The equation O2 + H2 --> H2O written when balance is O2 + 2H2 --> 2H2O
Telefónica Europe plc is a European broadband and telecommunications company that trades as O2 (typeset as O2). The company originated as a collection of worldwide telecommunications companies, known in the later half of the 1990s as BT Wireless, and a global mobile data business known then as Genie Internet, both subsidiaries of British Telecommunications.
Telefónica Europe provides both fixed and mobile telephony operations in the United Kingdom, Ireland, Germany, the Czech Republic, and Slovakia. O2 has additionally established a joint venture with Tesco Mobile in the United Kingdom, Ireland, Hungary and in Slovakia, and the Tchibo Mobilfunk network in Germany. Education