[Ñ¡ÐÞ3ÎïÖʽṹÓëÐÔÖÊ]
ÓÃÓÚ½ðÊôº¸½ÓµÄijÖÖº¸Ìõ£¬ÆäҩƤÓÉ´óÀíʯ¡¢Ë®Äà¡¢¹èÌúµÈÅäÖƶø³É£®
£¨1£©AlµÄÔ­×Ó»ù̬ºËÍâµç×ÓÅŲ¼Ê½
1S22S22P63S23P1
1S22S22P63S23P1
£»AlÓëNaOHÈÜÒº·´Ó¦µÄÀë×Ó·½³ÌʽΪ
2Al+2OH-+2H2O=2AlO2-+3H2¡ü
2Al+2OH-+2H2O=2AlO2-+3H2¡ü
£®
£¨2£©30SiµÄÔ­×ÓµÄÖÐ×ÓÊýΪ
16
16
£»SiO2¾§ÌåÀàÐÍΪ
Ô­×Ó¾§Ìå
Ô­×Ó¾§Ìå
£®
£¨3£©Al3+ÓëYn-µÄµç×ÓÊýÏàͬ£¬YËùÔÚ×åµÄ¸÷ÔªËصÄÇ⻯ÎïµÄË®ÈÜÒº¾ùÏÔËáÐÔ£¬Ôò¸Ã×åÇ⻯ÎïÖзеã×îµÍµÄÊÇ
HCl
HCl
£®
£¨4£©º¸½Ó¹ý³ÌÖУ¬Ò©Æ¤ÔÚ¸ßÎÂϲúÉúÁËÈÛÔüºÍʹ½ðÊô²»±»Ñõ»¯µÄÆøÌ壬¸ÃÆøÌå
CO2
CO2
£»ÆäÔÓ»¯ÀàÐÍΪ
SPÔÓ»¯
SPÔÓ»¯
£®
£¨5£©¾­´¦ÀíºóµÄÈÛÔü36.0g£¨½öº¬Fe2O3¡¢Al2O3¡¢SiO2£©£¬¼ÓÈë×ãÁ¿Ï¡ÑÎËᣬ·ÖÀëµÃµ½11.0g¹ÌÌ壻ÂËÒºÖмÓÈë¹ýÁ¿NaOHÈÜÒº£¬·ÖÀëµÃµ½21.4g¹ÌÌ壻Ôò´ËÈÛÔüÖÐAl2O3µÄÖÊÁ¿·ÖÊýΪ
25%
25%
£®
·ÖÎö£º£¨1£©¸ù¾ÝÔ­×ÓÐòÊýºÍÄÜÁ¿×îµÍÔ­ÔòÊéдµç×ÓÅŲ¼Ê½£»¸ù¾ÝÂÁµÄÐÔÖʺ͵çºÉÊØÖÊÁ¿Êغ㶨ÂÉÊéдÀë×Ó·½³Ìʽ£»
£¨2£©¸ù¾ÝÖÊÁ¿Êý=ÖÊ×ÓÊý+ÖÐ×ÓÊý£¬¼ÆËãÖÐ×ÓÊý£»¸ù¾Ý¾§ÌåµÄÐÔÖʺͳɼü·½Ê½ÅжϾ§ÌåµÄÀàÐÍ£»
£¨3£©ÔÚÔªËØÖÜÆÚ±íÖÐÖ»Óеڢ÷A×å±ËØÔ­×ÓµÄÇ⻯ÎïµÄË®ÈÜÒº²Å¾ùÏÔËáÐÔ£¬¸ù¾ÝÓ°Ïì·Ö×Ó¾§ÌåµÄÈ۷еã¸ßµÍµÄÒòËØÅжÏÈ۷еã¸ßµÍ£¬½øÒ»²½ÍƶÏÎïÖÊ£»
£¨4£©ÓÉҩƤµÄ³É·ÖºÍÎïÖʵÄÐÔÖÊÍƶϣ»
£¨5£©¸ù¾ÝÖÊÁ¿Êغ㶨Âɺͻ¯Ñ§·½³Ìʽ½øÐмÆË㣮
½â´ð£º½â£º£¨1£©AlÔÚÖÜÆÚ±íÖÐλÓÚµÚÈýÖÜÆÚµÚ¢óA×壬AlÔ­×ÓºËÍâ¹²13¸öµç×Ó£¬°´ÕÕÄÜÁ¿×îµÍÔ­Ôòµç×ÓÏÈÌîÈëÄÜÁ¿×îµÍµÄ1s¹ìµÀ£¬ÌîÂúºóÔÙÒÀ´ÎÌîÈëÄÜÁ¿½Ï¸ßµÄ¹ìµÀÆäµç×ÓÅŲ¼Ê½Îª1S22S22P63S23P1£»AlÓëÇ¿¼îÈÜÒº·´Ó¦Éú³ÉAlO2-ºÍH2£¬Àë×Ó·½³ÌʽΪ2Al+2OH-+2H2O=2AlO2-+3H2¡ü£¬¹Ê´ð°¸Îª£º1S22S22P63S23P1£» 2Al+2OH-+2H2O=2AlO2-+3H2¡ü£»
£¨2£©ÔÚÔ­×Ó·ûºÏµÄ±í´ïʽÖÐ×óÉϽDZíʾÖÊÁ¿Êý£¬×óϽDZíʾÖÊ×ÓÊý£¬¸ù¾ÝÖÊÁ¿Êý=ÖÊ×ÓÊý+ÖÐ×ÓÊý¿É¼ÆËã³ö30SiµÄÔ­×ÓµÄÖÐ×ÓÊýΪ£º30-14=16£¬SiO2ÈÛµã¸ß¡¢Ó²¶È´ó£¬ÎªÔ­×Ó¾§Ì壬¹Ê´ð°¸Îª£º16£» Ô­×Ó¾§Ì壻 
