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?
Which is an intensive property of a substance?
Which of these is a chemical property of a substance?
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 is an example of a chemical change?
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 statement describes a physical property of copper?
A student performs the following experiment.Step 1: She pours a colorless solution into a beaker that contains another colorless liquid. Yellow particles appear in the liquid.Step 2: She lets the yellow particles settle in the beaker and then separates the colorless liquid by decantation.What has most likely occurred in the beaker?
To observe a [BLANK] property of a substance, the substance must interact with another substance, such as when gasoline burns or when sodium metal reacts with water.
Which term refers to a property that depends only on the amount of a substance?
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