This unit discusses in detail the role of catalysts to lower the activation energy of reactions. the term catalyst appears in nonscientific discussions to refer to something that provokes or speeds significant change or action. consider this example from the 2006 associated press article "chernobyl cover-up a catalyst for glasnost": "for the soviet union, chernobyl was a catalyst that forced the government into an unprecedented show of openness that paved the way for reforms leading to the soviet collapse." discuss how this scientific term has made its way into common usage. does the term carry the same meaning in regular usage? how is it used differently in a scientific context compared to a nonscientific context?

What element breaks down into yttrium-90?

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

What are the first three quantum numbers for the electrons located in subshell 2s?