1. E) The vapor pressure of a liquid.
Increasing attractive intermolecular forces causes molecules in the liquid to bond more strongly
to each other. Thus it is more difficult for the molecules to escape into the gas phase and the
vapor pressure decreases.
All the other properties listed should increase in value.
2. A) Ba(OH)2
The light bulb glows because H2SO4 is an acid and strong electrolyte that ionizes to form H+
and SO42- ions that conduct electricity. Ba(OH)2 is a base that reacts with H2SO4 to form water
and insoluble BaSO4:
Ba(OH)2(aq) + H2SO4(aq) => BaSO4(s) + H2O(l)
The removal of H+ and SO42-ions decreases the conductivity of the solution, less current flows
and the bulb dims.
3. D) hydration
Hydration is the process whereby water molecules form dipole-dipole interactions with the solute
ions, releasing energy and causing the salt to fall apart.
4. E)All of these are correct.
All the statements about light, matter and energy are true.
5. d) 780 kJ, 1,575 kJ, 3,220 kJ, 4,350 kJ 16,100 kJ (you may have mistyped this in your
question but I have put the correct values here for you)
Silicon has electronic configuration 1s2 2s2p6 3s2p2
The first 4 electrons removed are in the n = 3 shell and have similar (but slowly increasing)
ionization energies. The 5th electron is from the n = 2 shell and is much more strongly bound to
the nucleus, so the ionization energy shows a large increase.
Solution
1. E) The vapor pressure of a liquid.
Increasing attractive intermolecular forces causes molecules in the liquid to bond more strongly
to each other. Thus it is more difficult for the molecules to escape into the gas phase and the
vapor pressure decreases.
All the other properties listed should increase in value.
2. A) Ba(OH)2
The light bulb glows because H2SO4 is an acid and strong electrolyte that ionizes to form H+
and SO42- ions that conduct electricity. Ba(OH)2 is a base that reacts with H2SO4 to form water
and insoluble BaSO4:
Ba(OH)2(aq) + H2SO4(aq) => BaSO4(s) + H2O(l)
The removal of H+ and SO42-ions decreases the conductivity of the solution, less current flows
and the bulb dims.
3. D) hydration
Hydration is the process whereby water molecules form dipole-dipole interactions with the solute
ions, releasing energy and causing the salt to fall apart.
4. E)All of these are correct.
All the statements about light, matter and energy are true.
5. d) 780 kJ, 1,575 kJ, 3,220 kJ, 4,350 kJ 16,100 kJ (you may have mistyped this in your
question but I have put the correct values here for you)
Silicon has electronic configuration 1s2 2s2p6 3s2p2
The first 4 electrons removed are in the n = 3 shell and have similar (but slowly increasing)
ionization energies. The 5th electron is from the n = 2 shell and is much more strongly bound to
the nucleus, so the ionization energy shows a large increase..
Trauma-Informed Leadership - Five Practical Principles
1. E) The vapor pressure of a liquid.Increasing attractive intermo.pdf
1. 1. E) The vapor pressure of a liquid.
Increasing attractive intermolecular forces causes molecules in the liquid to bond more strongly
to each other. Thus it is more difficult for the molecules to escape into the gas phase and the
vapor pressure decreases.
All the other properties listed should increase in value.
2. A) Ba(OH)2
The light bulb glows because H2SO4 is an acid and strong electrolyte that ionizes to form H+
and SO42- ions that conduct electricity. Ba(OH)2 is a base that reacts with H2SO4 to form water
and insoluble BaSO4:
Ba(OH)2(aq) + H2SO4(aq) => BaSO4(s) + H2O(l)
The removal of H+ and SO42-ions decreases the conductivity of the solution, less current flows
and the bulb dims.
3. D) hydration
Hydration is the process whereby water molecules form dipole-dipole interactions with the solute
ions, releasing energy and causing the salt to fall apart.
4. E)All of these are correct.
All the statements about light, matter and energy are true.
5. d) 780 kJ, 1,575 kJ, 3,220 kJ, 4,350 kJ 16,100 kJ (you may have mistyped this in your
question but I have put the correct values here for you)
Silicon has electronic configuration 1s2 2s2p6 3s2p2
The first 4 electrons removed are in the n = 3 shell and have similar (but slowly increasing)
ionization energies. The 5th electron is from the n = 2 shell and is much more strongly bound to
the nucleus, so the ionization energy shows a large increase.
Solution
1. E) The vapor pressure of a liquid.
Increasing attractive intermolecular forces causes molecules in the liquid to bond more strongly
to each other. Thus it is more difficult for the molecules to escape into the gas phase and the
vapor pressure decreases.
All the other properties listed should increase in value.
2. A) Ba(OH)2
The light bulb glows because H2SO4 is an acid and strong electrolyte that ionizes to form H+
and SO42- ions that conduct electricity. Ba(OH)2 is a base that reacts with H2SO4 to form water
and insoluble BaSO4:
2. Ba(OH)2(aq) + H2SO4(aq) => BaSO4(s) + H2O(l)
The removal of H+ and SO42-ions decreases the conductivity of the solution, less current flows
and the bulb dims.
3. D) hydration
Hydration is the process whereby water molecules form dipole-dipole interactions with the solute
ions, releasing energy and causing the salt to fall apart.
4. E)All of these are correct.
All the statements about light, matter and energy are true.
5. d) 780 kJ, 1,575 kJ, 3,220 kJ, 4,350 kJ 16,100 kJ (you may have mistyped this in your
question but I have put the correct values here for you)
Silicon has electronic configuration 1s2 2s2p6 3s2p2
The first 4 electrons removed are in the n = 3 shell and have similar (but slowly increasing)
ionization energies. The 5th electron is from the n = 2 shell and is much more strongly bound to
the nucleus, so the ionization energy shows a large increase.
