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Science Chapter 5
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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
The 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 surrounding as heat
temperature rises
Endothermic Reaction
A reaction in which energy is transferred to the reactants as heat from the surroundings
temperature decreases
Synthesis Reaction
A reaction of at least two substances that forms a new, more complex compound
Decomposition
A reaction in which one compound breaks into at least two products
Electrolysis
the decomposition of a compound by an electric current
Combustion Reaction
A reaction in which a compound and oxygen burn
Single-displacement reaction
a reaction in which atoms of one element take the place of atoms of another element in a compound
Double-displacement reaction
A reaction in which a gas, a solid precipitate, or a molecular compound is formed from the apparent exchange of ions between two compounds
Reduction/oxidation (redox) reaction
A reaction that occurs when electrons are transferred from one reactant to another
Radicals
the fragments of molecules that have at least one electron available for bonding
Chemical Equation
An equation that uses chemical formulas and symbols to show the reactants and products in a chemical reaction
Mole Ratio
the smallest relative number of moles of the substances involved in a reaction
Catalyst
a substance that changes the rate of chemical reactions without being consumed
Enzyme
a protein that speeds up a specific biochemical reaction
Substrate
the specific substance affected by an enzyme
Equilibrium
the state in which a chemical reaction and its reverse occur at the same time and at the same rate
Author
craziibabe47
ID
2764
Card Set
Science Chapter 5
Description
Chapter 5
Updated
2009-12-16T22:34:24Z
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