Question

Which of the following compounds are held together by ionic bonds? Select all that apply.

A. CaCl2
B. CH4
C. NaCl
D. Sodium bromide
E. Carbon dioxide
F. FeBr3

Answer 1

The compounds held together by ionic bonds from the given list are CaCl2, NaCl, sodium bromide, and FeBr3. CH4 and carbon dioxide involve covalent bonding.

Step-by-step explanation:

The compounds that are held together by ionic bonds are typically formed between a metal and a nonmetal, where the metal loses electrons to become a cation and the nonmetal gains electrons to become an anion. Based on this, the compounds in the given list that are held together by ionic bonds are:

• A.CaCl2 (calcium chloride)
• C. NaCl (sodium chloride)
• D. FeBr3 ( Sodium bromide)
• F. (iron(III) bromide)

Compounds B. CH4 (methane) and E. Carbon dioxide are held together by colvent bond, as they are composed of nonmetals.