MostlyProperties
View Table 1
Which substance in the table has the lowest melting point?
A. water
B. Oxygen.
C. Sucrose
D. Chlorine
B. Oxygen
View Figure 25
Which indicator is green in a pure water solution?
A. beets
B. red cabbage
C. apple skin
D. blueberries
D. blueberries
Which statement is true of the temperature 0 K?
A. It's equal to -273oF
B. It's equal to 273oC
C. It's the freezing point of water
D. It's the lowest possible temperature
D. It's the lowest possible temperature
Which state(s) of matter are practically incompressible?
A. Liquid state
B. Both solid & liquid states
C. Gaseous state
D. Solid state
B. Both solid & liquid states
In which state(s) of matter are the particles packed closely together in an orderly arrangement?
A. Liquid state
B. both solid and liquid states
C. Gaseous state
D. Solid state
D. Solid state
View table 1
A chemist has one of the substances above but is not sure what it is because it is in a sealed container. He heats the substance until it melts. He tells a coworker that he had to heat the substance to a temperature in excess of 175oC before he noticed a physical change. Which substance is most likely in the chemist’s container?
A. chlorine
B. water
C. Mercury
D. Sucrose
D. Sucrose
An aqueous solution of sodium chloride
A. has a slippery feel
B. has a sour taste
C. is acidic
D. is neutral
D. Is neutral
A. 717.674 K
B. 444.674 K
C. 171.674 K
D. 0 K
A. 717.674 K
Substances in which of the following state(s) of matter take the shape of their container?
A. solids
B. liquids
C. gases
D. both liquids & gases
D. both liquids & gases
Gases are easier to compress than liquids because particles in gases are
A. Less brittle
B. Free to flow from 1 location to another
C. Farther apart
D. Smaller
C. Farther apart
Which of these is a pure substance?
A. Tea
B. Brass
C. Ocean water
D. Carbon dioxide
D. Carbon dioxide
What forms when equal quantities of a strong acid & a strong base react?
A. Basic solution
B. Acidic solution
C. Salt & water
D. Salt hydrolysis
C. Salt & water
Beryllium metal melts at 1551 K. What is the melting point of beryllium on the Celsius temperature scale?
A. 1278oC
B. 1424oC
C. 1551oC
D. 1824oC
A. 1278oC
The correct order for MOST freedom of movement of particles to LEAST freedom of movement is
A. solids, liquids, gases
B. gases, liquids, solids
C. liquids, gases, solids
D. liquids, solids, gases
B. gases, liquids, solids.
When a substance is heated, it will usually expand because the particles
A. become larger.
B. form a different arrangement.
C. Collide with each other with greater intensity.
D. Repel each other more.
C. Collide with each other with greater intensity.
Which property would be most useful for determining whether a piece fo metal is iron or lead?
A. ability to conduct electric current
B. Solubility in water
C. Size of piece of metal
D. Attraction to a magnet
D. Attraction to a magnet
Which of the following statements accurately describes acids and bases?
A. Acids are hydrogen-ion donors and bases are hydrogen-ion acceptors
B. Acids donate electron pairs to bases
C. Hydrogen is found in acids and not in bases
D. water can act as an acid, but not a base, in an acid-base reaction
A. Acids are hydrogen-ion donors and bases are hydrogen-ion acceptors
Normal body temperature is 98.6oF, or 310 K. Express this temperature on the Celsius temperature scale.
A. 37oC
B. 73oC
C. 310oC
D. 583oC
A. 37oC
Which of the following BEST describes how the particles in a solid move?
A. Particles don't move at all
B. Particles rotate, but have no sideways motion
C. Particles vibrate in place
D. Particles slide past one another in random patterns.
C. Particles vibrate in place
As the temperature of a substance increases, the density of the substance usually
A. increases
B. decreases
C. remains the same in solids & liquids, but decreases in gases
D. increases in solids & decreases in liquids & gases
C. remains the same in solids & liquids, but decreases in gases
Which description describes a physical change of matter?
A. Glass beaker is dropped & shattered into tiny glass pieces
B. Shiny new penny is immersed in water for 24 hours & allowed to corrode
C. Newspaper is thrown into a campfire
D. Glass of milk is spoiled
A. Glass beaker is dropped & shattered into tiny glass pieces
To make a softball bat, a block of wood is carefully crafted into a shape that will allow a batter to best apply force on a softball. All of the following describe physical changes that may be used in the process of making a softball bat, except
A. Sanding
B. Carving
C. Burning
D. Painting
A student measures the volume & mass of a piece of plastic foam. The volume was 0.3 cubic meters and the mass was 8.4 kilograms. What is the density of the foam in g/cm3?
A. 0.028 g/cm3
B. 0.28 g/cm3
C. 2.8 g/cm3
D. 28 g/cm3
When copper and sulfur combine to form copper sulfide
A. physical change
B. change of state
C. change in mass
D. chemical change
D. chemical change
Which of the following statements about the atoms & molecules in all 3 states of matter is NOT true?
A. Particles of matter are in constant motion
B. Spaces exists between particles
C. Adding heat increases the size of the particles
D. Particles of matter are too small to be seen with the unaided eye
C. Adding heat increases the size of the particles