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A position paper (sometimes position piece for brief items) is an essay that presents an arguable opinion about an issue – typically that of the author or some specified entity. Position papers are published in academia, in politics, in law and other domains. The goal of a position paper is to convince the audience that the opinion presented ...
The most fundamental concept in chemistry is the law of conservation of mass, which states that there is no detectable change in the quantity of matter during an ordinary chemical reaction. Modern physics shows that it is actually energy that is conserved, and that energy and mass are related; a concept which becomes important in nuclear chemistry.
Description: A classic general textbook for an undergraduate course in physical chemistry Importance: This book is not only a good introduction to the subject, it was very different from earlier texts and altered the way physical chemistry was taught. The first edition was very widely used where English is the language of instruction.
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
Articles start with a lead section (WP:CREATELEAD) summarising the most important points of the topic.The lead section is the first part of the article; it comes above the first header, and may contain a lead image which is representative of the topic, and/or an infobox that provides a few key facts, often statistical, such as dates and measurements.
$12.50 off each box of 10 filters or a new pitcher and pack of two filters. No more plastic bottles—say hello to Brita! Whether you’re stocking up on the 10-count box of filters or grabbing a ...
A 33-year-old man was charged Monday for allegedly setting on fire and killing a woman on a New York subway train in what authorities called a “brutal murder” and an example of “depraved ...
The Hawaiian monk seal is one of the world’s most endangered marine mammals. For more than six decades, the population has declined. And while recent numbers show a slight growth, they are not ...