Question

17£®ÔÚºê¹Û¡¢Î¢¹ÛºÍ·ûºÅÖ®¼ä½¨Á¢ÁªÏµÊÇ»¯Ñ§Ñ§¿ÆµÄÌص㣮
£¨1£©±£³ÖÇâÆø»¯Ñ§ÐÔÖʵÄ×îСÁ£×ÓÊÇÇâÆø·Ö×Ó£®
£¨2£©ÈçͼÊÇþԪËغͷúÔªËØÔÚÔªËØÖÜÆÚ±íÖеÄÐÅÏ¢£¬ÓÉ´ËÐÅÏ¢µÃ³ö£º
¢Ùþԭ×ӵĺËÍâµç×ÓÊýÊÇ12£»¢ÚþԪËØÓë·úÔªËØ×î±¾ÖʵÄÇø±ðÊÇÖÊ×ÓÊý²»Í¬£»¢ÛÓÉþԪËØÓë·úÔªËØ×é³É·ú»¯Ã¾µÄ»¯Ñ§Ê½ÎªMgF₂£®
£¨3£©A¡¢B¡¢C¡¢D±íʾËÄÖÖÎïÖÊ£¬²¿·ÖÎïÖʵÄ΢¹ÛʾÒâͼ¼û±í£¬AºÍBÔÚÒ»¶¨Ìõ¼þÏ·´Ó¦Éú³ÉCºÍD£®

ÎïÖÊ	A	B	C	D
΢¹ÛʾÒâͼ	´¿¾»Îï

Çë»Ø´ðÏÂÁÐÎÊÌ⣺
¢ÙÔÚB¡¢C¡¢DÖÐÊôÓÚµ¥ÖʵÄÊÇO₂£¨Ìѧʽ£©£®
¢ÚÈôÒ»¶¨ÖÊÁ¿µÄ´¿¾»ÎïAºÍ48gµÄBÇ¡ºÃÍêÈ«·´Ó¦£¬¿ÉÉú³É44gCºÍ27gD£¬ÔòAµÄ»¯Ñ§Ê½ÊÇC₂H₆O£®

Answer 1

·ÖÎö £¨1£©¸ù¾ÝÇâÆøÊÇÓÉÇâÆø·Ö×Ó¹¹³ÉµÄ£¬ËùÒÔ±£³ÖÇâÆø»¯Ñ§ÐÔÖʵÄ×îСÁ£×ÓÊÇÇâÆø·Ö×Ó½øÐнâ´ð£»
£¨2£©¸ù¾ÝÔªËØÖÜÆÚ±íÖеÄÐÅÏ¢¿É֪þԭ×ӵĺËÍâµç×ÓÊý=þԭ×ÓµÄÔ­×ÓÐòÊý½øÐнâ´ð£»
£¨3£©¸ù¾Ý»¯Ñ§·´Ó¦Ç°ºó£¬ÔªËصÄÖÖÀ಻±ä£¬Ô­×ÓµÄÖÖÀà¡¢×ܸöÊý²»±ä£®²»Í¬ÑÕÉ«µÄСÇò´ú±íµÄÔ­×Ó¼°Ô­×ӵĸöÊýÀ´ÊéдÎïÖʵĻ¯Ñ§Ê½½øÐнâ´ð£®

½â´ð ½â£º
£¨1£©ÇâÆøÊÇÓÉÇâÆø·Ö×Ó¹¹³ÉµÄ£¬ËùÒÔ±£³ÖÇâÆø»¯Ñ§ÐÔÖʵÄ×îСÁ£×ÓÊÇÇâÆø·Ö×Ó£»
£¨2£©¢ÙþԪËغͷúÔªËØÔÚÔªËØÖÜÆÚ±íÖеÄÐÅÏ¢£®ÓÉ´ËÐÅÏ¢µÃ³öþԭ×ӵĺËÍâµç×ÓÊý=þԭ×ÓµÄÔ­×ÓÐòÊý¿ÉÖª£¬Ã¾Ô­×ӵĺËÍâµç×ÓÊýÊÇ12£»
¢ÚþԪËØÓë·úÔªËØ×î±¾ÖʵÄÇø±ðÊÇÖÊ×ÓÊý£¨»òºËµçºÉÊý£©²»Í¬£»
¢ÛÓÉþԪËØÓë·úÔªËØ×é³É·ú»¯Ã¾µÄ»¯Ñ§Ê½ÎªMgF₂£»
£¨3£©¸ù¾Ý²»Í¬ÑÕÉ«µÄÇò´ú±íµÄÔ­×Ó¿ÉÖªBÎïÖʵÄÿ¸ö·Ö×ÓÖк¬ÓÐ2¸öÑõÔ­×Ó£¬ËùÒÔBÎïÖÊΪÑõÆø£»CÎïÖʵÄÿ¸ö·Ö×ÓÖк¬ÓÐ1¸ö̼ԭ×ÓºÍ2¸öÑõÔ­×Ó£¬ËùÒÔΪ¶þÑõ»¯Ì¼£»DÎïÖʵÄÿ¸ö·Ö×ÓÖк¬ÓÐ1¸öÑõÔ­×ÓºÍ2¸öÇâÔ­×Ó£¬ËùÒÔΪˮ£®
¢ÙBÊÇÑõÆø£¬ÊôÓÚµ¥ÖÊ£»
CÊǶþÑõ»¯Ì¼£¬DÊÇË®£¬¶¼ÊôÓÚÑõ»¯Î
¢Ú¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ¿ÉÖª£¬²Î¼Ó·´Ó¦µÄAµÄÖÊÁ¿Îª£º44g+27g-48g=23g£¬
44g¶þÑõ»¯Ì¼ÖÐ̼ԪËصÄÖÊÁ¿Îª£º44g¡Á$\frac{12}{44}$¡Á100%=12g£¬ÑõÔªËصÄÖÊÁ¿Îª£º44g-12g=32g£»                                       
27gË®ÖÐÇâÔªËصÄÖÊÁ¿Îª£º27g¡Á$\frac{2}{18}$¡Á100%=3g£¬ÑõÔªËصÄÖÊÁ¿Îª£º27g-3g=24g£»
ÔòAÖÐÑõÔªËصÄÖÊÁ¿Îª£º23g-12g-3g=8g£¬
¼´AÖк¬ÓÐ12g̼ԪËØ£¬3gÇâÔªËØ£¬8gÑõÔªËØ£¬Ì¼Ô­×Ó¡¢ÇâÔ­×Ó¡¢ÑõÔ­×ÓµÄÏà¶Ô¸öÊý±ÈΪ£º$\frac{12g}{12}£º$$\frac{3g}{1}$£º$\frac{8g}{16}$=2£º6£º1£¬¼´AµÄ»¯Ñ§Ê½ÎªC₂H₆O£®
¹Ê´ð°¸Îª£º£¨1£©ÇâÆø·Ö×Ó£» £¨2£©¢Ù12£»¢ÚÖÊ×Ó£»¢ÛMgF₂£»£¨3£©O₂£»C₂H₆O£®

µãÆÀ ±¾Ì⿼²éÁËÓÃ΢¹ÛÄ£ÐÍʾÒâͼ±íʾ»¯Ñ§·´Ó¦µÄ¹ý³Ì£¬Íê³É´ËÌ⣬¿ÉÒÔÒÀ¾Ý»¯Ñ§·´Ó¦µÄʵÖʽáºÏÖÊÁ¿Êغ㶨ÂɽøÐзÖÎö£®