **blood** - typically around 7.4 (close to neutral but usually slightly basic)

So the pairs are:

- **battery acid**: <1.0
- **vinegar**: 2.9
- **acid rain**: 5.5
- **tea**: 7.34
- **blood**: ~7.4

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