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Elemental Vocab

QuestionAnswer
Law of Conservation of Mass Matter cannot be created or destroyed.
Physical Change Physical change rearranges molecules but doesn't affect their internal structures.
Chemical Change Chemical change is any change that results in the formation of new chemical substances.
Element A chemical element is a substance that cannot be broken down by chemical means.
Chemical Formula A combination of symbols used to express the chemical composition of a substance.
Element Molecule A molecule made up of two or more atoms of the same element.
Compound Molecule A molecule made up of two or more atoms of different elements.
Chemical Reaction A reaction that happens when two or more molecules interact and the molecules change.
Reactants The elements and molecules that go into a chemical equation.
Products The result of a chemical equation.
Coefficient The number in front of the chemical formula. It represents the number of molecules.
Subscript A subscript is a number written to the right of a chemical symbol and slightly below it. It tells how many atoms of that element are in the compound.
Ionic Compound Ionic compounds are compounds where two or more ions are held next to each other by electrical attraction.
Convalent Compound A covalent compound is a compound in which the atoms that are bonded share electrons rather than transfer electrons from one to the other.
Metallic Compound A metallic compound is a compound that contains one or more metal elements.
Synthesis The formation of a compound from simpler compounds or elements.
Decomposition Disintegration of a nucleus that occurs spontaneously or as a result of electron capture.
Single Replacement Single replacement is when one element replaces another element in a compound.
Double Replacement During double replacement, the cations and anions of two different compounds switch places.
Created by: r0706848
 

 



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