A) closely packed B) unevenly distributed C) held in fixed positions D) very far from one another
A) having definite shape and definite volume B) having lost electrons owing to energy content 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) It is changed into matter B) The energy remains unchanged. C) It is destroyed D) It changes form, but is neither destroyed nor increased
A) vitamin C (ascorbic acid) B) bread dough C) vinegar (5% acetic acid) D) seawater
A) any substance with a uniform composition B) a combination of pure substances bonded chemically 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) a compound. B) chemically bonded C) homogeneous D) heterogeneous
A) element table B) chemical chart C) random list D) periodic chart
A) granite B) a gold ring C) salt water D) sucrose
A) air B) orange juice C) raw milk D) marble
A) actinides B) groups or families C) periods D) rows of elements
A) very hard B) easy to break down into its components C) a good electrical and heat conductor D) very brittle
A) unreactive B) lanthanides C) from outer space D) semiconductors
A) malleable B) brittle C) a good conductor D) used to make jewelry |