ÌâÄ¿ÄÚÈÝ
6£®Îª²â¶¨ÂÈ»¯ÄƺÍ̼ËáÄÆ»ìºÏÎïµÄ×é³ÉÇé¿ö£¬Ä³Ñо¿Ð¡×é½øÐÐÁËÈçÏÂʵÑ飮Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÊµÑéÖз¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽΪNa2CO3+BaCl2=BaCO3¡ý+2NaCl£®
£¨2£©Çó½â»ìºÏÎïÖз¢Éú·´Ó¦ÎïÖʵÄÖÊÁ¿£¨x£©µÄ±ÈÀýʽΪ$\frac{106}{x}=\frac{197}{19.7g}$£®
£¨3£©»ìºÏÎïÖÐÂÈ»¯ÄƺÍ̼ËáÄÆÖÊÁ¿µÄ×î¼òÕûÊý±ÈΪ83£º106£®
£¨4£©ÔڵμÓÂÈ»¯±µÈÜÒºµÄ¹ý³ÌÖУ¬ÉÕ±Öи÷ÈÜÖÊÖÊÁ¿µÄ±ä»¯Çé¿öÎªËæ×Å·´Ó¦µÄ½øÐУ¬Ì¼ËáÄÆµÄÖÊÁ¿Öð½¥¼õÉÙ£¬ÂÈ»¯ÄƵÄÖÊÁ¿Öð½¥Ôö´ó£»£®
£¨5£©ËùÓÃÂÈ»¯±µÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊýΪ20%£®
·ÖÎö £¨1£©¸ÃʵÑé̼ËáÄÆÓëÂÈ»¯±µ·´Ó¦Éú³É̼Ëá±µ³ÁµíºÍÂÈ»¯ÄÆ£¬¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉÕýÈ·Êéд»¯Ñ§·½³Ìʽ£»
£¨2£©¸ù¾Ý»¯Ñ§·½³ÌʽÖи÷ÎïÖʵÄÖÊÁ¿±È·ÖÎö½â´ð£»
£¨3£©¸ù¾Ý»¯Ñ§·½³Ìʽ£¬½áºÏ³ÁµíµÄÖÊÁ¿À´¼ÆËã³ö̼ËáÄÆµÄÖÊÁ¿¼´¿É½â´ð£»
£¨4£©Ëæ×Å·´Ó¦µÄ½øÐУ¬Ì¼ËáÄÆµÄÖÊÁ¿Öð½¥¼õÉÙ£¬ÂÈ»¯ÄƵÄÖÊÁ¿Öð½¥Ôö´ó£»
£¨5£©¸ù¾Ý»¯Ñ§·½³Ìʽ£¬½áºÏ³ÁµíµÄÖÊÁ¿À´¼ÆËã³öÏûºÄÂÈ»¯±µµÄÖÊÁ¿¼´¿É½â´ð£»
½â´ð ½â£º£¨1£©¸ÃʵÑé̼ËáÄÆÓëÂÈ»¯±µ·´Ó¦Éú³É̼Ëá±µ³ÁµíºÍÂÈ»¯ÄÆ£¬»¯Ñ§·½³ÌʽΪ£ºNa2CO3+BaCl2=BaCO3¡ý+2NaCl£»
£¨2£©É裬̼ËáÄÆµÄÖÊÁ¿Îªx£¬ÏûºÄÂÈ»¯±µµÄÖÊÁ¿Îªy£¬Éú³ÉÂÈ»¯ÄƵÄÖÊÁ¿Îªz£¬
Na2CO3+BaCl2=BaCO3¡ý+2NaCl
106 208 197 117
x y 19.7g z
$\frac{106}{x}=\frac{208}{y}=\frac{197}{19.7g}$
x=10.6g
y=20.8g
£¨3£©»ìºÏÎïÖÐÂÈ»¯ÄƺÍ̼ËáÄÆÖÊÁ¿µÄ×î¼òÕûÊý±È£º£¨18.9g-10.6g£©£º10.6g=83£º106£»
£¨4£©ÔڵμÓÂÈ»¯±µÈÜÒºµÄ¹ý³ÌÖУ¬ÉÕ±ÖÐÈÜÖÊËæ×Å·´Ó¦µÄ½øÐУ¬Ì¼ËáÄÆµÄÖÊÁ¿Öð½¥¼õÉÙ£¬ÂÈ»¯ÄƵÄÖÊÁ¿Öð½¥Ôö´ó£»
£¨5£©$\frac{197}{19.7g}=\frac{117}{z}$
