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6.4.1 Writing a chemical equation to describe a chemical process

Natural gas, which is largely methane, is burned to provide heat for cooking and domestic heating and as an industrial power source. This process of burning involves the reaction of methane with oxygen in air to produce carbon dioxide and water.

A chemical equation can be constructed for the reaction of methane with oxygen to give carbon dioxide and water as the products.

  1. The first step is to write the formulas of the reactants on the left and th
    Author(s): The Open University

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The evidence for endocrine disruption in humans

Establishing a link between endocrine disruptors and human health is complicated by the fact that experiments of the kind conducted on animals are out of the question. It would be wholly unethical to administer DDT to people, for example, to see what effects it had on them. Studies on humans are thus limited to establishing a correlation between the presence of a xenobiotic chemical in the environment and some kind of health problem.

For example, the Aamjiwnaang are a community of Nativ
Author(s): The Open University

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Convection Causes Wind: Part II
This demonstration simulates warm air rising and cold air sinking. 9th grade science teacher, Rod Benson, does a step-by-step,  narrative demonstration that includes explanations. (02:05)

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The Johnson column: Why punctuation is a prickly business
Our Johnson columnist, Lane Greene, explores why issues of punctuation make us jump at each other's throats
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Lesson 01 - One Minute Luxembourgish
In lesson 01 of One Minute Luxembourgish you will learn how to say 'hello' and 'goodbye' in Luxembourgish. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Languages at our website - http://www.oneminutelanguages.com. One Minute Luxembourgish is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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Justice: What's The Right Thing To Do? Episode 01-The Moral Side of Murder.
Harvard University's Justice: What's The Right Thing To Do? Lecture (54:56)


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4.8 Advertising

If you are managing the recruitment process by a traditional route you will now need to consider advertising the vacancy. Your organisation may have a specific policy or rules governing advertising. The cost of advertising can constitute a significant proportion of any recruitment expenditure and you need to ensure you get an effective response at the least possible cost. The important factors are:

  • the content of the advertisement (key elements of the
    Author(s): The Open University

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Area of Diagonal-Generated Triangles of Rectangle are Equal
In this video, Mr. Khan draws a box and two intersecting lines that produce several triangles. Mr. Khan proves that the area of these diagonal-generated triangles of the rectangle are equal. He goes over the formula for finding the area of a triangle. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The screen gets busy (and dark)--the viewer may want to open to 'full screen' to see everything. The sound is a little low. (04:35)
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Giving Day 2016
On April 21, members of the Vanderbilt community came together to give back to and celebrate the university during the first-ever Vanderbilt Giving Day. In just 24 hours, more than 6,100 alumni, students, parents, faculty, staff and friends made gifts of all sizes to areas across Vanderbilt and raised more than $1.3 million. Supporters alsokeep reading »
Author(s): Vanderbilt News and Communications

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Chemical weapons in Syria: The wide red line
New evidence of chemical attacks in Syria is testing Barack Obama's willingness to intervene in the country's civil war
Author(s): The Economist

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XpertTest
this is a resource about xpert
XpertTest was developed by Jennifer Coombs
This content has the following license - Creative Commons Attribution-ShareAlike

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Creative Commons Attribution-ShareAlike

Innovative Mexican Culture for Absolute Beginners #1 - How to get what you want at a vacation resort
Learn Spanish with Spanish Pod101.com! Whether you’re moving to Mexico or just visiting, you’ll need the fundamental Spanish words and phrases we cover in this Innovative Mexican Culture Absolute Beginner video series. Featuring vibrant animated scenarios and plenty of time to practice out loud, these videos cover everything from introducing yourself and talking about [...]
Author(s): SpanishPod101.com

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{Suresh 893} Nice sentences
{Suresh 893} Nice sentences अच्छे वाक्य (achhey vaaky) जब रेलगाड़ी रुकेगी , तब वे उतरेंगे | ( Jab railgaadee rukegee, tab vey utarengey.) When the train stops, then they will […]

Bob Shea: 2011 National Book Festival
ob Shea appears at the 2011 National Book Festival. Speaker Biography: Bob Shea is the author-illustrator of "Dinosaur vs. Bedtime," "Dinosaur vs. the Potty," "Dinosaur vs. the Library," "Race You to Bed!" and "New Socks." He also wrote "Big Plans," illustrated by Lane Smith. For captions, transcript, and more information visit http://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=5400.
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London: A History in Verse
http://www.hup.harvard.edu/london London has long been understood through the poetry it has inspired. In LONDON: A HISTORY IN VERSE, esteemed poet and critic Mark Ford has assembled the most capacious and wide-ranging anthology of poems about London to date, from Chaucer to Wordsworth to the present day, providing a chronological tour of urban life and of English literature. With an introductory essay exploring the cultural, political, and aesthetic significance of the verses he's selected, Ford
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5.3 Heritage case studies: Scotland

These case studies introduce various typologies of heritage and the methods used to study them. They help draw attention to the fact that the heritage traditions in England, Scotland and Wales are not the same and are enshrined in slightly different legislation. Every study of heritage requires an understanding of the legal context and the traditions and history governing the object of heritage.

The first case study, by Mary-Catherine Garden, involves public memories of two significant
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The Coming of the American Revolution, 1764-1776
By investigating the lives and events recorded in newspapers, official documents and personal correspondence from the collection of the Massachusetts History Society, you will immerse yourself in the past and discover the fears, friction and turmoil that shaped the tumultuous times from 1774 through 1776.  Specifically, the website will 1) provide an easily understood chronology of key events leading up to the war; 2) present crucial documents relating to those events; 3) offer co
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Recovery and Reconstruction in Liberia
Steve Radelet (Chief Economist, USAID) and Carrie Hessler-Radelet (Deputy Director, Peace Corps) spoke about the challenges facing Liberia in rapidly invigorating the economy and public services after 14 years of civil war. Appropriate policy choices should be based on data, best practices from other countries (especially within the region), as well as local community meetings.
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9.7 Evaluating strategy and presenting outcomes

Evaluation should focus on both the outcomes of the work and the process. Two critical questions guide evaluation: ‘Did we accomplish our goals?’ and ‘Did we accomplish them in an effective and efficient way?’ Your evaluation should attempt to provide answers to both. Thus you need to know how to:

  • negotiate and develop effective ways of presenting the work by using the skills of the group members;

  • assess the effectiveness of t
    Author(s): The Open University

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Nouns in the Desert
Animals, plants, and scientists in the desert are presented in this segment that explores how nouns are used in written compositions. (04:07)

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