£¨8·Ö£©Èçͼ£¨¼×£©ÊÇA¡¢B¡¢CÈýÖÖ¹ÌÌåÎïÖʵÄÈܽâ¶ÈÇúÏßͼ¡£»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©ÇúÏßÉϵÄPµã±íʾµÄÒâÒåΪ______________________________£»

£¨2£©t2¡æʱ£¬ÔÚ50gË®ÖмÓÈë20gAÎïÖʳä·ÖÈܽ⣬ËùµÃÈÜÒºÖÐÎïÖÊÓëÈÜÒºµÄÖÊÁ¿±ÈΪ________________¡£

£¨3£©ÈçÏÂͼ£¨ÒÒ£©Ëùʾ£¬Íù³£ÎÂϵÄÕôÁóË®ÖÐÂýÂý¼ÓÈëŨÁòËᣬ½á¹û·¢ÏÖÊÔ¹ÜÄÚµÄÈÜÒºÖгöÏÖ¾§Ìå¡£ÔòXÓ¦¸ÃÊÇA¡¢B¡¢CÈýÖÖÎïÖÊÖеÄ______________¡£

£¨4£©t1¡æʱ£¬½«A¡¢B¡¢CÈýÎïÖʵı¥ºÍÈÜÒº·Ö±ðÉýε½t2¡æ£¬ËùµÃÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýµÄÓÉ´óµ½Ð¡µÄ¹ØϵÊÇ_________________¡£

 

£¨1£©µ±Î¶ÈΪt2¡æʱ£¬A¡¢CÁ½ÎïÖʵÄÈܽâ¶ÈÏàµÈ¡£ £¨2£©1:6£¨20:120£© £¨3£©C £¨4£©B>C>A

¡¾½âÎö¡¿

ÊÔÌâ·ÖÎö£º£¨1£©ÇúÏßÉϵÄPµãÊÇAºÍCµÄ½»µã£¬¶ÔÓ¦µÄζÈΪt2¡æ£»ËùÒÔ±íʾµÄÒâÒåΪµ±Î¶ÈΪt2¡æʱ£¬A¡¢CÁ½ÎïÖʵÄÈܽâ¶ÈÏàµÈ¡£

£¨2£©t2¡æʱ£¬AµÄÈܽâ¶ÈΪ20g¡£¼´ÔÚt2¡æʱÔÚ100gË®ÖÐÈܽâ20gA¿É´ïµ½±¥ºÍ¡£Òò´ËÔÚ50gË®ÖмÓÈë×î¶àÈܽâ10gAÎïÖÊ£»ËùµÃÈÜÒºÖÐÎïÖÊÓëÈÜÒºµÄÖÊÁ¿±ÈΪ10g £º£¨10g +50g£©=1£º6¡£

£¨3£©Å¨ÁòËáÈܽâÓÚˮʱ»á·Å³ö´óÁ¿µÄÈÈ¡£¼´ÒÒÖÐÉÕ±­µÄζȻáÉý¸ß¡£¡°·¢ÏÖÊÔ¹ÜÄÚµÄÈÜÒºÖгöÏÖ¾§Ì塱˵Ã÷X¹ÌÌåÔÚζÈÉý¸ßʱ»á´ÓÆä±¥ºÍÈÜÒºÖÐÎö³ö¡£ËùÒÔ¿ÉÖªXµÄÈܽâ¶È»áËæ×ÅζȵÄÉý¸ß¶ø½µµÍ£¬ÔòXΪC¡£

£¨4£©t1¡æÉýε½t2¡æʱ£¬ABµÄÈܽâ¶È¾ù±ä´ó£¬²»»áÎö³ö¹ÌÌå¡£ËùÒÔÆäÈÜÒºÖеÄÖÊÁ¿·ÖÊýÈÔºÍt1¡æʱËüÃǵı¥ºÍÈÜÒºµÄÖÊÁ¿·ÖÊýÏàµÈ£¬¼´°´t1¡æʱÁ½ÎïÖʵÄÈܽâ¶È½øÐмÆËã¡£CÔÚÉýÎÂʱÆäÈܽâ¶È±äС£¬»áÓйÌÌåÎö³ö¡£ËùÒÔÆäÐγɵÄÈÜÒºÈÔΪ±¥ºÍÈÜÒº¡£ÆäÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýÓ¦°´CÎïÖÊÔÚt2¡æʱÈܽâ¶È½øÐмÆËã¡£¸ù¾Ýͼʾ¿ÉÖª£¬t1¡æʱBµÄÈܽâ¶È´óÓÚt2¡æʱCµÄÈܽâ¶È£¬t2¡æʱCµÄÈܽâ¶È´óÓÚt1¡æʱAµÄÈܽâ¶È¡£ËùÒÔËùµÃÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýµÄÓÉ´óµ½Ð¡µÄ¹ØϵÊÇB>C>A¡£

