Chemistry and Chemical Bonds for Nursing School Entrance Exam Practice Problems
The study guide for these practice questions can be found at:
- The bond between oxygen and hydrogen atoms in a water molecule is
- a hydrogen bond.
- a polar covalent bond.
- a nonpolar covalent bond.
- an ionic bond.
- Which of the following is a nonpolar covalent bond?
- the bond between two carbons
- the bond between sodium and chloride
- the bond between two water molecules
- the bond between nitrogen and hydrogen
- The type of bond formed between two molecules of water is a
- polar covalent bond.
- hydrogen bond.
- nonpolar covalent bond.
- peptide bond.
- Which of the following lists contains the formulas for these ions, in the order given: ammonium, silver, bicarbonate/hydrogen carbonate, nitrate, calcium, fluoride?
- Am–, Si++, HCO3–, NA+, CM–, F+
- AM+, Ag+, CO32–, NO3–, Cal+, Fl–
- NH4–, Ag+, HCO3–, NO3–, Cal+, Fl–
- NH4+, Ag+, HCO3–, NO3–, Ca2+, F–
- If X (atomic number 4) and Y (atomic number 17) react, the formula of the compound formed will be
- To acquire an outer octet, an atom of element 19 has to
- lose one electron (and acquire a charge of +1).
- lose two electrons (and acquire a charge of +2).
- gain one electron (and acquire a charge of –1).
- gain two electrons (and acquire a charge of –2).
- The most common ions of the elements of group VIIA have electrical charges of
- Which of the following is true according to the octet rule?
- Ions of all Group IIA elements have electron configurations that conform to those of the noble gases and have charges of +1.
- The reactions of the active atoms of the representative elements of the periodic table generally lead to noble gas configurations.
- An ion of a metallic element that has lost electrons to achieve noble gas configuration is less active than an atom of the same element.
- The most reactive elements are generally those whose atoms are nearest, but not equal, to noble gas configurations.
- Electron transfer is best described as a process
- by which ionic compounds are formed from atoms of their elements.
- in which a covalent bond is made.
- that occurs between two nonmetals.
- that occurs between two metals.
- How many electrons do the following have in their outer levels: S2–, Na+, Cl–, Ar, Mg2+, and Al3+?
From Nursing School Entrance Exam. Copyright © 2009 by LearningExpress, LLC. All Rights Reserved.
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