Freebase is the opposite of HCL, HCL is acidic, freebase is, well, a base. Thats why you use baking soda (a strong base) to make coke crack. You convert it from acid to base. Base and acid drugs are used differently, coke is snorted, crack is smoked... Freebase is usually smoked but it all depends on the chemical....
If someone came up to me on the street and asked if i wanted any base i would first assume they were talking about crack
Peace!
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