Answered

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A student investigated some properties of lead and recorded the findings in the table below.

\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{Property} & \multicolumn{1}{c|}{Description} \\
\hline color & dull gray \\
\hline density & [tex]$11.3 \, g/cm^3$[/tex] \\
\hline volume of sample & [tex]$3.00 \, cm^3$[/tex] \\
\hline melting point & [tex]$327^{\circ} C$[/tex] \\
\hline reaction with air & lead oxide forms on the surface \\
\hline electrical conductivity & conducts some electricity \\
\hline
\end{tabular}

Which statement is true with respect to the investigation?

A. The student investigated only the physical properties of lead.
B. The student investigated only the chemical properties of lead.
C. The student investigated more physical properties than chemical properties of lead.
D. The student investigated more chemical properties than physical properties of lead.

Sagot :

GinnyAnswer
Let's analyze the student's investigation of lead by categorizing each property as either physical or chemical.

1. Color - Physical property
2. Density - Physical property
3. Volume of sample - Physical property
4. Melting point - Physical property
5. Reaction with air - Chemical property
6. Electrical conductivity - Physical property

Now, count the number of physical and chemical properties:

- Physical properties: 5 (color, density, volume of sample, melting point, electrical conductivity)
- Chemical properties: 1 (reaction with air)

Comparing the counts:
- Physical properties: 5
- Chemical properties: 1

Thus, the statement that is true with respect to the investigation is:
"The student investigated more physical properties than chemical properties of lead."

So the answer is:
"The student investigated more physical properties than chemical properties of lead."
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