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Q2W7CHEM

BALANCING CHEMICAL EQUATIONS

QuestionAnswer
Subscript small number written to the right of an element; tells you how many atoms of that element you have. Chemical reaction
Law of conservation of matter says that matter cannot be created or destroyed.
Reactants substances used up in a chemical reaction.
Products new substances made in a chemical reaction.
Coefficient large number placed before a molecule in a chemical reaction; this number “multiplies each element in that formula”
Chemical formula identifies each element by its chemical symbol and indicates the number of atoms of each element found in each discrete molecule of that compound.
Subscript small number written to the right and below the chemical symbol if a molecule contains more than one atom of a particular element.
Combustion burning; a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light.
Balanced equation the law of conservation of matter demands that we have the same numbers of each element’s atoms on both sides of the equation.
Created by: Ruth.Miller on 2011-08-15



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