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Science 7 6-1/2
Science 7 6-1
Question | Answer |
---|---|
physical change | observed without changing the substance into another substance |
chemical change | ability to change into another substance |
reactant | substances at beginning (left side of equation) |
product | new substances (right side of equation) |
precipitate | solid that forms from solution during chemical reaction |
endothermic reaction | energy absorbed |
exothermic reaction | energy released |
coefficient | number in front of chemical equation, tells you how many atoms/molecules there are |
synthesis | put together, make more complex substance |
decomposition | break down into simpler products |
replacement | two elements in different compounds trade places |