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inter of matter

chemical reaction is the proccess in which atoms are rearranged to produce new substances
chemical formula use chemical symbols and numbers to represent a given substances
chemical equation is an expression that uses symbols to show the relationship between starting substances and the substances that are produced by a chemical reaction
reactant are the substances that participate in a chemical reaction. their chemical formulas are written on the left
producter are the substances formed in a reaction. Their chemical formulas are written on the right
law of conservation of mass States that matter is neither created nor destroyed in ordinary physical and created nor destroyed in ordinary physical and chemical changes
endothermic reaction chemicalreaction that requires energy input usually as heat
exothermic reaction a chemical reaction in which energy is relesed to the surroundings usally as heat
law of conservation of energey states that energy cannot be created or destroyed
Created by: aliciavazquez1