write the necessary conditions characteristics by which any chemical reaction can be identified
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Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change
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Surface Area. The rate of chemical reaction is slow if the surface area of the reactants is small as there is less chance to contact between the reactants. ...
Catalyst. A catalyst is a substance that changes the speed of a chemical reaction without undergoing any changes.
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