Chapter 2
Practice Quiz
1. T F There are 92 natural occuring elements.
2. T F Matter is anything that occupies space and has a mass.
3. T F The atomic mass of an element is the number of protons and not the neutrons.
4. T F Elements with high neutron numbers tend to be radioisotopes.
5. T F A cation is an atom that has gained an electron.
6. T F Ionic bonds typically occur with elements of carbon that tend to share electrons.
7. T F Water and methane gas are both polar covalent bonds.
8. T F A synthesis reaction can also act as a reversible reaction.
9. T F A solution is a permanent homogenous mixture of a solcent and solute.
10. T F Water has a high specific heat meaning that it changes its temperature rapidly with hot or cold conditions.
11. H2CO3
is an example of a ____________
A. weak base
B. weak acid
C. strong base
D. Strong acid
E. neutral
12. The 6
carbon carbohydrates are called__________
A. Triose
B. Hexose
C. Pentose
D. Tetrose
E. Heptose
13. Non superimposible
molecules are called______
A. chirals
B. aldose sugars
C. ketone sugars
D. cyclic sugars
E. linear sugars
14. In general
the type of sugars that are more readily digested are called __________ linkages
A. covalent
B. ionic
C. beta
D. alpha
E. gamma
15. Saturated
oils tend to have boiling points that are________
A. lower
B. higher
C. unaffected
16. The element
that tends to destroy the affects of soap is____________
A. sodium
B. lithium
C. potassium
D. calciuim
E. all of the above have the ability
17. The suffix
-ol refers to ________
A. ketones
B. alcohols
C. acids
D. bases
E. none of the above
18. Amino acids are amphoteric because they can act as________
A. acids
B. bases
C. both acid and base
D. none of the above
19. The secondary
structure of a protein is determined by its __________
A. order of amino acids
B. folding in 2 dimensions
C. folding in 3 dimensions
D. combining with other proteins
E. all of the above are correct possibilites
20. A double
ring DNA subunit is called
A. thymine
B. cytosine
C. guanine
D. adenine
E. purine