Question 4.6: Which of the following binary compounds would be expected to......
Which of the following binary compounds would be expected to be an ionic compound?
a. Al_{2}S_{3} b. H_{2}O c. KF d. NH_{3}
Step-by-Step
a. Ionic; a metal (Al) and a nonmetal (S) are present.
b. Not ionic; two nonmetals are present.
c. Ionic; a metal (K) and a nonmetal (F) are present.
d. Not ionic; two nonmetals are present.
The two compounds that are not ionic are molecular compounds (Section 4.1). Chapter 5 includes an extended discussion of molecular compounds. In general, molecular compounds contain just nonmetals.
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