1. Atoms & Nuclear Chem.
2. Electrons & the Periodic Table
3. Chemical Bonding
4. Chemical Reactions
5. Moles
6. Stoichiometry
Miscellaneous
200
The only neutral subatomic particle.
Neutron
200
The outermost electrons in an atom responsible for bonding.
Valence Electrons
200
A bond where electrons are shared.
Covalent Bond
200
One way to increase the speed of a reaction
Increase Surface Area, Temperature, Agitation, Concentration of Reactants.
Add a Catalyst
200
One dozen is 12 things, One mole is...
Avogadro's Number of things
6.02 x 1023 things
200
3 Si + 2 N2 → Si3N4
According to the balanced equation 9 moles of Si produces __ moles Si3N4
3
(9 mol Si) x (1 mol Si3N4 /3 mol Si) = 3 moles Si3N4
200
According to the octet rule, atoms want this number of valence electrons to get a stable noble gas configuration.
8
400
A nuclear reaction where two or more nuclei come together to make a larger nucleus.
Fusion
400
The most electronegative element in the periodic table.
Fluorine
400
Cations are positive, _____ are negative.
Anions
400
This is the profile of a ____ reaction.
Endothermic
400
20 moles of Helium weighs...
80 grams
mass = moles x molar mass
mass = 20 mol x 4 g/mol = 80
400
CH4 + 2 O2 → CO2 + 2 H2O
In the reaction above 10.0 g CH4 makes 27.4 g CO2, while 10.0 g O2 makes 6.88 g CO2. The limiting reactant is...
O2
Oxygen
400
An element that is shiny silver solid falls on the floor and breaks. This element is most likely...
Metalloid / Semimetal
600
This is an example of ___ decay.
Alpha
600
The common charge of an element in group 15
-3
600
The chemical formula for Copper (III) Chloride
CuCl3
600
The two products of the complete combustion reaction of organic molecules.
CO2 and H2O
Carbon dioxide and Water
600
The Volume of 1 mole of gas at STP....
22.4 L
PV = nRT
STP = 273 K & 1 atm
(1 atm x V) = (1 mol x 0.0821 Latm/Kmol x 273 K)
V = 22.4 L
600
If the pOH of a solution is 10,the pH of the solution is..
4
pH + pOH = 14
pH + 10 = 14
pH = 14 - 10 = 4
600
Catalyst increase the rate of the reaction by lowering the ______
Activation Energy (Ea)
800
The number in the upper left corner of the element symbol.
?X
The Mass Number
800
Elements in group 18 are known as...
Noble Gases
800
The name of this molecule PCl5
Phosphorous Pentachloride
800
These numbers will balance the equation…
__N2 + __F2 → __NF3
1, 3, 2
1 N2 + 3 F2 → 2 NF3
800
The empirical formula of C6H4O2 is...
C3H2O
Simplify the subscripts by dividing by the Least Common Factor of 2.
800
The moles of Cl- in solution when 5 moles of Aluminum Chloride (AlCl3) ionize in water
15 moles
AlCl3 → Al3+ + 3 Cl-
(5 mol AlCl3 /1) x (3 mol Cl-/1 mol AlCl3) = 15 moles Cl-
800
According to the ideal gas law PV equals...
"nRT"
moles x gas constant x Temperature
1000
The name of the element that balances this equation.
3717Cl → ? + 0-1e
Argon
1000
This shows electron configuration for...
1s22s22p63s23p64s13d10
Copper
1000
The strongest intermolecular forces found in water.
Hydrogen Bonds
1000
The missing product of this acid base neutralization is…
2 HCl + Ba(OH)2 → ? + 2 H2O
Barium Chloride or BaCl2
1000
When 10 mL of 2 M solution is diluted to 40 mL, the concentration of the dilute solution is..
0.5 M
M1V1 = M2V2
10 x 2 = M2 x 40
M2 = 20 / 40
1000
The percent yield is 50%, the theoretical yield is 60 g, so the actual yield is...
30 g
1000
An atom with 8 protons, 7neutrons, 10 electrons has a ___ charge.
-2
Negative two charge
Charge = 8 protons - 10 electrons = -2