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The incomplete table below shows selected properties of compounds that have ionic, covalent, or metallic bonds.

[tex]\[
\begin{tabular}{|c|c|c|c|}
\hline
1 & Ionic & Yes & High melting point \\
\hline
2 & $?$ & Yes & $?$ \\
\hline
3 & $?$ & No & \\
\hline
\end{tabular}
\][/tex]

Which information would best fill the blanks in row 3?

A. metallic bond and low melting point
B. metallic bond and high melting point
C. covalent bond and low melting point
D. covalent bond and high melting point

Sagot :

GinnyAnswer
To determine the information that best fills the blanks in row 3, let's analyze the type of bond and its properties.

1. Bond Type:
- Compounds with covalent bonds typically do not conduct electricity because they do not have free ions or electrons. Based on this information, the bond type in row 3 should be covalent since it is stated that it does not conduct electricity.

2. Melting Point:
- Compounds with covalent bonds usually have low melting points because the intermolecular forces between molecules are relatively weak compared to the strong electrostatic forces in ionic bonds or the delocalized electron sea in metallic bonds.

Putting these points together:

- Row 3 Bond Type: Covalent
- Conducts Electricity: No (already given)
- Melting Point: Low melting point

Therefore, the information that best fills the blanks in row 3 is:
- covalent bond and low melting point.
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