£¨3£©ÔÚÔªËØÖÜÆÚ±íÖÐÖ»Óеڢ÷A×å±ËØÔ­×ÓµÄÇ⻯ÎïµÄË®ÈÜÒº²Å¾ùÏÔËáÐÔ£¬ÒòΪAl3+ÓëYn-µÄµç×ÓÊýÏàͬ£¬ËùÒÔYÊÇFÔªËØ£®Â±ËØÔªËØÐγɵÄÇ⻯Îï¾ùÊôÓÚ·Ö×Ó¾§Ì壬Æä·ÐµãËæ·Ö×Ó¼ä×÷ÓÃÁ¦µÄÔö´ó¶øÉý¸ß£¬µ«ÓÉÓÚHF·Ö×ÓÖдæÔÚÇâ¼ü£¬Òò¶øHFµÄ·Ðµã×î¸ß£¬ËùÒԷеã×îµÍµÄÊÇHCl£®¹Ê´ð°¸Îª£ºHCl£»
£¨4£©ÓÉҩƤµÄ³É·Ö´óÀíʯ¡¢Ë®Äà¡¢¹èÌú¿ÉÖª£¬ÔÚ¸ßÎÂÏÂÖ»ÓдóÀíʯ²Å·Ö½â²úÉúCO2£¬Òò´ËÆøÌåÖ»ÄÜÊÇCO2ÆøÌ壬·Ö×ÓÖк¬ÓÐ2¸ö¦Ä¼ü£¬Ó¦ÎªSPÔÓ»¯£®¹Ê´ð°¸Îª£ºCO2£»SPÔÓ»¯£»
£¨5£©ÈÛÔüÖÐÖ»ÓÐSiO2ÓëÑÎËá²»·´Ó¦£¬Òò´Ë11.0gÊÇSiO2µÄÖÊÁ¿£®Fe2O3¡¢Al2O3ÈÜÓÚÑÎËá·Ö±ðÉú³ÉFeCl3¡¢AlCl3£¬µ±ÂËÒºÖмÓÈë¹ýÁ¿NaOHÈÜҺʱAlCl3Éú³ÉNaAlO2£¬FeCl3Éú³ÉFe£¨OH£©3³Áµí£®ËùÒÔ21.4g¹ÌÌåÊÇFe£¨OH£©3µÄÖÊÁ¿£¬ÆäÎïÖʵÄÁ¿Îª
21.4g
107g?mol-1
=0.2 mol£¬ÓÉÌúÔ­×ÓÊغãÖªFe2O3µÄÎïÖʵÄÁ¿Îª0.1mol£¬ÆäÖÊÁ¿Îª0.1mol¡Á160g?mol-1=16.0g£®ÈÛÔüÖÐAl2O3µÄÖÊÁ¿·ÖÊýΪ £¨36.0-11.0-16.0£©/36¡Á100%=25%£®¹Ê´ð°¸Îª£º25%£®
µãÆÀ£º±¾Ì⿼²éÔ­×ӵĽṹ¡¢¾§ÌåÀàÐÍ¡¢·½³ÌʽµÄÊéдÒÔ¼°ÓйؼÆË㣬ÌâÄ¿½ÏΪ×ۺϣ¬±¾ÌâÖÐ×¢Òâ°ÑÎÕÅжϾ§ÌåÀàÐÍÒÔ¼°¾§ÌåÈ۷еã¸ßµÍµÄ·½·¨£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2013?À¼ÖÝһģ£©[»¯Ñ§--Ñ¡ÐÞ3  ÎïÖʽṹÓëÐÔÖÊ]
Ni¡¢FeÊÇÖØÒªµÄ½ðÊô£¬ËüÃǵĵ¥Öʼ°»¯ºÏÎïÔÚ¿ÆѧÑо¿ºÍ¹¤ÒµÉú²úÖоßÓÐÐí¶àÓÃ;£®
£¨1£©»ù̬NiÔ­×Óµç×ÓÅŲ¼Ê½Îª
1s22s22p63s23p63d84s2
1s22s22p63s23p63d84s2
£»
£¨2£©µÚ¶þÖÜÆÚ»ù̬ԭ×Óδ³É¶Ôµç×ÓÊýÓëNiÏàͬÇҵ縺ÐÔ×îСµÄÔªËØÊÇ
C
C
£®NiµÄÒ»ÖÖÅäºÏÎïµÄ·Ö×ӽṹÈçͼ1Ëùʾ£¬¸ÃÅäºÏÎïÖÐCÔ­×ÓµÄÔÓ»¯¹ìµÀÀàÐÍÊÇ
sp3¡¢sp2
sp3¡¢sp2
£¬ÅäºÏÎï·Ö×ÓÄÚ²»º¬ÓÐ
AC
AC
£¨ÌîÐòºÅ£©£®
A£®Àë×Ó¼ü     B£®¼«ÐÔ¼ü       C£®½ðÊô¼ü
D£®Åäλ¼ü     E£®Çâ¼ü         F£®·Ç¼«ÐÔ¼ü
