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1. What orbits the nucleus of an atom?
2. At room temperature, what is the only metal that is in liquid form?
3. True or false? A neutron has no net electric charge.
4. A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion?
A room contains 46 of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 9 to 30? The heat capacity of air is 1.03.
The heat of vaporization (delta)Hvap of carbon tetrachloride (CCl4) at 25 degrees C, is 39.4 kj/mol. If 1 mol of liquid carbon tetrachloride at 25 degrees C has an entropy of 216 J/K, what is the entropy of 1 mol of vapor in equilibrium with the l..
despite the fact that almost all physicians no longer recommend that children not be given aspirin because of fears of
What masses (in kilograms) of aluminum oxide and sulfuric acid must be used to manufacture 1.00 kg of aluminum sulfate? Assume 100% yield on aluminum sulfate
What is the difference between a one dimensional array and a two dimensional array, how would you call a specific point in the array for each?
Compute the radiation dosage (in grays) for an 81 kg person that is exposed for 6.0 seconds to a 3.0 Ci source of beta radiation. Presume that 100% of the radiation is absorbed and each beta particle has an energy of 1.1*10^-13J.
Which of the subsequent would an acidic solution when they react with water? Define which would give a basic solution? (a)P4O10, (b) K2O, (c)SeO3, (d) Cl2O7
Problem- What is the pH change of a 0.260M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130M with no change in volume
Problem- A researcher mixed 8.00mL of 1.33x10-1M Fe(NO3)3 with 102.0mL of 2.45x10-3 M KSCN, using 5.00x10-1M HNO3 as solvent for both solutions. The resulting measured absorbance for the solution was 0.348. Based on the given data, calculate [SCN*..
This experiment calls for the use of 2mL of 2-chloro-2methylpropane. The molar mass of 2-chloro-2methylpropane is 92.57g mol-1, and its density is 0.847g mL-1. 1) Calculate the number of moles of 2-chloro-2methylpropane used in this experiment.
Evaluate the value of Beta for an ideal gas. For an ideal gas, express the derivative (dp/dT)v in terms of alpha as well as Beta. Do the same derivative for van der Waals gas.
Compute the Ca+2 concentrations in a saturated solution of CaF2(s). The solution as well contains .0095M of Mg(NO3)2. Ksp for CaF2 = (3.9 x 10^-11)
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