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Chem Exam 2
Terms in this set (22)
Cl, Br, I mostly soluble except with
Ag, Cu, Hg2, Pb
SO4 mostly soluble except with
Ag, Hg2, Pb, Ca, Sr, Ba
When ionic compounds come apart in water, the process is called
Equation for energy for two substances
mCAT = -mCAT
Binding Energy; Mass defect Equation
Each part of E=MC2
E=J; M=kg; C=m/s
What happens to a neutron rich nuclei?
Beta Decay Equation
1/0n = 1/1p + 0/-1B
An electron is emitted from nucleus; simultaneously decrease the number of neutrons by one and increase the number of protons by 1
What happens to a neutron poor nuclei?
Electron Capture or Positron Emission
-Involves the capture of an electron in the lowest energy level in the atom by the nucleus.
-The process converts a proton in to a neutron
A positron has the mass of an electron but has a positive charge.
-Occurs when an unstable nucleus emits a positron
-The process converts a proton into a neutron.
What happens to a nuclei with an Atomic Number Greater than 83
occurs when an unstable nucleus emits an alpha particle.
An alpha particle is a helium nucleus, containing two protons and two neutrons
What happen to transuranium elements (Z>92)
The transuranium elements (Z>92) also decay by nuclear fission, in which the heavy nuclide splits into nuclides of intermediate mass and neutrons.
Half life equation
t 1/2 = ln2/k = 0.693/k
E = heat + work
E = Q + W
ΔH°run = enthalpy of individual products minus enthalpy of individual reactants
Wavelength x frequency = speed of light
Energy of light
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