ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¡°ÉúÃüÎü¹Ü¡±¿ÉÖ±½Ó½«ÎÛË®¾»»¯ÎªÒûÓÃË®£¬Ö÷Òª´¦Àí²½ÖèÓë×ÔÀ´Ë®µÄ¾»»¯¹ý³ÌÏàËÆ£¬ÈçÏÂͼËùʾ£º(¢ÛÖÐÀë×Ó½»»»Ê÷Ö¬µÄÖ÷Òª×÷ÓÃÊÇÈ¥³ýÖؽðÊôÀë×Ó¡¢Èí»¯Ë®ÖÊ)
(1)¢ÚÖлîÐÔÌ¿µÄ×÷ÓÃÊÇ____(Ìî×Öĸ¡£ÏÂͬ)£¬¢ÜÖг¬ÂËĤµÄ×÷ÓÃÊÇ____¡£
A£®È¥³ýÓк¦¾úºÍ²¿·Ö²¡¶¾ B£®Îü¸½ÔÓÖÊ C£®³ýÈ¥½Ï´óµÄ²»ÈÜÐÔÔÓÖÊ
(2)ÈôÎÞÉúÃüÎü¹Ü£¬È¡ÓúÓˮʱ£¬Òª½µµÍË®µÄÓ²¶ÈºÍɱÃð²¡Ô΢ÉúÎÉú»îÖг£²ÉÈ¡______·½·¨¡£
(3)ÓеĺÓË®³öÏÖË®»ªÏÖÏ󣬾¼ì²â·¢ÏÖÊǺÓË®Öк¬ÓÐÄòËØ¡¢ÁòËá¼Ø¡¢Á×Ëá¶þÇâ¼ØµÈ¶øµ¼Ö£¬ÉÏÊöÈýÖÖÎïÖÊÊôÓÚ¸´ºÏ·ÊµÄÊÇ___________¡£
(4)ÏÂÁÐͼ±ê±íʾ¡°¹ú¼Ò½ÚË®±êÖ¾¡±µÄÊÇ___________¡£
¡¾´ð°¸¡¿ B A Öó·Ð Á×Ëá¶þÇâ¼Ø(»òKH2PO4) B
¡¾½âÎö¡¿±¾Ì⿼²éÁËË®µÄ¾»»¯£¬Ó²Ë®ÓëÈíË®£¬³£¼û»¯·ÊµÄÖÖÀ࣬¼¸ÖÖ³£¼ûµÄÓ뻯ѧÓйصÄͼ±ê¡£ÄѶȲ»´ó£¬¸ù¾ÝÒÑÓеÄ֪ʶ½øÐнâ´ð¡£
£¨1£©Óɾ»»¯Ë®µÄ¹ý³Ì¿ÉÖª£¬ÆäÖв½Öè¢ÙµÄ»îÐÔÌ¿¾ßÓÐÎü¸½ÐÔ£¬×÷ÓÃÊÇÎü¸½ÔÓÖÊ£¬¹ÊÑ¡B£»¢ÜÖг¬ÂËĤµÄ×÷ÓÃÊÇÈ¥³ýÓк¦¾úºÍ²¿·Ö²¡¶¾£¬¹ÊÑ¡A£»
£¨2£©Ó²Ë®ÔÚÖó·Ð¹ý³ÌÖпÉת»¯³ÉÄÑÈÜÐԵĸÆþ»¯ºÏÎʹˮÈí»¯£¬Í¬Ê±»¹ÄÜɱÃð²¡Ô΢ÉúÎï¡£ÈôÎÞÉúÃüÎü¹Ü£¬È¡ÓúÓˮʱ£¬Òª½µµÍË®µÄÓ²¶ÈºÍɱÃð²¡Ô΢ÉúÎÉú»îÖг£²ÉÈ¡Öó·Ð·½·¨£»
£¨3£©ÄòËØÖк¬ÓеªÔªËØ£¬ÊôÓÚµª·Ê£»ÁòËá¼ØÖк¬ÓмØÔªËØ£¬ÊôÓڼطʣ»Á×Ëá¶þÇâ¼ØÖк¬ÓÐÁ×ÔªËØ¡¢¼ØÔªËØ£¬ÊôÓÚ¸´ºÏ·Ê£¬ËùÒÔÉÏÊöÈýÖÖÎïÖÊÊôÓÚ¸´ºÏ·ÊµÄÊÇÁ×Ëá¶þÇâ¼Ø(»òKH2PO4)£»
£¨4£©A¡¢Í¼ÖÐËùʾ±êÖ¾ÊÇÖйú½ÚÄܱêÖ¾£¬´íÎó£»B¡¢Í¼ÖÐËùʾ±êÖ¾Êǹú¼Ò½ÚË®±êÖ¾£¬ÕýÈ·£»C¡¢Í¼ÖÐËùʾ±êÖ¾ÊÇÎïÆ·»ØÊÕ±êÖ¾£¬´íÎó£»D¡¢Í¼ÖÐËùʾ±êÖ¾Êǵ±ÐÄ»ðÔÖ£¬´íÎó¡£¹ÊÑ¡B¡£
¡¾ÌâÄ¿¡¿ÈçͼÊÇa¡¢b¡¢cÈýÖÖÎïÖʵÄÈܽâ¶ÈÇúÏß¡£¸ù¾Ýͼ»Ø´ð£º
