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