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Bromine is a chemical element with symbol Br and atomic number 35. It is a halogen. .... with chlorine gas. In this treatment, bromide anions are oxidized to bromine by the chlorine gas. 2 Br<sup...

How is the oxidation state of bromine in Br2 determined? - Quora


Jun 28, 2016 ... Br2 is the natural state for bromine, so its valence (oxidation state) is 0. ... How do you determine the chemical formula for bromine gas?

Assorted reactions of the halogens - Chemguide


Bromine vapour and hydrogen combine with a mild explosion if you put a flame in. ... with the phosphorus and the liquid bromine than between phosphorus and chlorine gas. ... The iron has been oxidised from an oxidation state of zero to +3.

Bromine - Element information, properties and uses | Periodic Table


Element Bromine (Br), Group 17, Atomic Number 35, p-block, Mass 79.904. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and ...

Table 8.3 - University of Illinois Archives

archives.library.illinois.edu/erec/University Archives/1505050/Rogers/Text8/Tx83/tx83.html

Bromine can be prepared by bubbling chlorine gas through a solution of sodium ... The oxidation number of bromine changes from -1 to 0: bromine is oxidized.

Unit 9 Practice Test File - Moodle


____ 1) What is the oxidation number of bromine in the BrO3- ion? A) -1 .... ____ 17) The balanced half-reaction in which chlorine gas is reduced to the aqueous ...

Hydrogen»hydrogen bromide [WebElements Periodic Table]


The oxidation number of hydrogen in hydrogen bromide is 1. ... may be made in the laboratory by the reaction between purified hydrogen gas and bromine.

Chemistry redox reaction balancing help? | Yahoo Answers


Oct 21, 2012 ... Bromine gas is used to make fire-retardant chemicals used on children's pajamas . ... NaBr + NaOBr Reduction: Br2(o) = Br(-1) Oxidation: Oxygen gets oxidized ... Possibly there is trouble with the state of NaOBr(aq), but since ...

Halogen elements Facts, information, pictures | Encyclopedia.com ...


Fluorine and chlorine are gases, iodine is a solid, and bromine is one of only .... to heat, oxidation, and oils, neoprene is used in a number of automobile parts.

Halogens - Chemistry Encyclopedia - uses, elements, gas, number ...


Liquid bromine and its vapors are brownish red. ... a formal oxidation number of – 1, whereas the other halogens can exhibit a range of oxidation numbers.

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bromine (Br) | chemical element | Britannica.com


The most stable oxidation state of the element is −1, in which bromine occurs ... A solution of the gas in water is called hydrobromic acid, a strong acid that ...

Rules for Assigning Oxidation Numbers to Elements - For Dummies


Oxidation numbers are assigned to elements using these rules: ... Chlorine, bromine, and iodine usually have an oxidation number of –1, unless they're in ...

The Chemistry of the Halogens


Common Oxidation Numbers for the Halogens, General Trends in Halogen ..... Bromine reacts with chlorine, for example, to give BrCl, which is a gas at room ...