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Unit 5: Chemical Reactions 

 

Balanced Chemical Equation- having the same number of elements are both sides

 

Coefficients- the large numbers before the elements (helps balance)

 

Products- what comes after the arrow 

 

Reactants- what comes before the arrow

Reactions- is a process when substances change into something new

 

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                         Counting Atoms

 

 

Balancing Chemical Equations 

4 Indicators that a Chemical Reaction has occurred 

         * Gas- ex: bubbles 

         * Color Change- ex: 2 clear liquids mixed together to make a pink liquid 

         * Temperture Change- ex: mixing 2 room temp. items to make a hot item 

         * Precipitates- ex: particles 

 

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