States of Matter
Thermochem
Nuclear Chem
Organic Chem
Miscellaneous
100
A solid transitions to liquid then to gas. What are the names of the phase changes?
Melting and boiling
100
The average kinetic speed of molecules in a substance is a measure of heat or temperature?
Temperature
100
Nuclear reactions focus mainly on this part of the atom.
The nucleus
100
Why is carbon so ideal for organic life?
4 valence electrons
Ability to single, double, triple bond
Small and light
100
A pH range of 0-7 is normal for a(n) ________.
Acid
200
________ is the state of matter where atoms constantly slide past each other, but are still confined to a space.
Liquids
200
This is an endothermic or exothermic reaction?
Endothermic (more energy ending than when you started)
200
How many protons would an isotope of Carbon-14 have?
6
200
What does the prefix in an organic molecule's name tell you?
The number of carbon atoms
200
What is the difference between a saturated and supersaturated solution?
Exceeds proportion of solute:solubility in solution at a given temperature.
300
Describe the relationship between kinetic energy (movement) and intermolecular forces (what holds atoms together)
They are inversely related
300
What are the 3 types of modes of heat transfer?
Convection
Conduction
Radiation
300
Name the 3 types of radioactive decay.
Alpha, beta, gamma
300
Alkanes, alkenes, and alkynes differ because of...
The number of bonds in an organic molecule
300
What are the variables in the Ideal Gas Law?
PV = nRT
Pressure, volume, number of moles, temperature
400
Which of these letters DOES NOT represent a phase change occurring?
A, C, E
400
The measure of disorder in a system
Example: H2O (s) --> H2O (g)
Entropy!
400
500g of radioative Carbon-14 undergoes 5 half-life decays. How much is left?
15g
400
What is the name of an atom that gives an organic molecule its structure?
A functional group
400
According to Boyle's Law, as pressure increases, volume _______.
Decreases
500
Name some exothermic phase changes (energy exits the system)
Freezing, Condensation, Deposition
500
If the product side of a thermokinetic system experiences stress, Le Chateleier's principle suggests that the equilibrium will shift to the ...
Reactants
500
Name the particle (in isotope notation) that pops off of a beta decay.
500
Draw a molecule of butene
(4 carbons, double bonds)
500
Titrations are important for scientists studying acids and bases. Why?
Determine the exact neutralization needed for an acid-base reaction.
Acid + base --> salt + H2O