z=11.7g
ËùµÃÈÜÒºÖÊÁ¿Îª£º$\frac{11.7g+£¨18.9g-10.6g£©}{10%}$+100g=300g£»
ËùÓÃÂÈ»¯±µÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊýΪ£º$\frac{20.8g}{300g+19.7g-18.9g-196.8g}$¡Á100%=20%£»
´ð°¸£»£¨1£©Na2CO3+BaCl2=BaCO3¡ý+2NaCl£»
£¨2£©$\frac{106}{x}=\frac{197}{19.7g}$£»
£¨3£©83£º106£»
£¨4£©Ëæ×Å·´Ó¦µÄ½øÐУ¬Ì¼ËáÄÆµÄÖÊÁ¿Öð½¥¼õÉÙ£¬ÂÈ»¯ÄƵÄÖÊÁ¿Öð½¥Ôö´ó£»
£¨5£©20%£®
µãÆÀ ±¾Ì⿼²éÁËÂÈ»¯ÄÆÓë̼ËáÄÆµÄ»¯Ñ§ÐÔÖÊ£¬Í¬Ê±¿¼²éÁË»¯Ñ§·½³ÌʽµÄÊéдÒÔ¼°¸ù¾Ý»¯Ñ§·½³Ìʽ¼ÆËãÈÜÒºµÄÖÊÁ¿·ÖÊý£¬ÒªÇóѧÉúÊìÁ·ÕÆÎÕ³£¼ûÎïÖʵĻ¯Ñ§ÐÔÖÊÒÔ¼°Ïà¹ØµÄ»¯Ñ§·½³Ìʽ£®
| Ñ¡Ïî | ÎïÖÊ | ÔÓÖÊ | ÊÔ¼Á | ²Ù×÷·½·¨ |
| A | Ñõ»¯Í·Û | ̼·Û | ¿ÕÆø | ÔÚ¿ÕÆøÖÐׯÉÕ |
| B | ÂÈ»¯ÑÇÌúÈÜÒº | ÂÈ»¯Í | ¹ýÁ¿µÄÌú·Û | ¹ýÂË |
| C | µªÆø | Ë®ÕôÆø | ×ãÁ¿Éúʯ»Ò | ͨ¹ýÊ¢Éúʯ»ÒµÄ¸ÉÔï¹Ü |
| D | ÂÈ»¯ÄÆÈÜÒº | ÂÈ»¯¸Æ | ¹ýÁ¿Ì¼ËáÄÆÈÜÒº | ¹ýÂË |
| A£® | A | B£® | B | C£® | C | D£® | D |
| A£® | ¼õÉÙÁòÑõ»¯ÎïµÄÅÅ·Å | B£® | ¼õÉÙ̼Ñõ»¯ÎïµÄÅÅ·Å | ||
| C£® | ¼õÉÙÉú»îºÍ¹¤ÒµÎÛË®µÄÅÅ·Å | D£® | ¼õÉÙËÜÁϹºÎï´üµÄʹÓà |
| Ñ¡Ïî | ÎïÖÊ | ÊÔ¼ÁµÈ | ÊÔ¼ÁºÍÏÖÏó |
| A | O2¡¢N2 | ´ø»ðÐÇľÌõ | ľÌõ¸´È¼ÕßΪO2 |
| B | CO¡¢H2 | µãȼ | ÕÖÔÚ»ðÑæÉϵĸÉÔïÉÕ±³öÏÖË®ÖéÕßΪH2 |
| C | Na2SO4¡¢NaHCO3 | Ï¡ÁòËá | ·Å³öÆøÌåÕßΪNaHCO3 |
| D | Cu£¨OH£©2¡¢CuSO4 | Ï¡ÑÎËá | ÈÜÒº³ÊÀ¶É«ÕßΪCu£¨OH£©2 |
| A£® | A | B£® | B | C£® | C | D£® | D |
| A£® | ´ÓÀ¯Öò»ðÑæÖÐÒý³öµÄ¡°°×ÑÌ¡±ÊǶþÑõ»¯Ì¼ÆøÌå | |
| B£® | ÂÌɫֲÎï½øÐйâºÏ×÷Ó÷ųöÄÜÁ¿ | |
| C£® | ÓÉͬÖÖÔªËØ×é³ÉµÄÎïÖʾßÓÐÏàͬµÄÐÔÖÊ | |
| D£® | Ãæ·ÛȼÉÕºó±ä³ÉÌ¿ºÚ£¬ËµÃ÷Ãæ·ÛÖк¬ÓÐÌ¼ÔªËØ |