Question

1. choose the best answer.

when two nonmetals form a bond, they create a(n) ____ bond.
hydrogen
ionic
metallic
covalent

1. choose the best answer.

when dissolved in water, this forms a solution that can conduct an electric current.
an electrolyte
a molecule
an atom
a crystal

Explanation:

Question 12

To determine the bond formed between two nonmetals, we analyze each option:

• Hydrogen bonds are intermolecular forces, not a primary bond type between two nonmetals forming a compound.
• Ionic bonds form between a metal and a nonmetal (due to electron transfer).
• Metallic bonds occur between metal atoms (in a metal lattice).
• Covalent bonds form when nonmetals share electrons (since they have similar electronegativities, they share rather than transfer electrons). So two nonmetals form a covalent bond.

To identify the correct option, we analyze each choice:

• An electrolyte is a substance that, when dissolved in water (or molten), produces ions that allow the solution to conduct electricity (ions are charge carriers).
• A molecule is a group of atoms bonded together; not all molecules conduct electricity in solution (e.g., sugar molecules in water do not).
• An atom is the basic unit of matter; dissolving an atom (not in a compound - forming ions) is not typical for conductivity in water.
• A crystal is a solid structure; dissolving a crystal (like a salt crystal) would involve the compound, but the term "crystal" itself does not describe the substance that conducts when dissolved. So the substance that forms a conducting solution in water is an electrolyte.

Answer:

D. covalent

Question 13