REVISION MATERIAL FOR FALL 2024
1 . Using whole numbers, determine the molecular weight of
calcium hydroxide, 74
2. The symbol for bromine is
3. Which if the following carries a negative charge? : an electron
4. Which of the following is located in the nucleus of an atom?:
protons and neutrons
5. How many protons are found in the nucleus of a boron-
11(11B) atom?: 5
6. When magnesium forms an ion, it would be represented as
: Mg2+
7. TIF : H20 is a binary compound.: True
8. What is the correct lewis structure for C2H4?:
c==c
9. How many electrons must an oxygen gain to achieve a noble
gas configuration?: 2
10. The most positive ion in human fluids is
1 1. Theif an atom is the number equal to
the number of protons in the nucleus of an atom and is
represented by Z.: atomic number 12. Isotopes differ from each
other in what way? : they have different numbers of neutrons in
the nucleus
13. The molecular structure of water should be: bent because of
the unshared electrons on the molecule.
14. Which pair of element will be further apart in
electronegativity?
b)Cl & F
, CHEM 114 FINAL. QUESTIONS AND ANSWERS.
REVISION MATERIAL FOR FALL 2024
c)Mn & Se
d) U & cs: a)Li & a
15. Which statement below is true for metals in ionic
compounds?
16. Identify the correct way to name a binary ionic compound:
a)name= nonmetal+ -ide
b)name=metal+metal+ -ide
c)name=nonmetal stem + metal+ -ide
d) name= metal + nonmetal stem + -ide: d) name= metal +
nonmetal stem + -ide 17. What is the Lewis structure for a group
IllA(1 3) element M?: 3 Dots- one left, one top, one right of M
18. In organic compounds, carbon with a a tetrahedral
shape has hybridization.: sp3
19. CH3-CH2-CH2-CH2-CH2-CH3: What is a structural isomer of
the H H H H H shown .
20. 3: The IUPAC name for the chemical shown contains an ethyl
grot what position?
21 . Alkanes are in water and than water.: insoluble
less