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spin [16.1K]
3 years ago
13

Not how but WHY does acid rain form?

Biology
1 answer:
Alla [95]3 years ago
8 0
<span><span>Burning of fossil fuels emits sulphur dioxide.  
<span><span>S (in coal) + O2SO2  
</span></span></span><span>
Sulphur dioxide reaches the atmosphere, it oxidizes to first form a sulphate ion.  
<span><span>
2 SO2 + O2 2 SO3</span></span></span><span> 

The sulphate ion joins with hydrigen atoms in the air and becomes sulphuric acid. This then falls back down to earth as "acid rain"         
<span><span>
SO3 + H2O H2SO<span>4

Hope this at least helped a little c:</span></span></span></span></span>
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