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B
C
E
R
P
S
O
N
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B
The process of ensuring that the number of atoms of each element is the same on both sides of a chemical equation.
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C
Numbers placed in front of chemical formulas to balance the equation.
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E
Representations of chemical reactions using chemical formulas and symbols.
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R
Substances present at the beginning of a chemical reaction.
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P
Substances formed as a result of a chemical reaction.
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S
Representations used in chemical equations to indicate elements and compounds.
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O
An essential element in many chemical reactions, often present as O2 or in compounds.
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N
A common element in chemical reactions, found in compounds like ammonia (NH3) and nitrogen gas (N2).