£¨3£©ÅäºÏÎïNi£¨CO£©4³£ÎÂÏÂΪҺ̬£¬Ò×ÈÜÓÚCCl4¡¢±½µÈÓлúÈܼÁ£®¹Ì̬Ni£¨CO£©4ÊôÓÚ
·Ö×Ó
·Ö×Ó
¾§Ì壮ÅäºÏÎïNi£¨CO£©4ÖÐ
COÓëN2½á¹¹ÏàËÆ£¬CO·Ö×ÓÄÚ¦Ò¼üÓë¦Ð¼ü¸öÊýÖ®±ÈΪ
1£º2
1£º2
£»
£¨4£©Ni2+ºÍFe2+µÄ°ë¾¶·Ö±ðΪ69pmºÍ78pm£¬ÔòÈÛµãNiO
£¾
£¾
FeO£¨Ìî¡°£¼¡±»ò¡°£¾¡±£©£»
£¨5£©ÌúÓЦġ¢¦Ã¡¢¦ÁÈýÖÖͬËØÒìÐÎÌ壨ͼ2£©£¬¦Ã¡¢¦ÁÁ½ÖÖ¾§°ûÖÐÌúÔ­×ÓµÄÅäλÊýÖ®±ÈΪ
2£º1
2£º1
£®Èô¦Ä¾§ÌåµÄÃܶÈΪ¦Ñg?cm-3£¬¸Ã¾§°ûÀⳤΪ
3
112
¦ÑNA
3
112
¦ÑNA
cm£¨ÉèNAΪ°¢·üÙ¤µÂÂÞ³£Êý£¬Óú¬¦ÑºÍNAµÄ´úÊýʽ±íʾ£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2010?±¦¼¦¶þÄ££©[»¯Ñ§Ò»Ñ¡ÐÞ3ÎïÖʽṹÓëÐÔÖÊ]
A¡¢B¡¢C¡¢D¡¢E¡¢FÁùÖÖÔªËصÄÔ­×ÓÐòÊýÒÀ´ÎµÝÔö£®ÒÑÖª£º¢ÙFµÄÔ­×ÓÐòÊýΪ25£¬ÆäÓà¾ùΪ¶ÌÖÜÆÚÔªËØ£»¢ÚÔªËØAÓëÔªËØBͬÖÜÆÚ£¬ÔªËØAÓëÔªËØEͬÖ÷×壬ÇÒ£®A¡¢B¡¢EÈýÔ­×Óp¹ìµÀÉϾùÓÐ2¸öδ³É¶Ôµç×Ó£»¢ÛÔªËØC¡¢D¡¢EÔÚͬһÖÜÆÚ£¬ÇÒCÔ­×ÓÖÐûÓÐδ³É¶Ôµç×Ó£®
Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÔªËØAÓëÔªËØBµÄµç¸ºÐÔ´óС±È½ÏΪ
O
O
£¾
C
C
£¬ÔªËØCÓëÔªËØDµÄµÚÒ»µçÀëÄܵĴóС±È½ÏΪ£®
Mg
Mg
£¾
Al
Al
£¨ÌîÈëÏàÓ¦µÄÔªËØ·ûºÅ£©£»
£¨2£©FµÄºËÍâµç×ÓÅŲ¼Ê½Îª
[Ar]3d54s1»ò1s22s22p63s23p63d54s1
[Ar]3d54s1»ò1s22s22p63s23p63d54s1
£¬
£¨3£©ÔªËØBÓëÔªËØEÐγɵľ§ÌåËùÊôµÄ¾§ÌåÀàÐÍΪ
Ô­×Ó
Ô­×Ó
¾§Ì壬Ôڸþ§ÌåÖÐÔ­×Ó¼äÐγɵĹ²¼Û¼üÊôÓÚ
A
A
£¨´ÓÏÂÁÐÑ¡ÏîÖÐÑ¡³öÕýÈ·ÀàÐÍ£©
A£®¦Ò¼ü     B£®¦Ð ¼ü  C£®¼ÈÓЦҼü£¬ÓÖÓЦмü
£¨4£©ÓÉÇâÔªËØÓëA¡¢BÁ½ÔªËع²Í¬¹¹³ÉµÄÏà¶Ô·Ö×ÓÖÊÁ¿Îª30µÄ·Ö×ÓÀïÖÐÐÄÔ­×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ
sp2
sp2
£¬·Ö×ӵĿռ乹ÐÍΪ
ƽÃæÈý½ÇÐÎ
ƽÃæÈý½ÇÐÎ
£¬
£¨5£©¸ù¾ÝµÈµç×ÓÔ­Àí£¬Ð´³öÓÉÔªËØAÓëÔªËØB¹¹³ÉµÄÒ»ÖÖË«Ô­×Ó¼«ÐÔ·Ö×ӵĽṹʽ
C¡ÔO
C¡ÔO
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

