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sei10.5

chemical reactions

QuestionAnswer
chemical equation a way to show a chemical reaction, using symbols instead of words.
law of conversation of mass states that during a chemical reaction, matter is not created or destroyed
open system matter can enter from or escape to the surroundings
closed system matter does not enter or leave (that occurs inside)
coefficient a number placed in front of a chemical formula in an equation
synthesis two or more elements or compounds combine to make a more complex substance
decompisition reaction occurs when compounds break down into simpler products
replacement when one element replaces another element in a compound , or if two elements in different compounds trade places
Created by: swoodard
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