Chemical formula that compound will be made up of the same elements in the same proportion or ratio. For example, any water molecule is always made up of two hydrogen atoms and one oxygen atom in a 2:1 ratio. If we look at the relative masses of oxygen and hydrogen in a water molecule, we see that 94% of the mass of a water molecule is accounted for by oxygen and the remaining 6% is the mass of hydrogen. This mass proportion will be the same for any water molecule. The alkene called but-2-ene has two isomers, which the chemical formula CHCH=CHCH
Destruction of Syria's chemical weapons weapons-related sites, whilst unnamed Western intelligence sources believed that 45 sites existed. One U.S. official said it was not clear if the discrepancy is "a deception" or merely a "difference of definition" regarding what constitutes a chemical weapons site. In "Science Insider", experts stated that there was a possibility of incomplete record-keeping, citing an incident in 2002 wherein Albania discovered, in a cluster of mountain bunkers, 16 tons of primitive, undocumented chemical weapon agents that Albania had forgotten about. Chemical weapons expert Winfield has commented that the success of the destruction plan depends on Syria revealing all of its chemical