1 2+ and O2- ?<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602893/table_5_1.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"> (45.0K)</a>]]> A) Mg2 O B) MgO C) Mg2 O2 D) MgO2 2 2 ?<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/Figure_5_19.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"> (35.0K)</a>]]> A) nitrogen monoxide B) dinitrogen oxide C) nitrogen dioxide D) dinitrogen monoxide 3 2 is a solid at room temperature and Br2 is a liquid. What is the state of the other five nonmetal diatomic elements at room temperature?A) gas B) liquid C) solid D) plasma 4 A) negative eight B) positive one C) positive eight D) zero 5 A) 2+ B) 6- C) 1+ D) 4- 6 A) CO B) CN- C) NO2- D) PO43- 7 A) SO3 B) S3 O C) SO3 2- D) SO 8 5 H12 is the formula for the hydrocarbon __________.A) carbon hydride B) methane C) pentane D) hexane 9 A) magnesium hydroxide B) manganese hydroxide C) magnesium oxide D) magnesium hydrade 10 A) K2 S B) KS C) KS2 D) K2 SO4
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