ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÈçͼΪ¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖʵÄÈܽâ¶ÈÇúÏß¡£»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©PµãµÄÒâÒåÊÇ_____¡£
£¨2£©ÒªÊ¹½Ó½ü±¥ºÍµÄ¼×ÈÜÒº±ä³É±¥ºÍÈÜÒº£¬¿É²ÉÓõķ½·¨ÓÐ_____£¨Ð´³öÒ»ÖÖ£©£¬µ±¼×Öк¬ÓÐÉÙÁ¿ÒÒʱ£¬¿É²ÉÓÃ_____µÄ·½·¨Ìá´¿¼×¡£
£¨3£©t2¡æʱ£¬Ïò30g¼×ÎïÖÊÖмÓÈë50gË®£¬³ä·ÖÈܽâºó£¬ËùµÃÈÜÒºÖÊÁ¿Îª_____£¬½«ÆäÉý¸ßµ½t3¡æʱ£¬ËùµÃÈÜÒºÖÐÈÜÖʺÍÈÜÒºÖÊÁ¿±ÈΪ_____¡£
£¨4£©t4¡æʱ£¬°ÑµÈÖÊÁ¿µÄ¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖÊ·Ö±ðÅäÖƳɱ¥ºÍÈÜÒº£¬ËùµÃÈÜÒºÖÊÁ¿ÓÉ´óµ½Ð¡µÄ˳ÐòΪ_____¡£
£¨5£©½«t4¡æʱ¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖʵı¥ºÍÈÜÒº½µÎÂÖÁt1¡æ£¬ËùµÃÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýÓÉ´óµ½Ð¡µÄ˳ÐòΪ_____¡£
¡¾´ð°¸¡¿t2¡æʱ£¬¼×¡¢±ûÁ½ÖÖÎïÖʵÄÈܽâ¶ÈÏàµÈ£¬¶¼ÊÇ50g Õô·¢ÈܼÁ£¨¼ÓÈëÈÜÖÊ£¬½µµÍζȣ© ½µÎ½ᾧ 75g 3¡Ã8 ±û£¾ÒÒ£¾¼× ÒÒ£¾±û£¾¼×
¡¾½âÎö¡¿
£¨1£©PµãµÄÒâÒåÊÇt2¡æʱ£¬¼×¡¢±ûÁ½ÖÖÎïÖʵÄÈܽâ¶ÈÏàµÈ£¬¶¼ÊÇ50g£»
£¨2£©ÒªÊ¹½Ó½ü±¥ºÍµÄ¼×ÈÜÒº±ä³É±¥ºÍÈÜÒº£¬¿É²ÉÓõķ½·¨ÓÐÕô·¢ÈܼÁ¡¢¼ÓÈëÎïÖʼס¢½µµÍζȵȣ»
ÒòΪÎïÖʼ׵ÄÈܽâ¶ÈËæζȵı仯½Ï´ó£¬ÇÒ¶þÕßµÄÈܽâ¶È¶¼ËæζȵÄÉý¸ß¶øÔö´ó£¬¹Êµ±¼×Öк¬ÓÐÉÙÁ¿ÒÒʱ£¬¿É²ÉÓýµÎ½ᾧµÄ·½·¨Ìá´¿¼×£»
£¨3£©ÓÉͼ¿ÉÖª£¬t2¡æʱ£¬ÎïÖʼ׵ÄÈܽâ¶ÈΪ50g£¬¹ÊÏò30g¼×ÎïÖÊÖмÓÈë50gË®£¬³ä·ÖÈܽâºó£¬ÈܽâµÄ¼×Ϊ25g£¬¹ÊËùµÃÈÜÒºÖÊÁ¿Îª75g£»
½«ÆäÉý¸ßµ½t3¡æʱ£¬ÎïÖʼ׵ÄÈܽâ¶ÈΪ80g£¬¹Ê30g¼×ÍêÈ«Èܽ⣬ÈÜÖÊÖÊÁ¿Îª30g£¬ÈÜÒºÖÊÁ¿Îª30g+50g=80g£¬¹ÊËùµÃÈÜÒºÖÐÈÜÖʺÍÈÜÒºÖÊÁ¿±ÈΪ3:8£»
£¨4£©t4¡æʱ£¬Èܽâ¶È¼×£¾ÒÒ£¾±û£¬¹Ê°ÑµÈÖÊÁ¿µÄ¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖÊ·Ö±ðÅäÖƳɱ¥ºÍÈÜÒº£¬Ëù¼ÓÈëµÄÈܼÁµÄÖÊÁ¿Îª¼×£¼ÒÒ£¼±û£¬¹ÊËùµÃÈÜÒºÖÊÁ¿ÓÉ´óµ½Ð¡µÄ˳ÐòΪ±û£¾ÒÒ£¾¼×£»
£¨5£©½«t4¡æʱ¼×¡¢ÒÒ¡¢±ûÈýÖÖÎïÖʵı¥ºÍÈÜÒº½µÎÂÖÁt1¡æ£¬¼×µÄÈܽâ¶È¼õС·ù¶È×î´ó£¬ÈÜÖʵÄÖÊÁ¿·ÖÊý¼õС×î¶à£»ÒÒµÄÈܽâ¶ÈÂÔÓмõС£¬ÈÜÖʵÄÖÊÁ¿·ÖÊýÂÔÓмõС£»±ûµÄÈܽâ¶ÈËäÈ»Ôö´ó£¬µ«ÊDZûµÄÈÜÖʵÄÖÊÁ¿·ÖÊý²»±ä£»¶øÓÉͼ¿ÉÒÔ¿´³öt1¡æʱ£¬ÒÒµÄÈܽâ¶È×î´ó£¬±ûµÄÈÜÖÊÖÊÁ¿·ÖÊýÓÉÆäÔÚt4¡æʱµÄÈܽâ¶È¾ö¶¨£¬´¦ÓÚµÚ¶þ£¬¼×µÄÈܽâ¶È×îС£¬¹ÊËùµÃÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýÓÉ´óµ½Ð¡µÄ˳ÐòΪÒÒ£¾±û£¾¼×¡£
¡¾ÌâÄ¿¡¿ÒÑÖª20¡æʱ£¬NaClºÍNaNO3µÄÈܽâ¶È·Ö±ðΪ36gºÍ88g£¬ÒÀ¾ÝÏÂÁÐ20¡æʱµÄʵÑéºÍÊý¾ÝÅжϣ¬ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ
ÐòºÅ | ¢Ù | ¢Ú | ¢Û | ¢Ü | ¢Ý. | |
¹ÌÌåÖÖÀà | NaCl | NaCl | NaNO3 | NaNO3 | NaNO3 | |
¹ÌÌåµÄÖÊÁ¿/g | 30 | 60 | 30 | 60 | 90 | |
Ë®µÄÖÊÁ¿/g | 100 | 100 | 100 | 100 | 100 |
A.¢Ú¢ÝÊôÓÚ±¥ºÍÈÜÒº£º
B.ÈÜÒºÖÊÁ¿£º¢Ú£¼¢Ü
C.ÈÜÖÊÖÊÁ¿·ÖÊý£º¢Ù=¢Û
D.¢ÝÖÐÈÜÖÊÓëÈܼÁµÄÖÊÁ¿±ÈΪ9£º10