Particle Behavior
Solutions
Defects and Bonds
Conversions
Random
100
What are elastic collisions?
collisions between particles in which no kinetic energy is lost
100
What do you call a solution where the solvent is water?
An aqueous solution
100
True or False:
Covalent bonds are made from nonmetals, and ionic bonds are made from metals and nonmetals.
True
100
Moles to Particles: How many water molecules are present in 3.5 mol of H₂O?
2.107 x 1024
100
What does STP stand for?
Standard Temperature and Pressure
200
At what point do the bonds between particles break?
Boiling Point
200
Phase diagrams have a point called the triple point. What does the triple point represent?
The temperature and pressure where all 3 phases of a substance can exist at the same time
200
What is an alloy?
For 200 extra points, give me a common example of an alloy.
A mixture of 2 or more elements, at least one of which is a metal
Bonus question possible answers: brass, steel, cast iron, aluminum foil, bronze, stainless steel, sterling silver, most gold jewelry
200
Particles to Moles: If you have 2.5 x 10²⁴ molecules of water, how many moles of water do you have?
4.15 mol water
200
What is Avogadro's Number?
6.02 x 1023
300
What does this image represent?
Vapor pressure
300
A solubility curve is a graph of the solubility as a function of ______________.
Temperature
300
What point defect in a crystal structure occurs when different atoms take the place of existing atoms in the crystal?
a) interstitial defect
b) substitution defect
c) vacancy defect
d) dislocation defect
b) substitution defect
300
Moles to Mass: If you have 3.5 moles of sodium chloride (NaCl), what is the mass in grams of that sample?
203 g NaCl
300
Is this chemical formula a molecule or formula unit?
H2O
molecule
400
What are the 3 kinds of particle motion?
Bonus 200 if you can tell me what type of motion each phase does (solid, liquid, and gas).
rotational, vibrational, translational
gas: all 3
liquid: rotate, vibrate
solid: only vibrate
400
What are the three types of solution concentrations?
Unsaturated, Saturated, and Supersaturated
400
What point defect in a crystal structure occurs when atoms are missing from the lattice structure?
a) interstitial defect
b) substitution defect
c) vacancy defect
d) dislocation defect
c) vacancy defect
400
What is the molar volume of a gas at STP?
22.4 L
400
Is this chemical formula a molecule or formula unit?
NaBr
Formula unit
500
Surface tension in water is caused by very strong __________ bonds.
hydrogen
500
Which type of solution contains more solute than what can dissolve in a certain volume of solvent at a given temperature and pressure?
Supersaturated solution
500
What point defect in a crystal structure occurs when extra atoms are stuck where they do not belong?
a) interstitial defect
b) substitution defect
c) vacancy defect
d) dislocation defect
a) interstitial defect
500
What is the molar mass of this substance in g/mol?
MgS2
88.425 g/mol
500
To dilute a solution, do you:
a) add more solute
b) add more solvent
b) add more solvent