Cash Advance (CA), Cash in Advance (CID), Telegraphic Transfer (T/T)
50 Piece Per Month
Sample costs shipping and taxes has to be paid by the buyer
Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa
A Hoffman electrolysis apparatus collects the two gases separately and shows the 2 to 1 ratio nicely. If a pH indicator is used the anode becomes yellow and cathode becomes blue. Hydrogen gas can be burned to produce a small pop sound and the oxygen can be used to re-ignite a glowing wooden splint.