Atomic Theory
Bonding
Reactions & Stoic
Kinetic &
Behavior of matter
Behavior of matter
Solutions
Acids and Bases
Acids and Bases
199
What subatomic particles make up the mass of an atom
P + N
199
Why are metals conductive?
Because of their mobile electrons.
199
What law states that, "The total mass of the products must be equal to the total mass of the reactants."
Law of Conservation of Mass
199
What is the energy that is required for a reaction to happen?
Activation energy
199
On a pH scale what are the ranges for:
Acids -
Bases-
Neutral -
Acids: 0-6
Bases: 8-14
Neutral: 7
300
Which is more reactive and why?
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s1 because it has an unfilled electron shell.
300
What is the formula for Iron (III) sulfide?
Fe2S3
300
Balance this equation
CaCl2 + Na3PO4 → Ca3(PO4)2 + NaCl
3CaCl2 + 2Na3PO4 → 1Ca3(PO4)2 + 6NaCl
300
What are two things that increase the rate of reaction?
Increase of:
Temperature, Volume, Concertation, Catalyst
300
What does it mean when a solution has more [H+] ion than [OH-] ions.
It is an Acid
301
What is the trend for electronegativity on the periodic table? (In what directions does it increases)
Up and Right
301
What is the empirical formula for a compound that has:
Carbons - 6
Hydrogen - 12
Oxygen - 6
CH2O
301
What are 4 of the 5 different reaction types?
Synthesis,
Decomposition,
Single Replacement,
Double Replacement,
Combustion
301
What does a catalyst do to
Lower Activation Energy
301
If you increase the temperature of an endothermic reaction which way will equilibrium shift. (Forward or Reverse)
Forward
401
When an electron moves from the ground state to the excited state, what happens with the energy?
Energy is absorbed.
401
What are the three main types of bonds, and how do the electrons move in the bonds?
Ionic - Transfer
Covalent - Shared
Metallic - Flow (sea of electrons)
401
The molar mass of Butane,C4H10, is 58.12 g/(mol) . How many moles are there in 14 grams of Butane?
0.2409 mol
401
A sample of Carbon Dioxide in a closed system has a volume of 200 mL at 600 K. If the pressure is held constant and the temperature is lowered to 300 K, the new volume of the gas will be what? (
(PV)/T = (PV)/T
)
100 mL
401
You have 50 mL of a 3.0 M HCl solution. You want to dilute it to a concentration of 0.5 M. What will the final volume be?
300mL
500
What is the orbital notation of Neon
1s2 2s2 2p6
500
Give an example of an Binary and Ternary Ionic compound:
Binary: 2 different elements
Ternary: 3 elements elements
500
3CaCl2 + 2Na3PO4 → Ca3(PO4)2 + 6NaCl
If you start with 1.00 moles of CaCl2, how many grams of NaCl will be produced?
116.9g
500
Label each letter, and say whether its a Endo/Exo reaction.
A - Energy of reactants
B - Activation Energy
C - Activation complex
D - Change in Enthalpy (ΔH)
E - Energy of Products
500
A chemist dissolves 5.00 grams of sodium hydroxide (NaOH) in enough water to make 200.0 mL of solution.
What is the molarity of the solution?
0.625M