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L6

Chemical Reactions terms

TermDefinition
chemical Reaction a representation of a chemical reaction.
skeletal Equation a chemical equation that doesn't indicate the relative amounts of the reactants and products.
catalyst a substance that speeds up the reaction but is not used in the reaction
coeffecients small whole numbers that are placed in front of the formulas in an equation in order to balance it
balanced equation each side of the equation has the same number of atoms of each element and mass is conserved
combination reaction a chemical change in which two or more substances react to form a single new substance
decomposition reaction a chemical change in which a single compound breaks down into two or more simpler products
Single replacement reaction is a chemical change in which one element replaces a second element in a compound
activity series of metals lists metals in order of decreasing reactivity
double-replacement reaction a chemical change involving an exchange of positive ions between two compounds
combustion reaction a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light
complete ionic equation an equation that shows dissolved ionic compounds as dissociated free ions
net ionic equation an equation for a reaction in a solution that shows only those particles that are directly involved in the chemical charge
spectator ion an ion that appears on both sides of an equation and is not directly involved in the reaction
Aqueous solution a substance dissolved in water
The law of conservation of mass In any chemical change, mass is conserved.
Precipitate mixing of two ionic compounds can sometimes result in the foundation of an insoluble salt called this
(s) solid
(l) liquid
(g) gas
(aq) a substance in aqueous solution
Created by: TJ365