A) very far from one another
B) closely packed
C) held in fixed positions
D) unevenly distributed

A) having lost electrons owing to energy content
B) having neither a definite shape nor a definite volum
C) having a definite volume but not a definite shape
D) having definite shape and definite volume

A) atoms lose electrons
B) atoms form molecules
C) atomic nuclei break down
D) atoms gain electrons

A) It changes form, but is neither destroyed nor increased
B) It is destroyed
C) The energy remains unchanged.
D) It is changed into matter

A) seawater
B) vitamin C (ascorbic acid)
C) bread dough
D) vinegar (5% acetic acid)

A) a combination of pure substances bonded chemically
B) any substance with a uniform composition
C) a blend of any two or more kinds of matter, as long as each maintains its own unique properties
D) any group of elements that are chemically bonded to one another

A) a compound.
B) chemically bonded
C) homogeneous
D) heterogeneous

A) element table
B) random list
C) periodic chart
D) chemical chart

A) a gold ring
B) salt water
C) sucrose
D) granite

A) orange juice
B) air
C) raw milk
D) marble

A) rows of elements
B) periods
C) actinides
D) groups or families

A) very brittle
B) a good electrical and heat conductor
C) very hard
D) easy to break down into its components

A) from outer space
B) unreactive
C) semiconductors
D) lanthanides

A) brittle
B) a good conductor
C) used to make jewelry
D) malleable