Changes in Matter Answers

Which list includes only physical properties?

Which is an intensive property of a substance?

Which of these is a chemical property of a substance?

A geochemist examines a piece of metal that he found in the soil. He performs tests to identify the metal from its density, electrical conductivity, and melting point. Which statement best describes his investigation?

Which of these is an example of a physical change?

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?

Which term refers to a property that depends only on the amount of a substance?

Which of these is an example of investigating an intensive property?

Which of these is an extensive property of a substance?

The table below shows the freezing points of four substances.SubstanceFreezing point (°C)benzene5.50water0.00butane–138nitrogen–210.The substances are placed in separate containers at room temperature, and each container is gradually cooled. Which of these substances will solidify before the temperature reaches 0°C?