Physical and Chemical Properties Assessment

A student finds the mass and volume of four mystery liquids. The data is provided.

The student knows that the density of water is 1 g/mL. Which of the four mystery liquids can be correctly identified as water?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS1-2

Which of the following is good evidence that an unknown sample is a pure substance?

• 
  Multiple samples of the unknown substance melt at the same temperature.

• 
  Multiple samples of the  unknown substance melt at different temperatures.

The following liquids are poured into a glass jar. Which is the correct order, from bottom to top, of the column that would form?

• 
  Liquid C, Liquid A, Liquid B

• 
  Liquid C, Liquid B, Liquid A

• 
  Liquid B, Liquid A, Liquid C

• Liquid B, Liquid C, Liquid A

Tags

NGSS.MS-PS1-2

Which of the following are accurate headings for each column?

• 
  Column A = Physical Properties; Column B = Chemical Properties

• 
  Column A = Chemical Properties; Column B = Physical Properties

• 
  Column A = Observable Properties; Column B = Non-Observable Properties

• 
  Column A = Non-Observable Properties; Column B = Observable Properties

A table comparing four metals is provided.

A sample known to be one of the four listed in the table was heated to a temperature of 350ºC but remained a solid. The sample was found to have a density greater than 6 g/cm³ and to be a good conductor of electricity. Burning the sample produced a blue flame. Based on this information, what is the identity of this sample?

• Zinc

• Lead

• Tin

• Iron

Tags

NGSS.MS-PS1-2

An unknown substance has a volume of 50 cm^³ and a mass of 565 g. Based on the information provided in the table below, what is most likely the identity of this substance?

List 3 physical properties that can be used to describe substances.

Tags

NGSS.MS-PS1-4

How is a mixture different from pure substances?