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L6
Chemical Reactions terms
Term | Definition |
---|---|
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 |