Question

it is impossible to obscure serial numbers? true or false

Answer 1

I feel like the answer is true, but don't take my word for it. Keep reading. :)

Answer 2

The pH scale measures the hydrogen concentration. (The amount of H+ ions in a solution.) The numbers range from 1 to 14, with 1 containing the most hydrogen ions and 14 having the least. 1-6 is considered acidic. 7 is normal, and 8-14 is known as basic.

Answer 3

Wrong question. Forgive me. :p

Answer 4

thats okay