¿¼µã£ºÈܽâ¶ÈÇúÏß

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014ºÓ±±Ê¡ÌÆɽÊзÄÏÇøÖп¼¶þÄ£»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÌ½¾¿Ìâ

ʵÑéС×éÑо¿ÑÎËá¡¢ÇâÑõ»¯ÄÆ¡¢ÇâÑõ»¯¸ÆÈýÖÖÎïÖʵĻ¯Ñ§ÐÔÖÊ£¬×öÁËÈçͼËùʾµÄʵÑé¡£ÇëÄãÀûÓÃͼÖÐËù¸øÒ©Æ·ºÍËûÃÇÒ»Æð½øÐÐÑо¿¡£

£¨1£©ÊµÑéºóijÊÔ¹ÜÖÐΪ»ÆÉ«ÈÜÒº£¬¸ÃÊÔ¹ÜÖз¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ ¡£

£¨2£©ÊµÑéºóijÊÔ¹ÜÖÐΪºìÉ«ÈÜÒº£¬ÏòÆäÖмÓÈë×ãÁ¿µÄ £¬ÈÜÒº±äΪÎÞÉ«¡£ÓÉ´ËÍƶϣ¬¸ÃÊÔ¹ÜÖÐ×î³õÊ¢ÓеÄÎïÖÊÊÇ ¡£

£¨3£©ÊµÑéºóijÊԹܵײ¿ÓÐÀ¶É«Ðõ×´³Áµí£¬¼ÌÐøÏòÆäÖмÓÈë×ãÁ¿µÄ £¬Õñµ´ºó³ÁµíÏûʧ¡£

£¨4£©ÊµÑéºóijÊԹܵĵײ¿Óа×É«¹ÌÌ壬¹ýÂ˺óÏòÂËÒºÖеμÓÏ¡ÑÎËᣬ¿ªÊ¼Ê±ÎÞÃ÷ÏÔÏÖÏó£¬Ò»¶Îʱ¼äºóÓÐÆøÅݳöÏÖ¡£ÓÉ´ËÍƶϣ¬¸ÃÊÔ¹ÜÖÐ×î³õ·¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌΪ ¡£

£¨5£©ÊµÑéºóijÊÔ¹ÜÖÐÖ»µÃµ½ÎÞÉ«ÈÜÒº£¬ÏòÆäÖмÓÈë×ãÁ¿µÄ̼ËáÄÆÈÜÒº£¬Ö»²úÉúÆøÅÝ¡£ÄÇô¸ÃÊÔ¹ÜÖÐ×î³õ·¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌΪ ¡£

£¨6£©ÊµÑé½áÊøʱ£¬ËûÃǽ«ÊµÑé·ÏÒºµ¹Èëͬһ·ÏÒº¸×ÖУ¬¹Û²ìºó£¬ËûÃDzÂÏë×îÖյķÏÒº¿ÉÄܳÊËáÐÔ¡£ÎªÁËÑéÖ¤²ÂÏ룬ÀûÓÃÉÏÊöʵÑéÖÐδÉæ¼°µ½µÄËáµÄ»¯Ñ§ÐÔÖÊ£¬ÁíÑ¡Ò©Æ·½øÐÐʵÑ飺ȡÉÙÁ¿·ÏÒºÑùÆ·ÓÚÊÔ¹ÜÖУ¬ÏòÆäÖмÓÈëÒ»¶¨Á¿µÄ £¬¹Û²ìÏÖÏó£¬Ö¤Ã÷×îÖյķÏÒº³ÊËáÐÔ¡£ÊµÑéºóΪÁ˱ÜÃâ·ÏÒºÔì³É²»Á¼ºó¹û £¬ËûÃǶԷÏÒº½øÐÐÁËÇ¡µ±´¦Àí¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡ÏÂѧÆÚ¾ÅÄ꼶µÚÒ»´Î»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

»¯Ñ§±ä»¯µÄ½á¹ûÊÇÓС°ÐÂÎïÖÊ¡±Éú³É£¬Èç¹û°Ñ·´Ó¦Îï¿´³ÉÊÇ¡°¾ÉÎïÖÊ¡±£¬ÏÂÃæ¶Ô¡°ÐÂÎïÖÊ¡±ºÍ¡°¾ÉÎïÖÊ¡±µÄÀí½â£¬ÕýÈ·µÄÊÇ£¨ £©

