A) held in fixed positions B) closely packed C) very far from one another D) unevenly distributed
A) having neither a definite shape nor a definite volum B) having lost electrons owing to energy content C) having a definite volume but not a definite shape D) having definite shape and definite volume
A) atoms form molecules B) atoms lose electrons C) atoms gain electrons D) atomic nuclei break down
A) It is destroyed B) It is changed into matter C) The energy remains unchanged. D) It changes form, but is neither destroyed nor increased
A) vitamin C (ascorbic acid) B) bread dough C) seawater D) vinegar (5% acetic acid)
A) a combination of pure substances bonded chemically B) any substance with a uniform composition C) any group of elements that are chemically bonded to one another D) a blend of any two or more kinds of matter, as long as each maintains its own unique properties
A) heterogeneous B) chemically bonded C) homogeneous D) a compound.
A) periodic chart B) chemical chart C) element table D) random list
A) granite B) salt water C) a gold ring D) sucrose
A) raw milk B) air C) marble D) orange juice
A) rows of elements B) actinides C) groups or families D) periods
A) very brittle B) very hard C) a good electrical and heat conductor D) easy to break down into its components
A) semiconductors B) from outer space C) unreactive D) lanthanides
A) used to make jewelry B) brittle C) malleable D) a good conductor |