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General chemistry - Wikipedia


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Chemistry has its heroes, too! Nominate a team of industrial chemical scientists whose work has improved our lives. Deadline is March 1, 2018.

The blueprint of how ACS is making our Vision of “Improving people’s lives through the transforming power of chemistry,” a reality.

1155 Sixteenth Street, NW, Washington, DC 20036, USA, [email protected] , 1-800-333-9511 (US and Canada), 614-447-3776 (outside North America)

To get the best possible experience using our website, we recommend that you upgrade to latest version of this browser or install another web browser. See our Browser Support/Compatibility page for supported browsers list.

Chemistry has its heroes, too! Nominate a team of industrial chemical scientists whose work has improved our lives. Deadline is March 1, 2018.

The blueprint of how ACS is making our Vision of “Improving people’s lives through the transforming power of chemistry,” a reality.

1155 Sixteenth Street, NW, Washington, DC 20036, USA, [email protected] , 1-800-333-9511 (US and Canada), 614-447-3776 (outside North America)

General chemistry is the study of matter, energy and the interactions between them. This is an overview of General Chemistry topics, such as acids and bases, atomic structure, the periodic table, chemical bonds, and chemical reactions.

Acids, bases, and pH are concepts that apply to aqueous solutions (solutions in water). pH refers to the hydrogen ion concentration or the ability of a species to donate/accept protons or electrons. Acids and bases reflect the relative availability of hydrogen ions or proton/electron donors or acceptors. Acid-base reactions are extremely important in living cells and industrial processes. More »

Atoms are composed of protons, neutrons, and electrons. Protons and neutrons form the nucleus of the atom, with electrons moving around this core. The study of atomic structure involves understanding the composition of atoms, isotopes, and ions. More »

Electrochemistry primarily is concerned with oxidation-reduction reactions or redox reactions. These reactions produce ions and may be harnessed to produce electrodes and batteries. Electrochemistry is used to predict whether or not a reaction will occur and in which direction electrons will flow. More »

Chemistry is a science that relies on experimentation, which often involves taking measurements and performing calculations based on those measurements. This means it is important to be familiar with the units of measurement and ways of converting between different units. More »

Thermochemistry is the area of general chemistry that relates to thermodynamics. It is sometimes called Physical Chemistry. Thermochemistry involves the concepts of entropy, enthalpy, Gibbs free energy, standard state conditions, and energy diagrams. It also includes the study of temperature, calorimetry, endothermic reactions, and exothermic reactions. More »

Units : Matter · Atomic Structure · Bonding · Reactions · Solutions · Phases of Matter · Equilibria · Kinetics · Thermodynamics · The Elements

Appendices : Periodic Table · Units · Constants · Equations · Reduction Potentials · Elements and their Properties

As the result of many different scientists and experiments, several gas laws have been discovered. These laws relate the various state variables of a gas.

These gas laws can be used to compare two different gases, or determine the properties of a gas after one of its state variables have changed.

When Avogadro's Law is considered, all four state variables can be combined into one equation. Furthermore, the "constant" that is used in the above gas laws becomes the Universal Gas Constant (R).

The ideal gas law is the most useful law, and it should be memorized. If you know the ideal gas law, you do not need to know any other gas laws, for it is a combination of all the other laws. If you know any three of the four state variables of a gas, the unknown can be found with this law. If you have two gases with different state variables, they can be compared.

To get the best possible experience using our website, we recommend that you upgrade to latest version of this browser or install another web browser. See our Browser Support/Compatibility page for supported browsers list.

Chemistry has its heroes, too! Nominate a team of industrial chemical scientists whose work has improved our lives. Deadline is March 1, 2018.

The blueprint of how ACS is making our Vision of “Improving people’s lives through the transforming power of chemistry,” a reality.

1155 Sixteenth Street, NW, Washington, DC 20036, USA, [email protected] , 1-800-333-9511 (US and Canada), 614-447-3776 (outside North America)

General chemistry is the study of matter, energy and the interactions between them. This is an overview of General Chemistry topics, such as acids and bases, atomic structure, the periodic table, chemical bonds, and chemical reactions.

Acids, bases, and pH are concepts that apply to aqueous solutions (solutions in water). pH refers to the hydrogen ion concentration or the ability of a species to donate/accept protons or electrons. Acids and bases reflect the relative availability of hydrogen ions or proton/electron donors or acceptors. Acid-base reactions are extremely important in living cells and industrial processes. More »

Atoms are composed of protons, neutrons, and electrons. Protons and neutrons form the nucleus of the atom, with electrons moving around this core. The study of atomic structure involves understanding the composition of atoms, isotopes, and ions. More »

Electrochemistry primarily is concerned with oxidation-reduction reactions or redox reactions. These reactions produce ions and may be harnessed to produce electrodes and batteries. Electrochemistry is used to predict whether or not a reaction will occur and in which direction electrons will flow. More »

Chemistry is a science that relies on experimentation, which often involves taking measurements and performing calculations based on those measurements. This means it is important to be familiar with the units of measurement and ways of converting between different units. More »

Thermochemistry is the area of general chemistry that relates to thermodynamics. It is sometimes called Physical Chemistry. Thermochemistry involves the concepts of entropy, enthalpy, Gibbs free energy, standard state conditions, and energy diagrams. It also includes the study of temperature, calorimetry, endothermic reactions, and exothermic reactions. More »


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