3
QuizMultiple Choice

Types of Chemical Bonds

Question 3 • *26-27 CFISD TX-Chemistry A CR

Which statement is generally true about CaCl2?

Answer
A
It has only metallic bonds between the atoms.
B
It has only covalent bonds between the atoms.
C
Its bonds are formed by large differences in electronegativity.
D
Its bonds are formed by small differences in electronegativity.

Explanation

Calcium is a metal and chlorine is a nonmetal, so calcium chloride (CaCl2) is generally ionic. Calcium transfers electrons to chlorine, and the large electronegativity difference between the elements favors this electron transfer. Therefore, the statement that its bonds are formed by large differences in electronegativity is correct.

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