ÌâÄ¿ÄÚÈÝ
ÑγÇÊÐ2013ÄêÖп¼»¯Ñ§ÊµÑ鿼²éÓУº¢ÙÑõÆøµÄÖÆÈ¡£»¢Ú¶þÑõ»¯Ì¼µÄÖÆÈ¡£»¢ÛÅäÖÆ50g 5%µÄNaClÈÜÒº¡¡µÈÁù¸ö¿¼Ç©,ÓÉѧÉú³éÇ©È·¶¨Ò»¸ö¿¼Ìâ½øÐп¼²é¡£
£¨1£©¼×ͬѧ³éÇ©ºóÀ´µ½ÊµÑéÊÒ£¬·¢ÏÖ±¾×éʵÑé×ÀÉÏÖ÷Ҫ׼±¸ÁËÏÂÁÐÒÇÆ÷ºÍÒ©Æ·£º
¢ÙÉÏͼÖÐÒÇÆ÷DµÄÃû³ÆÊÇ £»FµÄÃû³ÆÊÇ ¡£
¢Ú¼×ͬѧ³éµ½µÄ¿¼Ç©Ó¦¸ÃÊÇ £¨Ìî×Öĸ´úºÅ£©¡£
A£®ÑõÆøµÄÖÆÈ¡ B£® ¶þÑõ»¯Ì¼µÄÖÆÈ¡
¢ÛÖÆÈ¡¸ÃÆøÌåµÄ·´Ó¦ÔÀíΪ £¨Óû¯Ñ§·½³Ìʽ±íʾ£©¡£ÖÆȡһƿ¸ÃÆøÌ壬ӦѡÓõÄÒÇÆ÷ÓÐ £¨Ìî×Öĸ´úºÅ£©¡£
¢Ü¼×ͬѧʵÑéµÄÖ÷Òª²½ÖèʾÒâÈçÏ£¬ÇëÄã°ïËû²¹³äÍêÕû¡£
×éºÏ×°Öáú¼ì²éÆøÃÜÐÔ¡ú ¡úÊÕ¼¯ÆøÌå¡£
¢ÝÀûÓÃÉÏÊöÆøÌå·¢Éú×°Öû¹¿ÉÒÔÖÆÈ¡ÆäËüÆøÌ壬Çëд³öÆäÖÐÒ»ÖÖ·´Ó¦µÄ»¯Ñ§·½³Ì
ʽ ¡£
£¨2£©ÒÒͬѧÔÚÍê³É¡°ÅäÖÆ50g 5%µÄNaClÈÜÒº¡±ÊµÑé¹ý³ÌÖУ¬Í¨¹ý¼ÆË㣬Ðè³ÆÁ¿
NaCl g£¬Á¿È¡Ë®Ô¼ mL¡£ÈܽâNaClʱÓõ½µÄ²£Á§°ôµÄ×÷ÓÃÊÇ ¡£
£¨1£©¢ÙÉÕ±£»¾Æ¾«µÆ
¢ÚB£» ¢ÛCaCO3 + 2HCl === CaCl2 + H2O+ CO2¡ü
A B C E
¢ÜÏȼӴóÀíʯºó¼ÓÏ¡ÑÎË᣻¢Ý2H2O2 2H2O + O2¡ü£»
£¨2£©2.5£»47.5£»½Á°è£¬¼Ó¿ìÈܽâËÙ¶È