1 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/figure_1_15.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (64.0K)</a>]]> A) change homogeneous mixtures to heterogeneous mixtures. B) change pure substances to elements C) change mixtures to pure substances D) change compounds to elements 2 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/figure_1_25.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (51.0K)</a>]]> A) decreases B) decreases if the temperature exceeds 100° C C) increases D) remains constant 3 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/table_1_4.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (62.0K)</a>]]> A) the balsa wood will sink, and the cork will float B) the cork will sink, and the balsa wood will float C) both will float D) both will sink 4 A) changes to a gas easily B) condenses C) decomposes readily D) freezes readily 5 A) The ash has the same mass as the log, although a large percentage of it blows away. B) The law of conservation of mass applies to changes of state but not to chemical reactions. C) The law of conservation of mass applies to substitution and displacement reactions, but not to combustion reactions. D) The masses of the gases and water vapor released into the air by the combustion reaction plus the mass of ash equal the mass of the log before burning.
.
