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Vocabulary
Chemical Reactions
Balancing Equations
Parts of a Chemical Reaction
Energy and Chemical Reactions
100
This is the energy associated with starting a chemical reaction
What is activation energy?
100
This is what happens to the reaction rate when the concentration or temperature is increased
What is it increases?
100
H2 + Cl2 → HCl
What is H2 + Cl2 --> 2HCl?
100
This is when forward reaction rate = reverse reaction rate
What is equilibrium?
100
This type of reaction releases energy
What is endothermic reaction?
200
This is what produces new substances by rearranging atoms
What is a chemical reaction?
200
This is the type of reaction when something is burning
What is combustion?
200
H2 + O2 --> H2O
What is 2H2 + O2 --> 2H2O?
200
These are the starting materials of a chemical reaction
What are reactants?
200
This is the SI unit for energy
What is joule?
300
This states that in a chemical reaction, atoms are neither nor destroyed
What is the law of conservation of mass?
300
This is the type of reaction when a complex substance breaks up into simpler substances
What is decomposition?
300
C2H6 + O2 ---> CO2 + H2O
What is2C2H6 + 7O2 ---> 4CO2 + 6H2O?
300
These are the ending materials of a chemical reaction
What are products?
300
This type of reaction absorbs energy
What is endothermic?
400
This is a solid product that is produced when two liquids come together
What is a precipitate?
400
This is the type of reaction where simpler substances come together to make more complex substances
What is synthesis?
400
Na + O2 --> Na2O
What is 4Na + O2 --> 2Na2O?
400
This is a substance that makes chemical reactions happen faster without being used up
What is a catalyst?
400
This law states that energy can neither be created nor destroyed in a chemical reaction
What is the law of conservation of energy?
500
This indicates how many atoms or molecules there are in a chemical reaction
What is a coefficient?
500
The type of chemical reaction below: Cu + AgNO3 ---> CuNO3 + Ag
What is single replacement?
500
KFe3AlSi3O10(OH)2 + Cu + O2 + H2S ---> KAlSi3O8 + CuFeS2 + H2O
What is KFe3AlSi3O10(OH)2 + 3Cu + (3/2)O2 + 6H2S ---> KAlSi3O8 + 3CuFeS2 + 7H2O?
500
When balanced, how many Sulfur atoms are any one side of the following equation: Sb2S3 + O2 --> Sb2O3 + SO2
What is 6?
500
These are the four things that affect chemical reaction rate
What are temperature, concentration, surface area, and catalyst