Final answer:
BaO in the provided compounds contains a covalent bond, while the other options have ionic or mixed bonding types.
Explanation:
Covalent bonds:
- N₂O
- SiO₂
In the given options, BaO contains a covalent bond as it is formed between two nonmetals (Ba and O). The rest of the options contain ionic bonds or a mix of ionic and covalent bonds.
Learn more about Ionic and Covalent Bonds here:
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