Oxidation and Reduction Reactions (Redox Reactions)

Oxidation and Reduction Reactions (Redox Reactions) This is an introduction to oxidation-reduction reactions, also known as redox reactions. Learn what redox reactions are, get examples of oxidation-reduction reactions, and find out why redox reactions are important. What Is an Oxidation-Reduction or Redox Reaction? Any chemical reaction in which the oxidation numbers (oxidation states) of the atoms are changed is an oxidation-reduction reaction. Such reactions are also known as redox reactions, which is shorthand for reduction-oxidation reactions. Oxidation and Reduction Oxidation involves an increase in oxidation number, while reduction involves a decrease in oxidation number. Usually,​ the change in oxidation number is associated with a gain or loss of electrons, but there are some redox reactions (e.g., covalent bonding) that do not involve electron transfer. Depending on the chemical reaction, oxidation and reduction may involve any of the following for a given atom, ion, or molecule: Oxidation involves the loss of electrons or hydrogen OR gain of oxygen OR increase in oxidation state.Reduction involves the gain of electrons or hydrogen OR loss of oxygen OR decrease in oxidation state. Example of an Oxidation-Reduction Reaction The reaction between hydrogen and fluorine is an example of an oxidation-reduction reaction: H2 F2 → 2 HF The overall reaction may be written as two half-reactions: H2 → 2 H 2 e− (the oxidation reaction) F2 2 e− → 2 F− (the reduction reaction) There is no net change in charge in a redox reaction so the excess electrons in the oxidation reaction must equal the number of electrons consumed by the reduction reaction. The ions combine to form hydrogen fluoride: H2 F2 → 2 H 2 F− → 2 HF Importance of Redox Reactions The electron transfer system in cells and oxidation of glucose in the human body are examples of redox reactions. Oxidation-reduction reactions are vital for biochemical reactions and industrial processes as well. Redox reactions are used to reduce ores to obtain metals, to produce electrochemical cells, to convert ammonia into nitric acid for fertilizers, and to coat compact discs.

Multilingual Create a Secondary Language Profile on LinkedIn

Multilingual Create a Secondary Language Profile on LinkedIn In July 2013, I wrote an article about how to write a secondary language profile on LinkedIn. I have never received as many comments on LinkedIn as I did on that article. Since the LinkedIn is always changing, and the information in that article is now out of date, I’m offering this useful update for any bilingual or multilingual LinkedIn users out there who want to have a profile in a second language. The general rule on LinkedIn is that you may only have one profile; having multiple profiles is a violation of the Terms of Service that could get you booted off the site. However, there is one exception to that rule: the Secondary Language Profile. As of October 2018, 70% of LinkedIn members are located outside of the US. Because such a large portion of users are multilingual and interested in connecting with people both inside and outside of English-speaking countries, LinkedIn allows users to set up additional LinkedIn profiles that cater to secondary languages. LinkedIn supports the following languages as of October 2018: English, Arabic, Bahasa Indonesia, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, French, German, Italian, Japanese, Korean, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Tagalog, Thai, Turkish NOTE: You cannot change the default language of your profile once youve set it up in a particular language. Its recommended that you set up a secondary language profile instead. Creating a Profile in Another Language To create a profile in another language, go to your Profile page and in the upper right corner, select Add profile in another language: Then choose your language from the drop-down menu: Youll also want to update your name and Headline before clicking Create Profile. Editing Your Secondary Language Profile As stated above, LinkedIn does not translate your content for you, so now youll need to edit your secondary language profile. To do so, go to new language profile by selecting it from the upper right corner: Once you are viewing your secondary language profile, you can edit the Summary, Experience, and Education sections as you normally would. When you click the pencil icon to edit one of these sections, youll see that LinkedIn provides a snapshot of your primary profile to help you: Can I Edit My Skills Endorsements or Recommendations? Your Skills and Endorsements cant be edited and will only appear in the language of your primary profile. Recommendations will also only show in the language in which they were written. How Members Will See Your Secondary Language Profile on LinkedIn When a member signs in to LinkedIn and views your profile, they will see it in the language of your primary account; or, if you have multiple profiles in several languages, viewers will see the one most relevant to them. The viewer has the ability to choose from your language profiles by selecting one from the upper right corner of your profile. All of your language profiles will show up in search engines and have their own URL that includes /?locale= and the code for that language. For instance, a profile in French would appear as https://www.linkedin.com/in/yourname/?local=fr_FR. Deleting a Secondary Language Profile If you no longer want your secondary language profile, you can delete it by selecting the language from your drop-down list and clicking the x. If you are looking to attract a multilingual audience, don’t miss creating a secondary language profile on LinkedIn. And if you have other topics you want me to address, please don’t hesitate to ask. I’m here to serve you! You can find information like this and much more in my book, How to Write a KILLER LinkedIn Profile. Get unlimited lifetime PDF updates when you purchase in print or PDF format. Need help crafting KILLER content for your profile? Check out my LinkedIn profile writing services or start with my 20-minute live LinkedIn profile review and well go from there!