All solutions have a ph. Acid solutions have lower ph Alkaline have higher ph. Substances that aren't acidic or alkaline that is neutral solutions usually have ph of 7. Acids have a ph that is less than 7 Alkalis have a ph that is greater than 7.
The ph scale
0 Battery
1 stomach acid
2 lemon
3 vinegar
4 tomato
5 coffee
6 Milk
7 Water
8 Blood
9 backing soda
10 Stomach tablets
11 Ammonia solution
12 soap
13 Bleach
14 Drain Cleane
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