GOL 105 CORE MAIN ALL ANSWERS AND
QUESTIONS SET A+
✔✔Which of the following is true about rocks?
a. Rocks exhibit characteristic crystalline structures and set chemical compositions.
b. Rocks do not necessarily exhibit a characteristic crystalline structure or set chemical
composition.
c. Rocks exhibit characteristic crystalline structures that result in diagnostic physical
properties.
d. Rocks exhibit predictable chemical compositions that vary within well-defined limits. -
✔✔b. Rocks do not necessarily exhibit a characteristic crystalline structure or set
chemical composition.
✔✔In minerals, how are the chemical composition and the crystalline structure related?
a. The chemical composition of a mineral implies a specific arrangement of atoms.
b. The crystalline structure is determined by the internal arrangement of atoms.
c. The internal crystalline structure implies a specific chemical composition.
d. The internal crystalline structure and chemical composition are unrelated. - ✔✔b.
The crystalline structure is determined by the internal arrangement of atoms.
✔✔Using the above information from the periodic table of elements, identify how many
protons a molecule of NaCl contains.
a. 27
b. 28
c. 58.443
d. 23 - ✔✔b. 28
✔✔The atomic number of an atom is defined by ___.
a. the number of neutrons, and the number determines the atom's boiling point
, b. the number of protons, and the number determines the atom's boiling point
c. the number of neutrons, and the number determines the atom's chemical nature
d. the number of electrons, and the number determines the atom's chemical nature
e. the number of protons, and the number determines the atom's chemical nature -
✔✔e. the number of protons, and the number determines the atom's chemical nature
✔✔Which statement is true about potassium and sulfur, elements that are located in
Groups I A and VI A, respectively, in the periodic table of elements?
a. Although potassium and sulfur are located in different groups, they occur in the same
horizontal row in the periodic table and will exhibit similar properties.
b. Sulfur is heavier than potassium because sulfur has a higher group number.
c. Potassium was discovered before sulfur because it is located in a group with a lower
number.
d. Potassium and sulfur are found in different vertical columns in the periodic table, and
they exhibit different properties. - ✔✔d. Potassium and sulfur are found in different
vertical columns in the periodic table, and they exhibit different properties.
✔✔In decreasing order of abundance, which of the following sets of elements account
for more than 98 percent of the continental crust?
a. diamond, quartz, calcite, halite
b. O, Si, Al, Fe, Ca, Na, K, Mg
c. Si, Na, Ca, K, Fe, Al, O, Mg
d. O, Si, Fe, Mg, Ca, K, Na, Al - ✔✔b. O, Si, Al, Fe, Ca, Na, K, Mg
✔✔What, if any, is the main difference between ionic and covalent chemical bonds?
a. Ionic bonds are limited to elements located in Groups I A and VII A, whereas
covalent bonds are not group specific.
b. Electrons are transferred between atoms in a covalent bond, but they are shared
between atoms in an ionic bond.
c. Both bonds share electrons in the same fashion.
d. Electrons are transferred between atoms in an ionic bond, but they are shared
between atoms in a covalent bond. - ✔✔d. Electrons are transferred between atoms in
an ionic bond, but they are shared between atoms in a covalent bond.
✔✔Why are silicate minerals the most abundant minerals in Earth's crust?
a. Si and Ca are the most abundant elements in the crust.
b. Si and O are the most abundant elements in the crust.
c. Si and Fe are the least abundant elements in the crust.
d. Al and Si are the least abundant elements in the crust. - ✔✔b. Si and O are the most
abundant elements in the crust.
QUESTIONS SET A+
✔✔Which of the following is true about rocks?
a. Rocks exhibit characteristic crystalline structures and set chemical compositions.
b. Rocks do not necessarily exhibit a characteristic crystalline structure or set chemical
composition.
c. Rocks exhibit characteristic crystalline structures that result in diagnostic physical
properties.
d. Rocks exhibit predictable chemical compositions that vary within well-defined limits. -
✔✔b. Rocks do not necessarily exhibit a characteristic crystalline structure or set
chemical composition.
✔✔In minerals, how are the chemical composition and the crystalline structure related?
a. The chemical composition of a mineral implies a specific arrangement of atoms.
b. The crystalline structure is determined by the internal arrangement of atoms.
c. The internal crystalline structure implies a specific chemical composition.
d. The internal crystalline structure and chemical composition are unrelated. - ✔✔b.
The crystalline structure is determined by the internal arrangement of atoms.
✔✔Using the above information from the periodic table of elements, identify how many
protons a molecule of NaCl contains.
a. 27
b. 28
c. 58.443
d. 23 - ✔✔b. 28
✔✔The atomic number of an atom is defined by ___.
a. the number of neutrons, and the number determines the atom's boiling point
, b. the number of protons, and the number determines the atom's boiling point
c. the number of neutrons, and the number determines the atom's chemical nature
d. the number of electrons, and the number determines the atom's chemical nature
e. the number of protons, and the number determines the atom's chemical nature -
✔✔e. the number of protons, and the number determines the atom's chemical nature
✔✔Which statement is true about potassium and sulfur, elements that are located in
Groups I A and VI A, respectively, in the periodic table of elements?
a. Although potassium and sulfur are located in different groups, they occur in the same
horizontal row in the periodic table and will exhibit similar properties.
b. Sulfur is heavier than potassium because sulfur has a higher group number.
c. Potassium was discovered before sulfur because it is located in a group with a lower
number.
d. Potassium and sulfur are found in different vertical columns in the periodic table, and
they exhibit different properties. - ✔✔d. Potassium and sulfur are found in different
vertical columns in the periodic table, and they exhibit different properties.
✔✔In decreasing order of abundance, which of the following sets of elements account
for more than 98 percent of the continental crust?
a. diamond, quartz, calcite, halite
b. O, Si, Al, Fe, Ca, Na, K, Mg
c. Si, Na, Ca, K, Fe, Al, O, Mg
d. O, Si, Fe, Mg, Ca, K, Na, Al - ✔✔b. O, Si, Al, Fe, Ca, Na, K, Mg
✔✔What, if any, is the main difference between ionic and covalent chemical bonds?
a. Ionic bonds are limited to elements located in Groups I A and VII A, whereas
covalent bonds are not group specific.
b. Electrons are transferred between atoms in a covalent bond, but they are shared
between atoms in an ionic bond.
c. Both bonds share electrons in the same fashion.
d. Electrons are transferred between atoms in an ionic bond, but they are shared
between atoms in a covalent bond. - ✔✔d. Electrons are transferred between atoms in
an ionic bond, but they are shared between atoms in a covalent bond.
✔✔Why are silicate minerals the most abundant minerals in Earth's crust?
a. Si and Ca are the most abundant elements in the crust.
b. Si and O are the most abundant elements in the crust.
c. Si and Fe are the least abundant elements in the crust.
d. Al and Si are the least abundant elements in the crust. - ✔✔b. Si and O are the most
abundant elements in the crust.
