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vocab Chem reaction

vocabulary Words Chemical Reactions

Chemical reaction When atoms of elements break apart and rearrange to become new substances
Synthesis Reaction (Magnesium combines with oxygen to make magnesium oxide) When two or more substances combine to create one new compound
Decomposition Reaction (Sugar breaks down into hydrogen, oxygen, and carbon) A reaction where a single compound breaks down to form 2 simpler substances
Single-displacement Reaction (Sodium replaces hydrogen in water) One element replaces another element in compound leaving a new compound and one element
Double Displacement Reaction The 2 metal ions in 2 compounds switch places in chemical reactions
Law of Conservation Mass States that mass is neither created nor destroyed in a chemical reaction
Chemical Formula A shorthand way to use chemical symbols and numbers to represent a substance (H2O)
Chemical Equation Uses symbols to show the relationship between the reactants and the products (C+O2= CO2)
Subscript (H2O)-Small number to the right of the element that shows how many atoms there are of the element
Coefficient The large number that multiplies atoms of the element (2Cl+3Na)
Reactant A substance or molecule that starts a chemical reaction (Mg+O2)
Product The substance that forms as a result of a chemical reaction (MgO2)
Created by: 15wilhelmjac



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