A student investigated some properties of lead and recorded the findings in the table below.PropertyObservationcolordull graydensity11.3 g/cm3volume of sample3.00 cm3melting point327°Creaction with airlead oxide forms on the surfaceelectrical conductivityconducts some electricityWhich statement is true with respect to the investigation?

Color, density, volume, melting point, and electrical conductivity are physical properties because they can be observed or measured without changing lead into a different substance. Reaction with air is a chemical property because lead oxide forms, creating a new substance. The student recorded five physical properties and one chemical property, so more physical properties were investigated. The correct choice is C, “The student investigated more physical properties than chemical properties of lead.”

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