This introductory rate is for your first month of service and is offered to new customers signing up for our Senior Variable Rate Plan. After your first month, you will continue on the Senior Variable Rate Plan which fluctuates month to month with the natural gas market.ay-As-You-GoÂ® was designed to bring choice and savings to natural gas consumers who are establishing or re-establishing their credit. To learn more, visit our Pay-As-You-GoÂ® page or call 1-877-347-7243.
Copper(II) fluoride is an inorganic compound with the chemical formula CuF2. It is a white or green, crystalline, hygroscopic solid.
When copper is oxidized by a combination of air, humid and finely divided acid and salts in the air, then a so-called patina of copper is formed. This is a basic copper (II) carbonate/sulfate mix, which has a cyan color. The reason that the color changes is that a chemical compound of copper is formed. Copper itself is a metallic element. Compounds of elements can have totally different properties than the elements themselves (e.g. look at hydrogen and oxygen, these are gasses at room temperature, while the compound water, made of both elements is a liquid at room temperature). A similar thing you see with iron.