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inter of matter
Term | Definition |
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chemical reaction | the process in which atoms are rearranged and chemical bonds are broken and formed to produce a chemical change of a substance. |
chemical formila | a combination of chemical symbols and number to represent a substance. |
chemical equation | a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the product. |
reactant | a substance that participa in a chemical reaction. |
product | a substance that forms in a chemical reaction. |
law of conservation of mass | the that states that mass cannot be created or destroyed in ordinary chemical and physical changes. |
endothermic reaction | a chemical reaction that requires energy input, usually as heat. |
exothermic reaction | a chemical reaction in which energy is released to the surrounding, usually as heat |
law of conservation of energy | the law that energy cannot be created or destroyed but can be changed from one to another. |