A£® ÐÂÎïÖÊÊÇÖ¸ÊÀ½çÉÏûÓеÄÎïÖÊ

B£® ÐÂÎïÖʲ»»áÔÙ±ä³ÉÆäËûÎïÖÊ

C£® ÐÂÎïÖʺ;ÉÎïÖʵÄÐÔÖʼ°ÓÃ;²»¿ÉÄÜÍêÈ«Ïàͬ

D£® ÐÂÎïÖʵÄÔªËØ×é³ÉÓë¾ÉÎïÖʵÄÔªËØ×é³É¿Ï¶¨²»Í¬

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡¸§ÖÝÊнìÖп¼»¯Ñ§Ä£Äâ¾í¶þÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÎïÖÊMÔÚ²»Í¬Î¶ÈϵÄÈܽâ¶ÈÊý¾ÝÈçϱíËùʾ£¬ÒÔÏÂ˵·¨ÕýÈ·µÄÊÇ£¨ £©

ζȣ¨¡æ£©

0

20

40

60

80

Èܽâ¶È£¨g£©

13.6

16.3

20.0

25.0

39.2

A£®0¡æʱ£¬15.6gMÈÜÓÚ120gË®ÖÐÐγɱ¥ºÍÈÜÒº

B£®20¡æʱ£¬MÐγɱ¥ºÍÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊýÊÇ16.3%

C£®80¡æʱ£¬MµÄ±¥ºÍÈÜÒº139.2g½µÎÂÖÁ40¡æ£¬Îö³ö¾§ÌåµÄÖÊÁ¿´óÓÚ20.0g

D£®ÈôÒªÅäÖÆ300.0g20.0%µÄMµÄ±¥ºÍÈÜÒº£¬¶ÔӦζȱØÐëÊÇ60¡æ

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡¼ª°²ÊмªÖÝÇøÖп¼µÚÒ»´ÎÄ£Ä⿼ÊÔ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º¼ÆËãÌâ

²Ýľ»ÒÊÇÒ»ÖÖÅ©¼Ò·Ê£¬ËüµÄÖ÷Òª³É·ÖÊÇ̼Ëá¼Ø£¬»¹ÓÐÁòËá¼Ø£¬ÂÈ»¯¼ØµÈ¡£»¯Ñ§ÐËȤС×éΪ²â¶¨Ä³²Ýľ»ÒÑùÆ·ÖеÄÓÐЧ³É·Ö£¬È¡50g²Ýľ»ÒÓÚÉÕ±­ÖУ¬²»¶ÏµÎÈëÁòËáÈÜÒº£¬µ±µÎÈë30gÁòËáÈÜҺʱ£¬²»ÔÙÓÐÆøÅݲúÉú£¬´ËʱÉÕ±­ÖеIJÐÓà»ìºÏÎïµÄÖÊÁ¿Îª77.8g¡££¨¼ÙÉè²Ýľ»ÒµÄÆäËû³É·Ö²»º¬¼ØÔªËØÇÒ²»ÓëËá·´Ó¦£©

Çë¼ÆËã»Ø´ð£º

£¨1£©²Ýľ»ÒµÄÖ÷Òª³É·ÖËùÊôµÄÎïÖÊÀà±ðΪ____________£¨Ìî¡°Ëá¡¢¼î»òÑΡ±£©¡£

£¨2£©Èçͼ±íʾ·´Ó¦¹ý³ÌÖзųöµÄÆøÌåÖÊÁ¿Óë¼ÓÈëÁòËáÈÜÒºµÄ¹ØϵÇúÏߣ¬ÇëÇó³öͼÖÐ×Ý×ø±êÉÏaµãÊýÖµ£ºa=________________g£»

£¨3£©¼ÆËã²Ýľ»ÒÑùÆ·ÖÐ̼Ëá¼ØµÄÖÊÁ¿·ÖÊý¡££¨ÒªÇóд³ö¼ÆËã¹ý³Ì£©

£¨4£©Í¨¹ýÆäËûʵÑ飬²âµÃ¸Ã50g²Ýľ»ÒÖл¹º¬µÄÁòËá¼ØÖÊÁ¿Îª8.7g£¬ÂÈ»¯¼ØµÄÖÊÁ¿Îª1.49g£¬Ôò¸Ã50g²Ýľ»ÒÑùÆ·ÖмØÔªËصÄÖÊÁ¿Îª__________g¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡¼ª°²ÊмªÖÝÇøÖп¼µÚÒ»´ÎÄ£Ä⿼ÊÔ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÍùAgNO3ºÍCu£¨NO3£©2µÄ»ìºÏÈÜÒºÖмÓÈëÒ»¶¨Á¿µÄÌú·Û£¬³ä·Ö·´Ó¦ºó¹ýÂË£¬ÏòÂËÔüÖмÓÈëÏ¡ÑÎËᣬÎÞÆøÅݲúÉú¡£¸ù¾ÝÉÏÊöÏÖÏó£¬ÄãÄܵóöµÄ½áÂÛÊÇ£¨ £©

