chapter 9 Flashcards
Identify the category of the following reaction
4HNO3 —- 4NO2+2H2O+O2
decomposition reaction
exothermic
heat is released
endothermic
heat is needed
What are the three factors necessary for a chemical reaction to occur?
Molecular collisions, low activation energy, and proper orientation of particles
major types of chemical reactions
- Combination
– Decomposition
– Displacement
– Exchange
– Combustion - Chemical Reaction
what is a chemical reaction
Process in which at least one new substance is produced as a result of chemical change.
what is a decomposition reaction
Chemical reaction in which a single reactant is converted into two (or more) simpler substances (elements or compounds)
example: XY → X + Y
example: 2CuO → 2Cu + O
chemical equilibrium
The state in which forward and reverse chemical reactions occur simultaneously at the same rate
reversable chemical reaction
all reactions are reversable.
equilibrium =
balance
equilibrium constant
A numerical value that characterizes the concentrations of reactants and products in a system at chemical equilibrium
Arrhenius acid:
hydrogen containing compound
conjugate base
proton donor
conjugate acid
proton accepter
hydrogen acid:
chloride
