Measurement

According to the kinetic-molecular theory of matter, particles in a liquid

• are packed closely together in a regular array
• move slower as the temperature increases
• expand to fill their container
• are packed closely together, but are not confined to specific positions 

Which of the following is a heterogeneous mixture

• mortar( a mixture of calcium carbonate and sand)
• gasoline
• antifreeze(a mixture of water and ethylene glycerol)
• sodium chloride dissolved in water

A(n) _____ is a pure substance that is a compound that is composed of only one type of atom?

• element
• homogeneous mixture
• heterogeneous mixture
• particulate 

What is the correct symbol for Lead?

• L
• Ld
• Pb
• Pd

Whats is the correct symbol for phosphorus? 

• Pm
• P
• Po
• Pd

What is the name of the element with the symbol Ca?

• cobalt
• calcium
• carbon
• californium

Which term best describes carbon dioxide, CO2

• chemical compound
• none of the above
• element
• homogeneous mixture

All of the following are examples of physical properties EXCEPT

• gold is yellow in appearance
• aluminum oxidizes to form Al2O3
• Copper is ductile and malleable
• Mercury is a liquid at room temp.

Which of the following is an extensive property

• volume
• density
• melting point
• boiling point

The density of liquid mercury is 13.5 g/cm(cubed). What mass of mercury will fill a 0.500 L container?

• 3.70 X 10^-2 g
• 6.75 X 10^3 g
• 27.0 g
• 37.0 g