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Predict whether the nuclear isotopes below will be stable. If they are not stable, be sure to choose the correct decay mode.
A. Unstable, negatron decay
B. Unstable, positron or electron capture
C. Unstable, alpha decay
D. Stable
Radium-226Boron-8Phosphorous-32Carbon-13Nitrogen-14Carbon-12Thorium-230
What mass of ethylene glycol, when mixed with 225 g H2O, will reduce the equilibrium vapor pressure of H2O from 1.00 atm to 0.800 atm at 100 °C?
When 0.500 mol of N2O4 gas is placed in a 2.50 L reaction vessel and heated to a set temperature, 65.3% of the N2O4 decomposes. Calculate Kc for the decomposition rxn.
If you open the valve on the tank and release the helium into a room with a volume of 10,000 liters, what will happen to the "space" between the helium atoms? Clearly explain
15.0 moles of gas are in a 8.00 litre tank at temperature of 24.6 degree celsius . calculate the pressurenbsp
How is the mass in amu of one atom of an element related to the mass in grams of one mole of the element?
If the electrons after S_x measured are sent through a Stern - Gerlach analyzer to measure S_z(spin momentum along z-axis) again, what values will be found? with what probabilities will these values occur?
A pstient is administered mercury-197 to help evaluate kidney fuction. Mercury-197 has a half - life of 65 hours. what fraction of an initial of an initial does of mercury-197 remains after 6-0 days?
Identify R and R' in Equation 1 when the ester, aspirin, is made from salicylic acid and acetic acid. Calculate the theoretical yield of aspirin to be obtained in this experiment, strating with 2.0g of salicylic acid and 5.0mL of acetic anhydride
What is the heat produced (in kJ) by combustion of 1.00 mol of liquid methanol in the presence of oxygen
Are necessary to completely neutralize a solution in which 60.0g of NaOH have been dissolved
Why are chromatographic peaks broader than would be expected solely on the basis of the random nature of solute migration
What is the density of a block of marble that occupies 251cm^3 and has a mass of 623g?" answer in units g/cm^3
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