A£® ÂËÒºÖÐÒ»¶¨ÓÐCu2+¡¢Fe2+B£® ÂËÒºÖÐÒ»¶¨ÓÐAg+¡¢Cu2+

C£® ÂËÒºÖÐÒ»¶¨ÓÐFe2+D£® ÂËÔüÖÐÒ»¶¨ÓÐ_____________

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡¼ª°²ÊмªÖÝÇøÖп¼µÚÒ»´ÎÄ£Ä⿼ÊÔ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

СÃ÷ͬѧ¶Ô²¿·Ö»¯Ñ§ÖªÊ¶¹éÄÉÈçÏ£¬ÆäÖÐÍêÈ«ÕýÈ·µÄÒ»×éÊÇ£¨ £©

A£® ÎïÖʵķÖÀà

B£® »¯Ñ§Óë»·¾³

¢Ù´¿¾»ÎïÖÐÖ»º¬ÓÐÒ»ÖÖÎïÖÊ

¢ÚÑõ»¯ÎïÖк¬ÓÐÑõÔªËØ

¢Û»ìºÏÎïÖÐÒ»¶¨º¬ÓжàÖÖÔªËØ

¢ÙpHСÓÚ7µÄÓêË®¶¼ÊÇËáÓê

¢Ú³ÇÊÐÓµ¶ÂµÄÆû³µ¶¼»á²úÉú´óÁ¿Î²Æø

¢Û¹¤³§ÅųöµÄÑ̳¾Ò×ÐγÉö²ÎÛȾ¿ÕÆø

C£® ¡°µÍ̼¾­¼Ã¡±µÄ´ëÊ©

D£® »¯Ñ§Ó밲ȫ

¢Ù¸ÄÔì»òÌÔÌ­¸ßÄܺġ¢¸ßÎÛȾ²úÒµ

¢ÚÑÐÖƺͿª·¢ÐÂÄÜÔ´Ìæ´ú´«Í³ÄÜÔ´

¢Û¼õÉÙʹÓÃÒ»´ÎÐÔËÜÁÏ·½±ã´ü

¢Ù¼îÈÜÒº½¦µ½Æ¤·ôÉÏ£¬Á¢¼´ÓôóÁ¿ÁòËá³åÏ´

¢ÚµãȼÇâÆøÇ°Ò»¶¨Òª¼ìÑé´¿¶È

¢ÛÈ÷³öµÄ¾Æ¾«ÔÚ×ÀÉÏȼÉÕ£¬ÓÃʪ²¼Æ˸Ç

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­Î÷Ê¡ÏÂѧÆÚÆÚÖп¼ÊÔ³õÈý»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ϱíÖгýÔÓ·½·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

Ñ¡Ïî

ÎïÖÊ

Ëùº¬ÔÓÖÊ

³ýÔÓÖʵķ½·¨

A

ÂÈ»¯ÄƹÌÌå

Äàɳ

¼ÓË®Èܽ⣬¹ýÂËÏ´µÓ£¬¸ÉÔï

B

Ñõ»¯¸Æ

̼Ëá¸Æ

¼ÓË®Èܽ⣬¹ýÂË

C

¶þÑõ»¯Ì¼

Ë®ÕôÆø

ͨ¹ý×°ÓÐŨÁòËáµÄÏ´ÆøÆ¿

D

ÁòËáÍ­ÈÜÒº

ÁòËáÑÇÌúÈÜÒº

¼ÓÈëÍ­·Û£¬¹ýÂË

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º2013-2014½­ËÕÊ¡¾¸½­ÊÐÖп¼Ò»Ä£»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

³ýÈ¥ÏÂÁи÷ÎïÖÊÖеÄÉÙÁ¿ÔÓÖÊ£¬ËùÓ÷½·¨²»¿ÉÐеÄÊÇ£¨¡¡¡¡£©

Ñ¡Ïî

ÎïÖÊ

ÔÓÖÊ

³ýÈ¥ÔÓÖʵķ½·¨

A

CO2

CO

ͨ¹ý×ÆÈȵÄÑõ»¯Í­

B

NaCl

Äàɳ

¼ÓË®Èܽ⡢¹ýÂË¡¢Õô·¢

C

NaOH

Na2CO3

µÎÈë×ãÁ¿Ï¡ÑÎËáÖÁ²»ÔÙ²úÉúÆøÅÝ

D

HNO3ÈÜÒº

HCl

¼ÓÊÊÁ¿AgNO3ÈÜÒº¡¢¹ýÂË

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