Why are molecular models important in the understanding of molecules?
(Select all that apply.)
A. They can offer a perfect visual image of the compound.
B. They provide a visual of arrangement of atoms, bonds, and valence electrons in the compound.
C. They can identify the number of protons and neutrons in the atoms of the bond.
D. They provide insight as to how a molecule will interact.
I read on the textbook a sentence like this: "The melting and boiling points of alkanes increase as their molecular sizes increase. This is because as alkane molecules become bigger, the attractive forces between the alkane
What intermolecular forces are important in the binding of organic molecules to the absorbent in absorption chromatogrpahy? Select all that apply. A) London forces B) Van der Waals forces C) Covalent Bonding D) Hydrogen bonding E)
Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the
Sometimes as a solute dissolves in a solvent, the solute molecules dissociate to some extent. Sometimes solute molecules associate to form larger molecular units, such as dimers or trimers. Discuss the effect of dissociation and
The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of the mass of a molecular cloud is in the form of water molecules, and the mass density of such a cloud is roughly 4.0×10−21
1. How does one become a citizen? Select all that apply A) A person is born in the united states. B) A person of foreign birth is granted citizenship after living in the u.s. for five years C) A person of foreign birth
1. Identify the phase or phases of matter (solids, liquids, and gases) that apply to each statement. More than one phase of matter may apply to each statement. a. Molecules do not move around, but vibrate in place b. Has volume