18 Questions
What is the main difference between amorphous metals and most metal glasses?
Amorphous metals have lower electrical conductivity, while metal glasses are transparent
What is the relationship between temperature and kinetic energy of the particles in a substance?
Temperature is directly proportional to the kinetic energy of the particles
What is the opposite of evaporation?
Condensation
What is the phase change that occurs when a solid substance goes directly to a gas state?
Sublimation
What is the state of matter that has a set volume and shape?
Solid
What is the state of matter that is highly ionized (charged) and exists at high temperatures?
Plasma
Which of the following statements about matter and space is correct?
The amount of space between particles is related to the state of matter for all three states.
What is the relationship between kinetic energy and temperature?
Kinetic energy is directly proportional to temperature.
What is the definition of density?
The amount of mass per unit volume.
What is an amorphous solid?
A solid with a random molecular arrangement.
Which of the following statements about London dispersion forces is correct?
They are attractive forces resulting from temporary dipole moments.
What is the main factor that determines the strength of dipole-dipole forces?
The dipole moment of the molecules.
Which of the following statements about hydrogen bonds is true?
Hydrogen bonds occur between a hydrogen atom and an electronegative atom like oxygen or nitrogen.
What type of attractive force occurs between an ion and a polar molecule?
Ion-dipole forces
Which of the following statements about ion-dipole forces is correct?
They are important for solutions of ionic compounds in polar liquids.
What is the characteristic of a nonpolar molecule?
The terminal atoms or groups are symmetrically arranged around the central atom.
Which of the following statements about polar molecules is false?
The terminal atoms are symmetrically arranged.
What is the difference between an ion and a polar molecule?
An ion has a fixed charge, while a polar molecule has a delocalized positive and negative charge.
Learn about the special type of dipole-dipole interaction in hydrogen bonding between hydrogen and electronegative atoms, as well as the attractive force between ions and polar molecules. Understand the differences and strengths of these interactions.
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