[»¯Ñ§Ñ¡ÐÞ3-ÎïÖʽṹÓëÐÔÖÊ]
ÒÑÖªA¡¢B¡¢C¡¢D¡¢E¡¢FÊÇÖÜÆÚ±íÖÐÇ°ËÄÖÜÆÚµÄÔªËØ£¬ËüÃǵĺ˵çºÉÊýÒÀ´ÎÔö´ó£®ÆäÖÐB¡¢D¡¢FÔ­×Ó×îÍâµç×Ó²ãµÄPÄܼ¶£¨¹ìµÀ£©Éϵĵç×Ó´¦ÓÚ°ë³äÂú״̬£®Í¨³£Çé¿öÏ£¬AµÄijÖÖÑõ»¯Îï·Ö×ÓΪ·Ç¼«ÐÔ·Ö×Ó£¬Æ侧°ûÖзÖ×Ó³ÊÃæÐÄÁ¢·½¶Ñ»ý£®EµÄµç¸ºÐÔÔÚ¸ÃÖÜÆÚÖÐ×î´ó£®CµÄµ¥ÖÊÊÇÒ»ÖÖ³£¼ûµÄ°ëµ¼Ìå²ÄÁÏ£®»Ø´ðÏÂÁÐÎÊÌ⣺£¨´ðÌâʱ£¬A¡¢B¡¢C¡¢D¡¢E¡¢F¾ùÓÃËù¶ÔÓ¦µÄÔªËØ·ûºÅ±íʾ£©
£¨1£©Ð´³ö»ù̬FÔ­×ӵĺËÍâµç×ÓÅŲ¼Ê½
 
