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Chemical Reactions

Review of the parts of a chemical reaction

QuestionAnswer
starting material in a chemical reaction reactants
ending material in a chemical reaction products
speeds up chemical reactions catalyst
CxHy + O2 --> CO2 + H2O combustion reaction
AB --> A + B decomposition reaction
A + B --> AB synthesis reaction
AB + CD --> AD + CB double replacement reaction
AB + C --> CB + A single replacement reaction
numbers that are added to balance a chemical equation coefficients
numbers NEVER changed to balance a chemical equation subscripts
chemical equation that does not have equal # of atoms on both sides skeleton equation
chemical equation that does have equal # of atoms on both sides balanced equation
gas formed, transfer of energy, color change, precipitate forms clues of chemical change
means yields ; shows that chemical reaction is NOT reversible single arrow
Double replacement reactions happen this % of the time 100%
solid made from mixing liquids precipitate
means yields ; shows that chemical reaction goes in both direction double arrows
happens when products and reactants are formed at same rate equilibrium
law of conservation of mass states that mass is not created or destroyed in a chemical reaction
substances with pH range of 0 to 6 and release H+ ions acids
substances with pH range of 8 to 14 and release OH- ions bases
substances with pH of 7 neutral
properties of acids corrosive and sour
properties of bases slippery and bitter
only this can completely neutralize a strong base strong acid
Created by: cadetjt
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