Chemistry Semester 2 Final Exam
Show your work on scratch paper, especially when the problem says to!
Periodic Table of the Elements
1. How many electrons does a neutral Carbon atom have?
2. Magnesium commonly forms an ion with a charge of __________
3. What is the name of the family that contains Neon?
Alkaline Earth Metals
4. Atomic Radius _____________ from left to right across a period and _____________ from top to bottom down a column on the periodic table.
5. Which atom has the highest ionization energy, P, Mg, Mn, Cs?
6. The last subshell/ending subshell electron configuration for Se is____________. You may use an AufBau Diagram.
7. Which is the correct Noble Gas configuration for Aluminum? You may use an AufBau diagram.
[Ar] 4s2 3d10 4p5
[Kr] 5s2 4d1
[Ne] 3s2 3p1
[Xe] 6s2 4f6
8. How many neutrons are in a neutral Bromine atom?
9. What does Valence mean?
The number of electrons involved in or available for chemical bond formation
The number of electrons in a neutral atom
The number of protons + neutrons in an atom
The number of orbitals an atom has
10. In a Lewis Dot structure of Carbon TetraChloride how many dots would be drawn total? (Show drawing)
11. In a Lewis Dot structure, how many dots will be drawn around a Carbon that is bonded to four other atoms?
12. In a Lewis Dot structure of Carbon Dioxide, how many dots would be drawn in between the Carbon and one of the Oxygen atoms? (Show Drawing)
13. Carbon Tetrachloride has a VSEPR geometry of ________
14. What type of intermolecular force involves a permanent polarity in a molecule?
London Dispersion forces
15. Which of these elements would form a polar bond with Carbon? (Show work)
16. Electronegativity determines if a polar bond will form. Non-polar bonds form when _________
Adding the electronegativities equals 0.4 or greater
Subtracting the electronegativities equals 0.4 or greater
Adding the electronegativities equals 0.4 or less
Subtracting the electronegativities equals 0.4 or less
17. A molecule has a central atom with 3 atoms bonded to it and one lone pair of electrons. The shape will be _______________________
18. A tetrahedral molecule has a central Carbon surrounded by four Chlorine. Is this overall molecule polar? (Show drawing)
Yes, because the arrows all point at the Carbon
No, because all the arrows point at the Carbon
Yes, because the arrows all point out to the Chlorines
No, because the arrows all point out to the Chlorines
19. In order for a substance to dissolve___________
The inter-molecular forces that link the solute molecules together must be broken.
The inter-molecular forces that link the solvent molecules must be strengthened.
The Dipole of the solute must be ignored.
The new interactions between the solute and the solvent must be weaker than the inter-molecular forces between the solvent molecules.
20. Fill in the blanks ____Sodium Iodide + ___Chlorine gas ---> ____ Sodium Chloride + ____ Iodine gas (Show work)
1, 1, 1, 1
2, 2, 2, 2
2, 1, 2, 1
1, 2, 1, 2
21. Using the equation from question 20, If you had 4 moles of Sodium Iodide how many moles of Iodine gas could you make? (Show work)
22. Use the same equation from #20. How many grams of sodium chloride could you make with 0.29 grams of sodium iodide? (Show work)
23. DiNitrogen Pentoxide plus Water yields two Nitric Acid ( N2O5 + H2O --> 2 HNO3 ). How many moles of water are needed to make 1.25 moles of Nitric Acid? (Show work)
1.25 moles of Water
1.0 mole of Water
0.625 moles of Water
2.5 moles of Water
24. Using the same equation as question 23. How many grams of nitric acid will be produced when 0.25 moles of water are reacted? (Show work)
31.5 grams of HNO3
15.75 grams of HNO3
0.50 grams of HNO3
1.25 grams of HNO3
25. What is the name of the process where you use given information to figure out the grams, moles or number of molecules in a chemical equation?
Page 1 of 1
Never submit passwords through Google Forms.
This content is neither created nor endorsed by Google.
Terms of Service