1. Smells 1 and 2 Review

2. How would you expect the following molecule to smell?
butyric acid C4H8O2
Minty B. Sweet C. Putrid D. Fishy
Answer: Putrid

3. How would you expect the following molecule to smell?
ethyl pentanoate C7H14O2
Minty B. Sweet C. Putrid D. Fishy
Answer: Sweet

4. How would you expect the following molecule to smell?
Octyl formaline C7H13N
Minty B. Sweet C. Putrid D. Fishy
Answer: Fishy

5. How would you expect the following molecule to smell?
Pulgone C5H10O
Minty B. Sweet C. Putrid D. Fishy
Answer: Minty

6. Which of the following is NOT a molecule?
HBr B. KF C. CH4 D. NH3
Answer: KF, potassium is a metal

7. Which of the following IS considered a molecule?
NaCl B. TiO2 C. CaO D. PF3
Answer: PF3, all nonmetals

8. What type of elements are molecules composed of?
Only metals
B. Only metalloids
C. Only non-metals
D. Metals and non-metals
Answer: only non-metals

9. Which molecule is a REACTANT in the chemical equation shown: CH2O2 + C8H18O  H2O + C9H18O2
D. Both C8H18O and H2O
Answer: A

10. Which molecule is a PRODUCT in the chemical equation shown: CH2O2 + C8H18O  H2O + C9H18O2
C. CH2O2
D. Both C8H18O and CH2O2
Answer: B

11. Which is the best description of the products in a chemical equation?
The molecules before any reaction occurs
The starting ingredients
C. The molecules during a chemical reaction
D. The molecules after a reaction has occurred
Answer: D

12. What is an isomer? Answer: B
Molecules with the same structure but different molecular formula
Molecules with a different structure but the same molecular formula
C. Molecules with the same structure and molecular formula
D. Molecules with a different structure and molecular formula
Answer: B

13. Which molecules have the same structure?
Answer: D
Molecule 1 and 2 B. Molecule 3 and 4
C. Molecule 4 and 1 D. Molecules 1, 3 and 5

14. What functional group is present in the molecule below?
Ketone B. Ester C. Amine
D. Carboxylic Acid E. Alcohol

15. What functional group is present in the molecule below?
Ketone B. Ester C. Amine
D. Carboxylic Acid E. Alcohol

16. What functional group is present in the molecule below?
Ketone B. Ester C. Amine
D. Carboxylic Acid E. Alcohol

17. What functional group is present in the molecule below?
Ketone B. Ester C. Amine
D. Carboxylic Acid E. Alcohol

18. What functional group is present in the molecule below?
Answer: E
Ketone B. Ester C. Amine
D. Carboxylic Acid E. Alcohol

19. How many valence electrons does bromine have?4 5 6 7 8
Answer: D

20. How many bonds can bromine make when you draw the Lewis dot symbol?1 2 3 4 5
Answer: A

21. How many lone pairs of electrons does bromine have?1 2 3 4 5
Answer: C

22. How many valence electrons does arsenic (As) have?4 5 6 7 8
Answer: B

23. How many bonds can an arsenic atom make?1 2 3 4 5
Answer: C

24. How many lone pairs of electrons does arsenic have?1 2 3 4 5
Answer: A

25. What molecular shape would H2S have
What molecular shape would H2S have? (Draw the Lewis dot structure to help)
Tetrahedral
Pyramidal
Bent
Linear
Point
Answer: C

26. What molecular shape would NBr3 have
What molecular shape would NBr3 have? (Draw the Lewis dot structure to help)
Tetrahedral
Pyramidal
Bent
Linear
Point
Answer: B

27. What molecular shape would HF have
What molecular shape would HF have? (Draw the Lewis dot structure to help)
Tetrahedral
Pyramidal
Bent
Linear
Point
Answer: D

28. What molecular shape would SiF4 have
What molecular shape would SiF4 have? (Draw the Lewis dot structure to help)
Tetrahedral
Pyramidal
Bent
Linear
Point
Answer: A

29. What molecular shape would Kr have
What molecular shape would Kr have? (Draw the Lewis dot structure to help)
Tetrahedral
Pyramidal
Bent
Linear
Point
Answer: E

30. How many electrons are in a single covalent bond?1 2 3 4 6
Answer: B

31. How many electrons are in a triple covalent bond?1 2 3 4 6
Answer: E

32. How many electrons are in a double covalent bond?1 2 3 4 6
Answer: D