Questions: In the table below, there are descriptions of an experiment on samples of three different chemical compounds. Decide whether the compound is ionic or molecular, if you can. If there is not enough information to decide, choose can't decide in the third column. - Compound 1 is a dull white smooth solid which does not conduct electricity. Applying an ordinary laboratory burner to the material only makes the substance hot, it does not otherwise change. In fact, the substance can't be melted or even softened by any ordinary laboratory equipment. (ionic) - Compound 2 is a soft waxy white solid that can be easily shaped and molded by hand. When the flame of an ordinary laboratory burner is held about 10 cm away from the solid, it rapidly and extensively melts into a clear liquid. (can't decide) - Compound 3 is a yellow-white solid. When heated to melting, it forms an oily yellow liquid, which is a good electrical insulator. (can't decide)

In the table below, there are descriptions of an experiment on samples of three different chemical compounds. Decide whether the compound is ionic or molecular, if you can. If there is not enough information to decide, choose can't decide in the third column. - Compound 1 is a dull white smooth solid which does not conduct electricity. Applying an ordinary laboratory burner to the material only makes the substance hot, it does not otherwise change. In fact, the substance can't be melted or even softened by any ordinary laboratory equipment. (ionic) - Compound 2 is a soft waxy white solid that can be easily shaped and molded by hand. When the flame of an ordinary laboratory burner is held about 10 cm away from the solid, it rapidly and extensively melts into a clear liquid. (can't decide) - Compound 3 is a yellow-white solid. When heated to melting, it forms an oily yellow liquid, which is a good electrical insulator. (can't decide)
Transcript text: In table below, there are descriptions of an experiment on samples of three different chemical compounds. Decide whether the compound is ionic or molecular, if you can. If there is not enough information to decide, choose can't decide in the third column. \begin{tabular}{|c|l|l|} \hline compound & \multicolumn{1}{|c|}{ description } & ionic or molecular? \\ \hline 1 & \begin{tabular}{l} Compound 1 is a dull white smooth solid which does not conduct \\ electricity. Applying an ordinary laboratory burner to the material only \\ makes the substance hot, it does not otherwise change. In fact, the \\ substance can't be melted or even softed by any ordinary laboratory \\ equipment. \end{tabular} & ionic \\ \hline 2 & \begin{tabular}{l} Compound 2 is a soft waxy white solid that can be easily shaped and \\ molded by hand. When the flame of an ordinary laboratory burner is held \\ about 10 cm away from the solid, it rapidly and extensively melts into a \\ clear liquid. \end{tabular} & (can't decide) \\ \hline 3 & \begin{tabular}{l} Compound 3 is a yellow-white solid. When heated to melting, it forms an \\ oily yellow liquid, which is a good electrical insulator. \end{tabular} & (can't decide) \\ \hline \end{tabular}
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Solution

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Solution Steps

Step 1: Analyze Compound 1

Compound 1 is described as a dull white smooth solid that does not conduct electricity and cannot be melted or softened by ordinary laboratory equipment. These characteristics are typical of ionic compounds, which are generally solid at room temperature, have high melting points, and do not conduct electricity in solid form.

Step 2: Analyze Compound 2

Compound 2 is a soft, waxy white solid that can be easily shaped and molded by hand. It melts rapidly when exposed to a flame. These properties suggest that it could be a molecular compound, as molecular compounds often have lower melting points and can be soft or waxy. However, without additional information about its electrical conductivity or specific chemical composition, we cannot definitively classify it as ionic or molecular.

Step 3: Analyze Compound 3

Compound 3 is a yellow-white solid that forms an oily yellow liquid when melted, which is a good electrical insulator. The fact that it is a good electrical insulator in liquid form suggests it might be a molecular compound, as ionic compounds typically conduct electricity when melted. However, without more information, such as its behavior in solution or specific chemical composition, we cannot make a definitive classification.

Final Answer

  • Compound 1: \(\boxed{\text{ionic}}\)
  • Compound 2: \(\boxed{\text{can't decide}}\)
  • Compound 3: \(\boxed{\text{can't decide}}\)
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