What is the chemical formula and CAS number for oxygen gas?

Answer 1

THE CHEMICAL FORMULA FOR OXYGEN IS O2 MEANING THAT THERE ARE TWO ATOMS IN OXYGEN MOLECULE.FRUTHER MORE IT IS IMPORTANT TO NOTE THAT SINGLE ATOM OF OXYGEN CANNOT BE SUSTAINED IN THE SYSTEM WITH NORMAL TEM AND PRESSURE.THE EVER EXISTING ATOM OF OXYGEN IS CALLED AS NASENT OXYGEN A CAS registry number is separated by hyphens into three parts, the first consisting of up to 6 digits, the second consisting of two digits, and the third consisting of a single digit serving as a http://www.answers.com/topic/check-digit. The numbers are assigned in increasing order and do not have any inherent meaning. The checksum is calculated by taking the last digit times 1, the next digit times 2, the next digit times 3 etc., adding all these up and computing the sum http://www.answers.com/topic/modular-arithmetic 10. For example, the CAS number of http://www.answers.com/topic/water-annabelle-chvostek-album is 7732-18-5: the checksum is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105; 105 mod 10 = 5. THE CHEMICAL FORMULA FOR OXYGEN IS O2 MEANING THAT THERE ARE TWO ATOMS IN OXYGEN MOLECULE.FRUTHER MORE IT IS IMPORTANT TO NOTE THAT SINGLE ATOM OF OXYGEN CANNOT BE SUSTAINED IN THE SYSTEM WITH NORMAL TEM AND PRESSURE.THE EVER EXISTING ATOM OF OXYGEN IS CALLED AS NASENT OXYGEN A CAS registry number is separated by hyphens into three parts, the first consisting of up to 6 digits, the second consisting of two digits, and the third consisting of a single digit serving as a http://www.answers.com/topic/check-digit. The numbers are assigned in increasing order and do not have any inherent meaning. The checksum is calculated by taking the last digit times 1, the next digit times 2, the next digit times 3 etc., adding all these up and computing the sum http://www.answers.com/topic/modular-arithmetic 10. For example, the CAS number of http://www.answers.com/topic/water-annabelle-chvostek-album is 7732-18-5: the checksum is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105; 105 mod 10 = 5.

Answer 2

The chemical formula for oxygen gas is O2 and its CAS number is 7782-44-7.