heat/energy in rxns Flashcards
energy is involved in 2 ways
two break & to form bonds
photosynthesis is an example of
endothermic rxn
activation energy
energy needed to begin and break chemical bonds in reactants
dissolution reaction
ionic compound dissolves in water
to make an ionic solution.
A balanced chemical
equation shows the
ratios of the number
of molecules of
reactants using
coefficients
The reactant that is used up first in a
chemical reaction is called
the limiting reactant
A reactant that is not completely
used up is called an
excess reactant
affects how much product in produced
expieremental error
percent yield
actual yield
—————– X100
predicted yield
kinetic theory
In all phases of matter, atoms and
molecules exhibit random motion.
the change in
concentration of reactants
reaction rate
catalyst
speeds up a rxn
an unstable
radioactive isotope
radioactive decay
nuclear fusion
process of
combining the nuclei of lighter atoms
to make heavier atoms.
nucluear fussion occurs in
the sun
