A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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a branch of chemistry that deals with organic molecules, i.e. (most) carbon compounds.
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part of your homework, please use this tag. It signifies that instead of a direct answer, care should be taken to explaining the steps to the solution, preferably sticking to just …
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The study of chemical systems using the laws and concepts of physics. This usually requires the techniques of thermodynamics, statistical mechanics and quantum mechanics.
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The branch of chemistry concerned with the properties and behaviour of inorganic compounds.
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Applications of chemistry to reagents and reactions of everyday life.
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either a proton donor, or an electron-pair acceptor. A base is either a proton acceptor, or an electron-pair donor. In aqueous solution, acids have a pH less than 7 and bases have a pH grea…
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Questions relating to heat and its relation to other forms of energy in chemistry.
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The step by step sequence of elementary reactions by which overall chemical change occurs.
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The branch of chemistry that deals with the study of redox reactions and how they can be applied to generate electricity (in electrochemical cells) and to carry out non-spontaneous reactions using ele…
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The state in which both reactants and products are present at concentrations which have no further tendency to change with time.
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The scientific study of chemical processes in living organisms, including, but not limited to, living matter.
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an interaction between atoms which results in release of energy. It is one of the most fundamental concepts of chemistry. Existing bonds are broken and new bonds are formed in chemi…
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For questions relating to water (H2O), specifically its structure, properties, and uses in chemistry.
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Reduction-oxidation reactions: all chemical reactions in which atoms have their oxidation state changed.
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an electrically neutral group of two or more atoms held together by covalent chemical bonds
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An atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.An ion consisting of a single atom is an …
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The purposeful execution of chemical reactions to obtain a desired product.
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For questions relating to compounds dissolved in water and resulting reactions.
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The use of computers to model and study chemical systems. This usually consists of trying to approximately solve the Schrodinger equation for a molecule or solid.
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For questions relating to energy required for or produced by reactions, including questions of endothermicity/exothermicity, bond enthalpy, etc.
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A small-scale experiment which can be undertaken with reagents readily available around the house, while observing standard laboratory safety principles and practices
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The study of rates of chemical processes.
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For questions related to the solubility of compounds in various solvents, especially in water.
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In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.
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A basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.
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a subatomic particle with a negative elementary electric charge.
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The naming of molecules and elements, usually according to IUPAC standards, but also the accepted uses of traditional ones.
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A measure of the acidity or basicity of an aqueous solution.
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the discipline of physics that focuses on physical phenomenon that occur at an atomic or sub-atomic scale. In particular quantum mechanics attempts to describe the interaction of …
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Questions about chemical safety, including questions about proper lab procedure, safe chemical handling, and chemical storage.
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an element, compound, or alloy that is a good conductor of both electricity and heat.
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The branch of chemistry concerned with identifying and quantifying the chemical constituents of matter.
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For questions relating to the theory, design or performance of chemical experiments, including theoretical structures, expected products, thermal calculations, and empirical analysis.
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A special class of compounds in which a electron deficient central atom (usually a metal ion) is bonded to many electron donors called ligands. These compounds are highly stable and are widely found i…
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Physical and chemical laws describing the properties and behavior of gases.