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Chemistry: What's Hot Now: Iron Facts Quiz - Multiple Choice Quiz about the Element Iron

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Iron Facts Quiz - Multiple Choice Quiz about the Element Iron Aug 26th 2011, 10:02 Iron Facts Quiz Multiple Choice Quiz about the Element Iron How much do you know about the element helium? Here's a ten question quiz you can take to test your knowledge of helium facts. Before starting, you may wish to review some Iron Facts or 10 Quick Iron Facts. Start this quiz again. More Chemistry Quizzes Carbon Facts Quiz Element Word Search Element Word Search Element Atomic Number Quiz First 20 Element Symbols Quiz Which Element Are You?

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Chemistry: What's Hot Now: Lanthanides

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Lanthanides Aug 26th 2011, 10:02 Here's a list of elements that are lanthanides, a subset of the rare earth group of elements. Lanthanum (sometimes considered a transition metal) Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium

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Chemistry: What's Hot Now: Hess's Law Definition

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Hess's Law Definition Aug 26th 2011, 10:02 Definition: Law which states that the energy change in an overall chemical reaction is equal to the sum of the energy changes in the individual reactions comprising it. Return to the Chemistry Glossary Index A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Chemistry: This Day in Science History - August 26 - Antoine Lavoisier

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This Day in Science History - August 26 - Antoine Lavoisier Aug 25th 2011, 22:05 August 26th is Antoine-Laurent Lavoisier's birthday. Lavoisier is sometimes referred to as the Father of Modern Chemistry. He was one of the driving forces in science that took chemistry out of the hands of alchemists and into scientific research and discipline. He introduced the Metric System as a standard of measurements. Lavoisier was also involved in politics. One of his roles in France was a tax collector. He also took a stand to defend foreign born scientists from a mandate to forfeit their freedom and possessions. Both of these were not looked kindly upon by the new post-Revolution government and he was branded a traitor. He was tried, convicted and guillotined all on the same day. Citing Lavoisier's contribution to French science, clemency was asked for, but the judge responded, "The Republic needs neither scientists nor chemists; the course of justice can not be delayed." He was later exonerated of the charge and honored for his achievements. Find out what else occurred on this day in science history. Follow Chemistry on Facebook or Twitter. Follow Chemistry on Facebook or Twitter.

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Chemistry: Units of Measurement Quiz

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Units of Measurement Quiz Aug 25th 2011, 08:25 If you are familiar with scientific units then this quiz shouldn't be difficult. The trick will be answering all of the questions correctly rather than just most of them. I usually manage to confuse myself with the electrical units. Are you up for the challenge? Here you go...

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