PowerPoint PresentationWhich of the following is correct for the material pictured?
A gaseous pure substance
A liquid pure substance
Which of the following is correct for the material pictured?
A gaseous pure substance
A liquid pure substance
Sweat
Sweat
Seawater
Seawater
Which of the following mixtures is separated best by decanting?
Two aqueous liquids
A volatile liquid and a non-volatile liquid
Two solids
Answer: b
Which of the following mixtures is separated best by decanting?
Two aqueous liquids
A volatile liquid and a non-volatile liquid
Two solids
Answer: b
Freezing water to make ice cubes
Dry ice evaporating at room temperature
Toasting a piece of bread
Dissolving sugar in hot coffee
Crushing an aluminum can
Freezing water to make ice cubes
Dry ice evaporating at room temperature
Toasting a piece of bread
Dissolving sugar in hot coffee
Crushing an aluminum can
Squeezing oranges to make orange juice
Melting butter for popcorn
Separating sand from gravel
and oxygen
Answer: d
Squeezing oranges to make orange juice
Melting butter for popcorn
Separating sand from gravel
and oxygen
Answer: d
© 2014 Pearson Education, Inc.
Which of the following would NOT be considered an intensive property describing an unknown sample?
It is a solid at 25 °C.
It has a density of 1.38 g/cm3.
It melts at 62.0 ° C.
It has a volume of 0.52 cm3.
It is shiny.
© 2014 Pearson Education, Inc.
Which of the following would NOT be considered an intensive property describing an unknown sample?
It is a solid at 25 °C.
It has a density of 1.38 g/cm3.
It melts at 62.0 ° C.
It has a volume of 0.52 cm3.
It is shiny.
elemental.
molecular.
The state of matter in which molecules are widely spaced is
Answer: C
elemental.
molecular.
The state of matter in which molecules are widely spaced is
Answer: C
Diamond
Salt
Gold
Water
Soot
Which of the following is an example of an amorphous solid?
Answer: E
Diamond
Salt
Gold
Water
Soot
Which of the following is an example of an amorphous solid?
Answer: E
Answer: A
Answer: A
Answer: D
Answer: D
Answer: E
Answer: E
Answer: D
Answer: D
Answer: C
Answer: C
The ability of iron to rust
Flammability of gasoline
All of these are chemical properties.
Which of the following is NOT a chemical property?
Answer: A
The ability of iron to rust
Flammability of gasoline
All of these are chemical properties.
Which of the following is NOT a chemical property?
Answer: A
Baking a cake
Answer: D
Baking a cake
Answer: D
The conversion of compounds into elements is a physical change.
Combining sodium metal and chlorine gas to form sodium chloride is a chemical change.
Photosynthesis is an example of a chemical change.
Distilling alcohol from water is a physical change.
Which of the following statements is FALSE?
Answer: B
The conversion of compounds into elements is a physical change.
Combining sodium metal and chlorine gas to form sodium chloride is a chemical change.
Photosynthesis is an example of a chemical change.
Distilling alcohol from water is a physical change.
Which of the following statements is FALSE?
Answer: B
anything that has mass and occupies space.
a substance composed of two or more elements.
a homogeneous mixture.
Answer: B
anything that has mass and occupies space.
a substance composed of two or more elements.
a homogeneous mixture.
Answer: B
Answer: A
Answer: A
Copper metal is rolled into wire.
Ice melts.
Answer: E
Copper metal is rolled into wire.
Ice melts.
Answer: E