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