Big Idea 1
Big idea 2
Big idea 3
Big idea 4
Big idea 5
100
Which of the following is a metalloid?
S
- Pb
- Br
- Ge
- Sn
Ge
100
-------------------------How many sigma and pi bonds are in C6H6?-------------------------
3 pi bonds; 12 sigma bonds
100
From the information given in the graph it can be determined that the reaction is ______
Endothermic
100
What is the order of the reaction presented in the graph?
1st order
100
what is a state function?
A function where only the change between the initial and final states of the system matter, process does not matter.
200
What is the percent composition of oxygen in calcium peroxide
44.39%
200
What is the lewis dot structure for XeF4
200
A sample of a hydrate of CuSO4 was measured to have a mass of 250g, it was then heated until all water has evaporated. After the heating it was found that the hydrate weighed 160g. What is the formula for the hydrate.
CuSO4 ● 5H2O
200
What is the rate law for the reaction corresponding to the table given
rate=k[A]
200
For a reaction to be thermodynamically favorable at high temperatures what must the signs be for ΔH and ΔS?
ΔH=+ and ΔS=+
300
Fill in the blank: Moving down a group ionization energy _________; Moving from left to right across a period ionization energy _________.
Moving down a group ionization energy Decreases*; Moving from left to right across a period ionization energy Increases*.
300
What is the hybridization of SF4?
dsp3
300
A Cr3+(aq) solution is electrolyzed with a current of 7.60A. What mass of Cr(s) would be produced after 2 days.
236g
300
What is Collision Theory?
Chemical reactions occur because reactants are constantly moving around and colliding with one another.
400
The electron configuration [Xe] 4f14 5d4 6s2 belongs to _______.
Tungsten (W)
400
A mixture of gasses has 2.0mol of oxygen, 1.5mol of neon and 0.5mol of water vapor. If the total pressure is 558 mmHg then what is the partial pressure of neon?
P=209.25mmHg
400
Balance the reaction: Pb(OH)42-(aq) + ClO-(aq) ---> PbO2(s) + Cl-(aq) (Basic solution)
Pb(OH)42-(aq) + ClO-(aq) ---> PbO2(s) + Cl-(aq) + 2OH-(aq) + H2O(l)
400
Given the reaction A + 2B ---> C where the rate law is, rate=k[A][B]3. How would the rate change if the concentration of B were to be doubled and the concentration of A is unchanged?
By a factor of 8
400
Using the table determine ΔH for the reaction CH4(g) + 2O2(g) ---> CO2(g) + 2H2O(g)
-800 kJ/mol
500
X-Ray radiation has a wavelength of 10-10m, while Infrared radiation has a wavelength of 10-5m. Which type of radiation would have more energy? Why?
X-ray radiation. This is due to the equations E=hv and v=c/(wavelength). Since wavelength is smaller in X-ray radiation, frequency is larger. A larger frequency means more energy.
500
Which one of the following compounds of would have the highest lattice energy? C2H6 - MgCl2 - LiF - CaBr2
MgCl2
500
The combustion of 40.10 g of a compound which contains only C, H, Cl and O yields 58.57 g of CO2 and 14.98 g of H2O. Another sample of the compound with a mass of 75.00 g is found to contain 22.06 g of Cl. What is the empirical formula of the compound?
C4H5ClO2
500
Determine the rate law
rate=k[A]2[B]