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Synthesis
a chemical process in which two or more simple elements or compounds combine to form a more complex product. (A + B —> AB)
Decompostion
when one reactant breaks down into 2 or more products. (AB —> A + B)
Single Replacment
is a reaction in which one element replaces a similar element in a compound. (A+BC→AC+B)
Double replacemnt
occur when parts of two ionic compounds are exchanged, making two new compounds. (AB + DC —> AC + DB)
is this endothermic or exothermic
endothermic
Is this endothermic or exothermic
exothermic
what is the heat content of the system represented by
ΔH (delta H)
exothermic reactions will have what type of value
negative value
endothermic reactions will have what type of value
positive value
what do the signs indicate
flow of direction
Enthalpy
The energy stored in a chemical system
Exothermic
Reactions that emit energy, temp increases the enthalpy decreases
Endothermic
more energy is absorbed, temp decreases enthalpy increases
if the energy is in the reactant side it is…
endothermic
if the energy is in the product side it is…
exothermic
if the energy in the delta H notation is negative you place it where
you place it on te products side but it is positive
if the energy in the delta H notation is postive you place it were
you place it on the reactant side with the positive sign
where is the activation complex located
at the highest point of the graph
where are the reatants on the graph
the far left
where are the products on the graph
the far right
how do you find the activation energy
reactants - activation complex
what is enthalpy change
subtract the enthalpy of the reactants from the enthalpy of the products.
more collsion = ?
faster reaction
how can we increase the rate of a reaction
stir it
adding energy
increase concentration
for gasses, increase the pressure
Note
Flashcard