ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿»¯Ñ§ÊµÑéС×éͬѧΪÑо¿Ä³¹«¹²³¡ËùÌúÖÆ»¤À¸ÐâÊ´µÄ³Ì¶È£¬½« 6.4g ÒÑÉúÐâµÄÌúƬ£¬·ÅÈëһŨ¶ÈµÄÏ¡ÑÎËáÖгä·Ö·´Ó¦£¬²âµÃ²úÉúµÄÆøÌåÖÊÁ¿ÓëÏ¡ÑÎËáµÄÖÊÁ¿¹ØϵÈçÏÂͼ Ëùʾ£¨¼ÙÉèÌúƬ³ýÓÐ Fe2O3 Í⣬²»º¬ÆäËûÔÓÖÊ£©¡£
£¨1£©Éú³ÉÇâÆøµÄÖÊÁ¿Îª_____g¡£
£¨2£©ÇóÏ¡ÑÎËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý_______£¿Çó¸ÃÌúƬÖÐ Fe2O3 µÄÖÊÁ¿·ÖÊýΪ¶àÉÙ_________£¿£¨Ð´³ö¼ÆËã¹ý³Ì£¬½á¹û¾«È·µ½µ½0.1%£©
¡¾´ð°¸¡¿0.2g 7.3% 12.5%
¡¾½âÎö¡¿
Ñõ»¯ÌúºÍÏ¡ÑÎËá·´Ó¦Éú³ÉÂÈ»¯ÌúºÍË®£¬ÌúºÍÏ¡ÑÎËá·´Ó¦Éú³ÉÂÈ»¯ÑÇÌúºÍÇâÆø¡£
£¨1£©ÓÉͼ¿ÉÖª£¬Éú³ÉÇâÆøµÄÖÊÁ¿Îª0.2g¡£
£¨2£©ÉèÏ¡ÑÎËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪx
ºÍÌú·´Ó¦µÄÏ¡ÑÎËáµÄÖÊÁ¿Îª
ÉèÌúƬÖÐ Fe2O3 µÄÖÊÁ¿Îªy
¹ÊÌúƬÖÐ Fe2O3 µÄÖÊÁ¿·ÖÊýΪ
´ð£ºÏ¡ÑÎËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ7.3%£¬ÌúƬÖÐ Fe2O3 µÄÖÊÁ¿·ÖÊýΪ12.5%¡£
¡¾ÌâÄ¿¡¿ÄÜÔ´¡¢Ê³Æ·½¡¿µ¡¢»·¾³ÎÊÌâÊÇÈ«Çò»¯µÄÈȵ㡣ÏÂÁй۵ã»ò×ö·¨ÍêÈ«ÕýÈ·µÄÊÇ£¨ £©
A.±£»¤¿ÕÆø | B.°®»¤Ë®×ÊÔ´ |
a.½ûȼÑÌ»¨±¬Öñ-½µµÍ b. ÅÅ·ÅÔö¶à-ÐγÉËáÓê | a.ÓÃÌÔÃ×Ë®½½»¨-½ÚÔ¼ÓÃË® b.»îÐÔÌ¿¾»Ë®-ÀûÓÃÎü¸½ÐÔ |
C.ʳƷ½¡¿µ | D.ÄÜÔ´ÀûÓà |
a.±£Ïʺ£²úÆ·-Óü×È©ÈÜÒº½þÅÝ b.ÑÓ³¤Ê³Æ·±£ÖÊÆÚ-Ìí¼Ó´óÁ¿µÄ·À¸¯¼Á | a.·¢ÏÖ´ó½¿Éȼ±ù-»º½âÄÜԴΣ»ú b.Íƹ㳵ÓÃÒÒ´¼ÆûÓÍ-ÁãβÆøÎÛȾ |
A.AB.BC.CD.D