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Sagot :
To identify the property that Alisha placed in the wrong column, we need to understand the difference between quantitative and qualitative properties.
Quantitative properties are those that can be measured and expressed numerically. Examples include density, boiling point, and melting point.
Qualitative properties describe characteristics that are observed but not measured. Examples include terms like soft, hard, color, and state of matter at room temperature.
Now, let's examine the table provided:
[tex]\[ \begin{tabular}{|c|c|} \hline \textbf{Quantitative} & \textbf{Qualitative} \\ \hline Density: 11.34 g / cm ^3 & Soft \\ \hline Solid at room temperature & \begin{tabular}{c} Dull gray at room temperature \end{tabular} \\ \hline Boiling point: 174.9^{\circ} C & Malleable \\ \hline Melting point: 327.5^{\circ} C & Corrosion-resistant \\ \hline \end{tabular} \][/tex]
Reviewing each entry:
1. Quantitative - Density: 11.34 g / cm^3
- Correct. This is measurable and numerical.
2. Quantitative - Solid at room temperature
- Incorrect. The state of matter at room temperature is a qualitative property since it is an observation, not a measurement.
3. Quantitative - Boiling point: 174.9°C
- Correct. This is a specific numerical measurement.
4. Quantitative - Melting point: 327.5°C
- Correct. This is a specific numerical measurement.
5. Qualitative - Soft
- Correct. This is a descriptive observation.
6. Qualitative - Dull gray at room temperature
- Correct. This is a descriptive observation.
7. Qualitative - Malleable
- Correct. This is a descriptive observation.
8. Qualitative - Corrosion-resistant
- Correct. This is a descriptive observation.
Therefore, the property Alisha placed in the wrong column is:
Solid at room temperature.
This property should be in the Qualitative column, as it describes the observed state of lead at room temperature without involving quantitative measurement.
Quantitative properties are those that can be measured and expressed numerically. Examples include density, boiling point, and melting point.
Qualitative properties describe characteristics that are observed but not measured. Examples include terms like soft, hard, color, and state of matter at room temperature.
Now, let's examine the table provided:
[tex]\[ \begin{tabular}{|c|c|} \hline \textbf{Quantitative} & \textbf{Qualitative} \\ \hline Density: 11.34 g / cm ^3 & Soft \\ \hline Solid at room temperature & \begin{tabular}{c} Dull gray at room temperature \end{tabular} \\ \hline Boiling point: 174.9^{\circ} C & Malleable \\ \hline Melting point: 327.5^{\circ} C & Corrosion-resistant \\ \hline \end{tabular} \][/tex]
Reviewing each entry:
1. Quantitative - Density: 11.34 g / cm^3
- Correct. This is measurable and numerical.
2. Quantitative - Solid at room temperature
- Incorrect. The state of matter at room temperature is a qualitative property since it is an observation, not a measurement.
3. Quantitative - Boiling point: 174.9°C
- Correct. This is a specific numerical measurement.
4. Quantitative - Melting point: 327.5°C
- Correct. This is a specific numerical measurement.
5. Qualitative - Soft
- Correct. This is a descriptive observation.
6. Qualitative - Dull gray at room temperature
- Correct. This is a descriptive observation.
7. Qualitative - Malleable
- Correct. This is a descriptive observation.
8. Qualitative - Corrosion-resistant
- Correct. This is a descriptive observation.
Therefore, the property Alisha placed in the wrong column is:
Solid at room temperature.
This property should be in the Qualitative column, as it describes the observed state of lead at room temperature without involving quantitative measurement.
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