Name: _______________________________________ Date: __________________ Pd.
Chapter 7 Key Terms - Fill in the blank with the correct key term
reactant
product
Decomposition
reaction
oxidationreduction reaction
Synthesis
reaction
free radical
chemical
equilibrium
endothermic
reaction
Single
displacement rx
exothermic
reaction
Double
displacement rx
mole ratio
catalyst
substrate
chemical energy
Combustion
reaction
chemical
equation
enzyme
Section 7.1 Nature of Chemical Reactions(Rx)
1.
2.
3.
4.
5.
__________________ a substance or molecule that participates in a chemical reaction
__________________ chemical reaction in which energy is absorbed
__________________ chemical reaction in which energy is released
__________________ the substance that forms in a chemical reaction
__________________ the energy released when a chemical compound reacts to
produce new compounds
Section 7.3 Reaction Types
6. __________________ a reaction in which two or more substances combine to form a
new compound; A + B -> AB
7. __________________ type of reaction a single compound breaks down to from two or
more simpler substances; AB -> A + B
8. __________________ a reaction in which one element or radical takes the place or
another element or radical in a compound; AB + C -> AC + B
9. __________________ a reaction in which a gas, a solid precipitate, or a molecule
compound forms from the apparent exchange of atoms or ions between two
compounds; AB + CD -> AD + CB
10. __________________ any chemical change in which one substance is oxidized(loses)
and one substance is reduced(gains), also called redox reaction; Rust Fe loses and O
gains, any Ionic bond results from losing and gaining of electrons
11. __________________ the rapid oxidation reaction of an organic compound, in which
heat is released; oxygen is needed for fire
12. __________________ an atom or group of atoms that has one unpaired electron; forms
covalent bonds
Section 7.2 Chemical Equations
13. __________________ the relative number of moles of the substance required to
produced a given amount of product in a chemical reaction
14. __________________ a representation of a chemical reaction that uses symbols to
show the relationships between the reactants and the products
Section 7.4 Reaction Rates and Equilibrium
15. __________________ a substance that changes the rate of a chemical reaction without
being consumed or changed significantly; usually speeds up the rate
16. __________________ a molecule, usually a protein, that acts as a biological catalyst
17. __________________ the reactant (substance changed) in chemical reactions catalyzed
by enzymes
18. __________________ state of balance in which the rate of the forward reaction
balances the rate of the reverse reaction; uses a  symbol
Name the 7 Diatomic Molecules (Magic Seven) symbol with subscript