The Handy Chemistry Answer Book by Justin P. Lomont, Ian C. Stewart

By Justin P. Lomont, Ian C. Stewart

Simplifying the complicated chemical reactions that occur in daily in the course of the well-stated solutions for greater than six hundred universal chemistry questions, this reference is the go-to advisor for college students and pros alike. The publication covers every little thing from the background, significant personalities, and groundbreaking reactions and equations in chemistry to laboratory concepts all through background and the most recent advancements within the box. Chemistry is a necessary point of all lifestyles that connects with and affects all branches of technological know-how, making this readable source valuable throughout various disciplines whereas closing obtainable at any point of chemistry history. From the hunt to make gold and early types of the atom to sunlight cells, bio-based fuels, and eco-friendly chemistry and sustainability, chemistry is frequently on the vanguard of technological switch and this reference breaks down the necessities into an simply understood format.

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The Handy Chemistry Answer Book

Simplifying the complicated chemical reactions that happen in daily during the well-stated solutions for greater than six hundred universal chemistry questions, this reference is the go-to consultant for college kids and pros alike. The booklet covers every thing from the background, significant personalities, and groundbreaking reactions and equations in chemistry to laboratory recommendations all through background and the newest advancements within the box.

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Example text

Airplanes are very heavy, so the force required to balance gravity and keep them in the air must be large. The engines propel the airplane forward, but we need to understand what gives the upward push, or lift, necessary to keep the plane in the air. This lift comes from the shape of the wings, which are typically curved on the top and flat on the bottom. This design requires air to flow more rapidly over the top of the wings than over the bottom, which creates a lower air pressure above the wing than below.

Metals are often good conductors of An explosion is a dramatic example of a chemical reaction we can see with our naked eyes. Handy Chemistry 7/8/13 2:44 PM Page 43 What makes a rubber band stretchy? Rubber bands are made of long polymer molecules. These are all tangled together, and you could think of them as being similar to a bunch of interwoven springs. The polymers can be stretched to a more extended state, which is what allows a rubber band to stretch without breaking. More accessible configurations exist, however, when they are in a more contracted state, which means that the more contracted states have higher entropy (see “Physical and Theoretical Chemistry”) and for this reason are more favorable.

If the spin magnetic moments are oriented randomly, the object won’t be magnetic. The trick is that only certain materials have the potential to exhibit magnetism, and we’ll get to that next. What determines which metals can be magnetized? Chemists discuss magnetism in terms of three basic categories: diamagnetism, paramagnetism, and ferromagnetism. Diamagnetic materials have all of their electrons arranged in pairs, which, by definition, means that their spin magnetic moments must all be arranged in pairs and thus cancel each other out.

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