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science vocab(kiara)

QuestionAnswer
Law of Consrevation Mass Mass of products equals the mass of the reactants
physical change changes in state or phase
Chemical Change Produces a new substance
Element Cannot be broken down any more
Chemical formula a representation of a substance using symbols for its constituent elements
Chemical Equation a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product
Chemical Reaction a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei
Reactants A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction
Products The compounds that are formed when a reaction goes to completion
coefficient is a number placed in front of a term in a chemical equation to indicate how many molecules (or atoms) take part in the reaction
Subscript A subscript in chemistry is used to tell the reader how many of that element there are in a certain compound
Created by: s1109590
 

 



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