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why does N2 + 3 H2----> 2 NH3 + heat symbolize a decrease in entropy???

Started by petstar21 | Last post by mnakhla April 30, 2008, 09:59:39 AM

2 Replies
3094 Views
Last post April 30, 2008, 09:59:39 AM
by mnakhla
Why does noting happen in this reaction (redox reaction)?

Started by Makaveli | Last post by AWK June 18, 2013, 08:46:32 AM

1 Replies
1076 Views
Last post June 18, 2013, 08:46:32 AM
by AWK
Why does Oxygen burn?

Started by njgrl2 | Last post by UkraineWithAim March 30, 2006, 04:11:57 AM

2 Replies
3348 Views
Last post March 30, 2006, 04:11:57 AM
by UkraineWithAim
Why does phenolpthalein changes colour when Na2CO3 neutralises to NaHCO3?

Started by Aakash | Last post by Borek May 24, 2013, 02:52:55 AM

2 Replies
1288 Views
Last post May 24, 2013, 02:52:55 AM
by Borek
Why does Silver (Ag) have 1 electron in its 5th energy level?

Started by khaoz | Last post by Mr T February 14, 2006, 01:17:43 AM

3 Replies
4253 Views
Last post February 14, 2006, 01:17:43 AM
by Mr T
Why does sodium acetate and acetate ion have the same basicity?

Started by JoachimF | Last post by Yggdrasil May 28, 2007, 02:41:18 PM

4 Replies
3653 Views
Last post May 28, 2007, 02:41:18 PM
by Yggdrasil
Why does Sodium Have a lower melting point than Octasulfur (S8)?

Started by bananabandana | Last post by Hunter2 November 27, 2013, 01:24:00 AM

1 Replies
2325 Views
Last post November 27, 2013, 01:24:00 AM
by Hunter2
why does steeping tea in hot water reduce its caffeine content?

Started by peter chen | Last post by vmelkon April 07, 2011, 12:11:58 PM

1 Replies
1636 Views
Last post April 07, 2011, 12:11:58 PM
by vmelkon
Why Does The Atom Ne Not have electronegativity?

Started by tehkorean | Last post by Mitch January 19, 2009, 10:44:14 PM

1 Replies
3682 Views
Last post January 19, 2009, 10:44:14 PM
by Mitch
5 Replies
5755 Views
Last post July 13, 2011, 04:29:16 AM
by AWK
Why does the OH break first (pH buffering of 2-ammino acids)

Started by Nandosch3m | Last post by Babcock_Hall July 19, 2019, 10:51:59 AM

1 Replies
557 Views
Last post July 19, 2019, 10:51:59 AM
by Babcock_Hall
why does the ph decrease when the acid is heated

Started by 123biteme321 | Last post by Borek March 05, 2011, 05:18:59 AM

2 Replies
3210 Views
Last post March 05, 2011, 05:18:59 AM
by Borek
3 Replies
204 Views
Last post March 01, 2021, 11:42:33 PM
by Vidya
Why does the pH sof hydrogen phosphate buffer remain constant when...

Started by lexi105 | Last post by DevaDevil November 21, 2006, 10:06:17 PM

1 Replies
5902 Views
Last post November 21, 2006, 10:06:17 PM
by DevaDevil
Why does the reaction between HCl + NH3 happen?

Started by gleeman | Last post by gleeman July 20, 2007, 09:24:16 AM

4 Replies
8450 Views
Last post July 20, 2007, 09:24:16 AM
by gleeman
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