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Pure rain water with no dissolved minerals has a PH of 7, that makes it neutral. When water has certain substances that lower the PH below 7, it is considered to be acidic. Dissolved polyatomic ions make the rain acidic. These polyatomic ions can come from the products of a cumbustion reaction (CH4 + O2 --Energy Source--> CO2 + H2O)

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Javonte Blick

Lvl 10
3y ago

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