£¨1£©_____¡æʱ£¬aºÍcµÄÈܽâ¶ÈÏàµÈ¡£
£¨2£©t3¡æʱ£¬°Ñ20ga¡¢b¡¢cÈýÖÖÎïÖÊ·Ö±ð¼ÓÈëÊ¢ÓÐ50gË®µÄÉÕ±Öв»¶Ï½Á°è£¬ËùµÃÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊý´óС¹ØϵΪ_____£¨ÌîÑ¡Ïî×Öĸ£¬ÏÂͬ£©£»Èô½«Î¶ȽµµÍµ½t1¡æʱ£¬ÈÜÒºÖÊÁ¿µÄ´óС¹ØϵΪ_____¡£
A c>a£½bB b>a£½cC a>b>cD b>a>c
£¨3£©ÔÚt2¡æʱ£¬½«cÎïÖʵIJ»±¥ºÍÈÜÒº±äΪ±¥ºÍÈÜÒº£¬ÏÂÁÐÓйØ˵·¨²»ÕýÈ·µÄÊÇ_____£¨Ìî×Öĸ£©¡£
A ÈܼÁµÄÖÊÁ¿¿ÉÄܱäСB ÈÜÒºµÄÖÊÁ¿¿ÉÄܱä´ó
C ÈÜÖʵÄÖÊÁ¿·ÖÊýÒ»¶¨±ä´óD ÈÜÖʵÄÖÊÁ¿Ò»¶¨²»±ä
£¨4£©½«´¿¾»µÄÂÈ»¯ÄÆÅäÖƳÉÈÜÒº¡£20¡æʱ£¬Ïò4¸öÊ¢ÓÐ200gË®µÄÉÕ±ÖУ¬·Ö±ð¼ÓÈëÒ»¶¨ÖÊÁ¿µÄÂÈ»¯ÄƲ¢³ä·ÖÈܽ⡣4×éʵÑéÊý¾ÝÈçÏ£º
ʵÑéÐòºÅ | ¢Ù | ¢Ú | ¢Û | ¢Ü |
¼ÓÈëÂÈ»¯ÄƵÄÖÊÁ¿£¯g | 9 | 36 | 81 | 90 |
ÈÜÒºÖÊÁ¿£¯g | 209 | 236 | 272 | 272 |
Èô½«¢ÙÖеõ½µÄÈÜҺϡÊͳÉÖÊÁ¿·ÖÊýΪ0.9%µÄÉúÀíÑÎË®£¬Ðè¼ÓË®µÄÖÊÁ¿ÊÇ_____g¡£
¹ØÓÚÉÏÊöʵÑéµÄÐðÊöÕýÈ·µÄÊÇ_____£¨ÌîÐòºÅ£©¡£
a¡¢¢Ù¢ÚËùµÃÈÜÒºÊDz»±¥ºÍÈÜÒº
b¡¢¢Û¢ÜËùµÃÈÜÒºÖУ¬ÈÜÖʵÄÖÊÁ¿·ÖÊý²»ÏàµÈ
c¡¢20¡æʱ£¬200gË®ÖÐ×î¶àÈܽâÂÈ»¯ÄƵÄÖÊÁ¿Îª72g
d¡¢20¡æʱ£¬½«¢Ü¼ÌÐøºãÎÂÕô·¢100gË®£¬¹ýÂË£¬µÃµ½ÖÊÁ¿Îª36gµÄ¹ÌÌå
£¨5£©ÏÖÓÐÁ½ÖÖ½ðÊôµ¥ÖÊ×é³ÉµÄ»ìºÏÎï¡£Ïò100gijϡÑÎËáÖмÓÈë¸Ã»ìºÏÎ¼ÙÉèÄÜÓëËá·´Ó¦µÄµÄ½ðÊô¶¼ÄÜÈ«²¿·´Ó¦£©£¬»ìºÏÎïµÄÖÊÁ¿ÓëÉú³ÉÇâÆøµÄÖÊÁ¿¹ØϵÈçͼËùʾ¡£
ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ_____£¨ÌîÐòºÅ£©¡£
a¡¢Èô»ìºÏÎïΪZn¡¢Al£¬Ôòm¿ÉÄÜÊÇ0.2g
b¡¢Èô»ìºÏÎïΪZn¡¢Cu£¬ÔòmÒ»¶¨´óÓÚ0.2g
c¡¢Èô»ìºÏÎïΪFe¡¢Al£¬ÔòÏ¡ÑÎËáÖÐÈÜÖÊÖÊÁ¿·ÖÊý²»Ò»¶¨´óÓÚ7.3%
d¡¢Èô»ìºÏÎïΪFe¡¢Cu£¬mΪ0.1g£¬Ôò¸Ã»ìºÏÎïÖÐFeµÄÖÊÁ¿·ÖÊýÒ»¶¨ÊÇ50%