Chemical Reactions

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Atom

Back

A tiny particle that makes up substances.

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Molecule

Back

A substance made up of more than one atom joined together.

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Chemical Reaction

Back

When the atoms of two or more substance are regrouped together, resulting in a new substance(s) being formed.

Front

Evidence of Chemical Reaction

1

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The atoms of two or more substances are regrouped together.

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Evidence of Chemical Reaction

2

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A new substance(s) is formed.

Front

Evidence of Chemical Reaction

3

Back

The new substance(s) that formed have different properties than the substances before the reaction.

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Reactants

Back

The substances mixed together before the chemical reaction.

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Product(s)

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The substance(s) formed as a result of the chemical reaction.

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Chemical Formula

Back

Lists the symbols (letters) and quantities (numbers) of each atom in a molecule.

Front

Chemical Formula

(Large Number Before)

Back

Represents the number of molecules.