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Got a general chemistry question? Antoine may be able to help. First, check the archive of more than 400 previously answered questions- your answer may already be here.

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Introduction
Chemistry in perspective, the scientific method, on being a scientist, ...
Measurement
SI units, unit conversion, significant figures, ...
Matter
Properties, classification, separation of mixtures, ...
Atoms, elements, and ions
Dalton's atomic theory, isotopes, mass spectrometry, ...
Molecules and compounds
Chemical formulas, nomenclature, elemental analysis, ...
Reactions in solution
Equation balancing, classifying reactions, ...
Stoichiometry
Limiting reagents, percent yields, ...
Gases
Properties, empirical gas laws, kinetic-molecular theory, ...
Energy & chemical change
Heat, enthalpy, Hess's law, calorimetry, ...
Quantum theory
Electromagnetic radiation, wave/particle duality, photoelectric effect, ...
Electrons in atoms
Line spectra, quantum numbers, atomic orbitals, electron configurations,...
The periodic table
Periodic trends, element properties, ...
Chemical bonding
Ionic vs. covalent bonding, VSEPR, valence bond theory, molecular orbitals, ...
Solids
Types of solids, crystal systems, defects, ...
Liquids
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Solutions
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Acids and bases
pH, pKa, indicators, computing titration curves, ...
Redox reactions
Half reactions, electrochemistry, hydrogen peroxide reactions, titrations w/ starch and iodine, ...
Reaction rates
Reaction rates, mechanisms, catalysis, ...
Consumer chemistry
The chemistry of everyday things and products
Environmental chemistry
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Organic chemistry
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Inorganic chemistry
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Polymers
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Last Revised 02/15/10.URL: http://antoine.frostburg.edu/chem/senese/101/just-ask-antoine.shtml