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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?
How long will it take for the pressure of the helium to equal the pressure of the argon in the container? When the pressure are equal what will the total pressure in the container be
A sample of krypton gas at a pressure of 0.621 atm and a temperature of 20.7oC, occupies a volume of 17.2 liters. If the gas is compressed at constant temperature to a volume of 5.62 liters, the pressure of the gas sample will be
Explain what intermolecular forces might be acting at the dimmer-dimmer interface? Define are the intermolecular forces at the monomer-monomer interface different
Consider a buffer by dissolving .139 M sodium benzoate and .081 M benzoic acid in water and adjusting the final volume of the solution to 500 mL. pKa of benzoic acid = 4.19. What is the pH of the buffer
What is the formula and name for the following (1) KOH+HBr,(2) Zn+AgNO3,(3) K+NaCl, (4) HCl+NaOH (5) BaCl2+NaSO4 (6) H2+O2
he following compound has two stereoisomers. One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 0 D
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline
Calculate the freezing point and normal boiling point of the following solution: 25.0 mL of ethanol, C2H5OH (d=0.780 g/mL), in 735 g of water (d=1.00 g/cm3)
a solid,is thought to be either zinc or lead(2)nitrate.how are we going to determine the identity of the solid?
What is the number of substituents that are equatorial for a stable (E)-1-chloro-3-methylcyclohexane when A for methyl is 1.74 and A for chloro is 0.50
If the wire between points B and C breaks open, how much current will be measured by M1 and M3? How much voltage would be measured across points B and C?
A certain atom has a doubly degenerate ground level pair and an upper level of four degenerate states at 450 cm?1 above the ground level. In an atomic beam study of the atoms it was observed that 30 per cent of the atoms were in the upper level
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