Chemistry Help & Reviews

Here you can find study materials for chemistry help. Browse the links below to find the area of chemistry you're looking for help with. Each study guide comes complete with explanations and practice problems to help you learn chemistry.

Study Guides

showing 1 - 10 of 79
  • 1.

    Scientific Method and Chemistry Help

    Introduction to Scientific Method Long ago, the first humans stood upright, used tools, and discovered that lightning produced fire. They found that the differences between medicinal extracts and plant toxins were slim and sometimes had very different effects. ...

    Source: McGraw-Hill Professional
  • 2.

    Data and How to Study It Help

    Experimental Science Chemistry is an experimental science. It is divided into two branches, pure chemistry and applied chemistry . Pure chemistry is theoretical and predicts results of experiments or observations. Applied chemistry ...

    Source: McGraw-Hill Professional
  • 3.

    Properties of Matter Help

    Matter Chemistry is defined as the study of matter and the way it reacts in different situations. But, what is matter? At first, people thought matter only included things that could be seen and measured, like ...

    Source: McGraw-Hill Professional
  • 4.

    Chemical Nomenclature, Elements and Symbols Help

    Chemical Nomenclature Before standard element symbols and the Periodic Table were invented, discussing matter was a guessing game. Early scientists located in laboratories far distant from each other and speaking different languages had ...

    Source: McGraw-Hill Professional
  • 5.

    Electrons, Nucleus, and Atomic Structure Help

    Electrons In 1897, J.J. Thomson, a physicist from England, discovered negatively charged particles by removing all the air from a glass tube that was connected to two electrodes. One electrode was attached to one end of the tube and negatively ...

    Source: McGraw-Hill Professional
  • 6.

    Electron Configurations Help

    Introduction to Electron Configurations Electrons play a big role in the way the entire atom gets along with its friends, family, and neighbors. They don’t stick together on a whim. Usually, atoms of an element will only combine with ...

    Source: McGraw-Hill Professional
  • 7.

    Concentration and Molarity Help

    Introduction to Concentration and Molarity In the laboratory, chemists must make use of what they have on hand. It would be a waste of time to run out and buy 20 different concentrations of hydrochloric acid, for example, when they could ...

    Source: McGraw-Hill Professional
  • 8.

    The Hydrogen Atom Help

    Introduction to the Hydrogen Atom What is hydrogen anyway? We hear so much about this element. It may seem, at times, that it is a part of nearly every compound. The hydrogen atom is a major player ...

    Source: McGraw-Hill Professional
  • 9.

    Atomic Number and Ions Help

    Introduction to Atomic Number and Ions To understand chemistry and chemical reactions, you have to understand the very basic building blocks of the elements. The protons, neutrons, and electrons are all pretty standard stuff by now. But there ...

    Source: McGraw-Hill Professional
  • 10.

    Radiochemistry Help

    Introduction to Radiochemistry The nucleus of an element contains protons and neutrons. We have already learned that an element’s identity and atomic number is found from the number of protons in a nucleus. However, around 1912, ...

    Source: McGraw-Hill Professional

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