Solid
What is the freezing point of water?
0ยบ C
True or false: liquid molecules have enough energy to slide past one another, but not enough to break bonds
true
What is it called when a solid goes to a gas?
sublimation
Define matter
Matter is something that has mass and volume and therefore takes up space
What are the two types of solids?
Amorphous and crystalline
What two properties of water allows for the formation of water droplets?
cohesion and adhesion
The Ideal Gas Law
What are the four accepted phases of matter?
solid, liquid, gas, plasma
Give an example of an amorphous substance. (hint: amorphous solids are also called this)
Glass
What is the characteristic of water that allows for the the movement of water against external forces such as gravity?
Capillary action
What is the relationship between the average kinetic of a gas molecule and its molecular weight.
There is an inverse relationship between molecule size and average kinetic energy
Name all of the diatomic molecules
H2, N2, F2, O2, I2, Cl2, B2
What kind of solids can conduct electrical current when dissociated in water?
Ionic solids
What is the energy level of liquids relative to the energy of solid molecules?
Higher energy
What is a supercritical fluid?
It is a gas whose temperature and pressure are greater than the critical temperature and pressure which means that the distinction between gas and liquid disappears. The substance has gaseous properties but can sometimes be used as a solvent.
What is the difference between the triple point and the critical point?
Triple point is the temperature and pressure where all three states of matter can exist together and the critical point is the temperature and pressure in which the densities of liquid and gas are the same and therefore indistinguishable.
What is the main difference between crystalline and amorphous solids and what does it mean for the solid when it breaks?
Crystalline solids have a definite and orderly arrangement whereas amorphous does not which means crystalline solids have a clean cleavage if broken whereas amorphous solids will have ragged edges and will break into multiple pieces
Describe the relationship between surface tension and intermolecular forces
State two ways you can manipulate a substance into gaseous phase
Increase the temperature while keeping pressure constant or decreasing pressure while keeping temperature constant
Why does the atomic radii decrease as you go across the period?
As you move across the period, there is an increasing number of protons, but the number of electrons remain the same.