£®
£¨2£©A£¬B£¬CµÄµÚÒ»µçÀëÄÜÓÉ´óµ½Ð¡µÄ˳ÐòΪ
 
£®
£¨3£©ÉÏÊöAµÄÑõ»¯Îï·Ö×ÓÖÐÐÄÔ­×Ó²ÉÈ¡
 
ÔÓ»¯£¬Æ侧°ûÖÐ΢Á£¼äµÄ×÷ÓÃÁ¦Îª
 
£®
£¨4£©ÓÐÏÂÁÐÈýÖÖÎïÖÊ£º¢ÙBµÄÇ⻯Îï¢ÚAµÄ×î¸ß¼ÛÑõ»¯Îï¢ÛAºÍCÐγɵĻ¯ºÏÎËüÃǵķеã´Ó¸ßµ½µÍµÄ˳ÐòΪ
 
£®
£¨5£©¹ÌÌåCrE3?6H2OÈÜÓÚË®¿ÉÄÜÓм¸ÖÖ²»Í¬×é³ÉµÄÅäÀë×Ó£¬½«º¬0.2665g CrE3?6H2O  µÄÈÜҺͨ¹ýÇâÀë×Ó½»»»Ê÷Ö¬£¨Ö»½»»»ÅäÑôÀë×Ó£©£¬½»»»³öµÄÇâÀë×ÓÇ¡ºÃÓÃ0.1250mol/LµÄÇâÑõ»¯ÄÆÈÜÒº8.00mLÖкͣ®ÒÑÖªÅäÀë×ÓÅäλÊýΪ6£¬Ôò¸ÃÅäÀë×ÓÊÇ
 
£¬Åäλԭ×ÓÊÇ
 
£¬¸Ã¹ÌÌåÈÜÓÚË®»¹¿ÉÐγɶàÖÖÅäÑôÀë×Ó£¬Ð´³öÆäÖеÄÁ½ÖÖ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾Ñ¡ÐÞ3--ÎïÖʽṹÓëÐÔÖÊ¡¿
É黯ïØ£¨GaAs£©ÊôÓÚµÚÈý´ú°ëµ¼Ì壬ÓÃËüÖÆÔìµÄµÆÅÝÊÙÃüÊÇÆÕͨµÆÅݵÄ100±¶£¬¶øºÄÄÜÖ»ÓÐÆä10%£®ÍƹãÉ黯ïصȷ¢¹â¶þ¼«¹Ü£¨LED£©ÕÕÃ÷£¬ÊǽÚÄܼõÅŵÄÓÐЧ¾Ù´ë£®Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©Ð´³öAs»ù̬ԭ×ӵļ۵ç×ÓÅŲ¼Ê½£º
 
£®
£¨2£©AsµÄµÚÒ»µçÀëÄܱÈGaµÄ
 
£¨Ìî¡°´ó¡±»ò¡°Ð¡¡±£¬ÏÂͬ£©£¬AsµÄµç¸ºÐÔ±ÈGaµÄ
 
£®
£¨3£©±È½ÏAsµÄ¼òµ¥Ç⻯ÎïÓëͬ×åµÚ¶þ¡¢ÈýÖÜÆÚÔªËØËùÐγɵļòµ¥Ç⻯ÎïµÄ·Ðµã£¬²¢ËµÃ÷ÀíÓÉ£º
 
£®
£¨4£©GaAsµÄ¾§Ìå½á¹¹Óëµ¥¾§¹èÏàËÆ£¬ÔÚGaAs¾§ÌåÖУ¬Ã¿¸öGaÔ­×ÓÓë
 
¸öAsÔ­×ÓÏàÁ¬£¬Óëͬһ¸öGaÔ­×ÓÏàÁ¬µÄAsÔ­×Ó¹¹³ÉµÄ¿Õ¼ä¹¹ÐÍΪ
 
£®ÔÚËÄ´ó¾§ÌåÀàÐÍÖУ¬GaAsÊôÓÚ
 
¾§Ì壮
£¨5£©É黯ïØ¿ÉÓÉ£¨CH3£©3GaºÍAsH3ÔÚ700¡æÏ·´Ó¦ÖƵ㬴˷´Ó¦µÄ»¯Ñ§·½³ÌʽΪ
 
£»ÒÑÖª£¨CH3£©3GaΪ·Ç¼«ÐÔ·Ö×Ó£¬ÔòÆäÖÐïØÔ­×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

