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