E. M. Eq. Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Law of Conservation of Mass | "Mass can neither be created nor destroyed, just changed (in form)."
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| Physical Change | changes affecting the form and physical characteristics of a substance
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| Chemical Change | changes affecting the chemical composition and/or chemical properties of a substance
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| Element | a pure substance and the simplest form of matter
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| Chemical Formula | a way of expressing information about the atoms the make up a particular chemical compound
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| Element Molecule | molecules made up of a single type of element
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| Diatomic Molecule | molecules made up of two of a single type of element
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| Compound Molecule | molecules made up of two or more kinds of elements
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| Chemical Equation | symbolic representation of a chemical reaction
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| Chemical Reaction | process leading to the transformation of one set of chemical substances to another
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| Reactants | substances involved in a chemical reaction as the substances going through the change
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| Products | substances involved in a chemical reaction as the substance formed by the change
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| Coefficient | number in front of a term in a chemical equation that indicates how many molecules take part in the reaction
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| Subscript | number below an atomic symbol that indicates how many atoms there are of an element in a molecule
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| Ionic Compound | chemical compound (molecule) in which ions are held together by ionic bonds
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| Covalent Compound | compound in which atoms share pairs of electrons
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| Metallic Compound | compound containing one or more transition elements
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| Synthesis | deliberate execution of chemical reactions to get one or more product(s)
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| Decomposition | separation of a chemical compound into elements or simpler compounds
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| Single Replacement | chemical reaction in which an element or ion moves out of one compound and into another
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| Double Replacement | chemical process involving exchange of bonds between two reacting chemical species
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