Chemical reaction
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 | states that matter cannot be created or destroyed during a chemical reaction. The mass of the reactants is equal to the mass of the products.
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| Chemical reaction | occurs when the original substance changes form into a new substance. May include bubbles, smoke, a strong smell, color change, temperature change, or a sizzling sound.
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| Chemical equation | A written representation of a chemical reaction, in which the symbols and amounts of the reactants are separated from those of the products by an equal sign, arrow, or a set of opposing arrows.
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| coefficient | The number in front of an element in a chemical equation.
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| subscript | used in chemical formulas to indicate the number of atoms of each type in the compound.
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| Reactant | a substance that participates in a chemical reaction. a substance that is present at the start of the reaction.
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| Product | a substance that is formed as the result of a chemical reaction.
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Created by:
meekinsscience
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