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34 Cards in this Set

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reactant
a substance that undergoes a chemical change
product
a substance that is the result of a chemical change
chemical energy
energy stored within atoms and molecules that can be released when a substance reacts
exothermic reaction
a reaction that transfers energy from the reactants to the surroundings as heat
endothermic reaction
a reaction in which energy is transferred to the reactants as heat from the surroundings
synthesis reaction
2 substances form a new more complex compound
decomposition reaction
reaction breaking one compound into two other compounds
electrolysis
the decomposition of a compound by an electric current
combustion reaction
a compound and oxygen burn
single-displacement reaction
atoms of one element take te place of atoms of another element in a compound
double- displacement
a gas, solid precipitate, or a molecular compound is formed from the apparent exchange of ions between two compounds
redox reaction
electrons are transferred from one reactant to another
radicals
fragments of molecules that have atleast one electron available for bonding
catalyst
substance that changes the rate of chemical reactions without being consumed
enzyme
a protein that speeds up a specific biochemical reaction
equilibrium
chemical reaction and its reverse order occur at the same time and same rate
suspension
looks as one when mixed
colloid
small particles of pure substances that are put together but do not settle out of the substance
emulsion
immisicble liquids when liquids get spread throughout eachother
solution
homogeneous mixture two or more substances uniformly spread througout a single phase
solute
dissolves in a solution
solvent
dissolves a solute to make a solution
concentration
how much solute is dissolved
unsaturated solution
able to dissolve more solute
saturated solutoin
a solution that cant dissolve any more solute at the given conditions
solubility
the greatest amount of a solute that will dissolves in a given amount of solvent to produce a saturated solution
supersaturated solution
a solution holding more dissolved solute thn is specified by its solubility ar a given temp.
molarity
a concentration unit of a solution that express moles of solute dissolved per liter of solution.
acid
a substance that donates when dissolved in water.
indicator
a compound that can reversibly change color in a solution.
base
a substance that reacts with water to form hydroxie ions.
pH
a measure of the hydronium ion concentration in a solution.
nuetralization reaction
a reaction whwere hydronium ions form an acid and hydroxide ions form a base react to produce water molecules.
soap, detergent, disinfectant, bleach, and an antacid are all ___??
acids and bases