[»¯Ñ§--Ñ¡ÐÞ3ÎïÖʽṹÓëÐÔÖÊ]A¡¢B¡¢C¡¢D¡¢E¡¢FΪǰËÄÖÜÆÚÔªËØÇÒÔ­×ÓÐòÊýÒÀ´ÎÔö´ó£¬ÆäÖÐAº¬ÓÐ3¸öÄܼ¶£¬ÇÒÿ¸öÄÜ ¼¶Ëùº¬µÄµç×ÓÊýÏàͬ£»CµÄ×îÍâ²ãÓÐ6¸öÔ˶¯×´Ì¬²»Í¬µÄµç×Ó£»DÊǶÌÖÜÆÚÔªËØÖе縺ÐÔ×î Ð¡µÄÔªËØ£»EµÄ×î¸ß¼ÛÑõ»¯ÎïµÄË®»¯ÎïËáÐÔ×îÇ¿£»F³ý×îÍâ²ãÔ­×Ó¹ìµÀ´¦ÓÚ°ë³äÂú״̬£¬ÆäÓà Äܲã¾ù³äÂúµç×Ó£®GÔªËØÓëDÔªËØͬÖ÷×壬ÇÒÏà²î3¸öÖÜÆÚ£®
¾«Ó¢¼Ò½ÌÍø
£¨1£©ÔªËØA¡¢B¡¢CµÄµÚÒ»µçÀëÄÜÓÉСµ½´óµÄÊÇ
 
ÓÃÔªËØ·ûºÅ±íʾ£©£®
£¨2£©EµÄ×î¸ß¼Ûº¬ÑõËáÖÐEµÄÔÓ»¯·½Ê½Îª
 
£®
£¨3£©FÔ­×ÓµÄÍâΧµç×ÓÅŲ¼Ê½Îª
 
£¬FµÄ¾§ÌåÖÐÔ­×ӵĶѻý·½Ê½ÊÇÈçͼ1ÖеÄ
 
£¨Ìîд¡°¼×¡±¡¢¡°ÒÒ¡±»ò¡°±û¡±£©£®
£¨4£©DE£¬GEÁ½ÖÖ¾§Ì壬¶¼ÊôÓÚÀë×Ó¾§Ì壬µ«ÅäλÊý²»Í¬£¬ÆäÔ­ÒòÊÇ
 

£¨5£©ÒÑÖªDE¾§ÌåµÄ¾§°ûÈçͼ2ËùʾÈô½«DE¾§°ûÖеÄËùÓÐEÀë×ÓÈ¥µô£¬²¢½«DÀë×ÓÈ«²¿»»ÎªAÔ­×Ó£¬ÔÙÔÚÆäÖеÄ4¸ö¡°Ð¡ Á¢·½Ì塱ÖÐÐĸ÷·ÅÖÃÒ»¸öAÔ­×Ó£¬ÇÒÕâ4¸ö¡°Ð¡Á¢·½Ì塱²»ÏàÁÚ£®Î»ÓÚ¡°Ð¡Á¢·½Ì塱ÖеÄAÔ­ ×ÓÓë×î½üµÄ4¸öAÔ­×ÓÒÔµ¥¼üÏàÁ¬£¬Óɴ˱íʾAµÄÒ»ÖÖ¾§ÌåµÄ¾§°û£¨ÒÑÖªA-A¼üµÄ¼ü³¤ Îªa cm£¬NA±íʾ°¢·ü¼ÓµÂÂÞ³£Êý£©£¬Ôò¸Ã¾§°ûÖк¬ÓÐ
 
¸öAÔ­×Ó£¬¸Ã¾§ÌåµÄÃܶÈÊÇ
 
 g?cm-3£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