Chemistry For Dummies, 2nd Edition

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To learn and remember the concepts, write them by hand. According to studies, you’re more likely to rememberthe notes when you write by hand.

Teacher: Yes. So, a molecule is a word we use to represent the simplest unit of some compounds. These little red blobs represent the oxygen atoms. And then the two white circles, they represent the two hydrogen atoms that are chemically bonded together.complexity in the world. If you look at the world around us, and it doesn't even have to be our planet, it could be the universe around us, you see all these different substances that seem to be different in certain ways. You see things like Chemical Formulas: Atoms and ions don't bond together randomly. Find out how to predict how many of one type of atom or ion will combine with others. Learn to name compounds.

themselves are made of things like protons and electrons and neutrons that are just rearranged in different ways to give us these elements that have all of theseIf you need help understanding the most difficult chemistry concepts that will be encountered in college or high school level chemistry, this book is for you. Some of the topics you will learn in this book are solubility, chemical reactions, bonding, unit conversions, and the mole. Try to understand the atomic structure, chemical nomenclature, and metric system. If you do not completely understand these basic concepts before learning advanced concepts, you will find chemistry hard to learn. Presenter: OK, let's make sense of all this with Mrs Roberts. Are elements made up of a mixture of different types of atoms?

Chemical Reactions & Equations: Just as atoms and ions combine in very specific ways, molecules and compounds react with each other in definite quantities. Learn how to tell whether or not a reaction can occur and what the products of a reaction will be. Write balanced chemical equations to describe reactions.

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