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Vladimir79 [104]
3 years ago
8

Which substance can not be decomposed by a chemical change? (1) AlCl3 (3) HI (2) H2O (4) Cu

Chemistry
2 answers:
user100 [1]3 years ago
5 0
Cooper is the substance that can't be decomposed by a chemical chAnge. So 4)
adoni [48]3 years ago
3 0
<span>The answer I choose is option (4) Copper</span>
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A:-      sn(s) =>  Sn +2(0.24 M) + 2e-
B:-     Sn +2 (0.87 M) +2e-  =>   Sn(s) 

solution will become more concentrated and solution B become less concentrated 

Sn(s)+ Sn +2(0.87 ) ----> Sn(s) + Sn  +2(0.24)
E  =   Eo  -   0.0592 / 2 * log   [   (0.24 / 0.87 ) ]
E  = 0.0   -   0.0592 / 2   *   log ( 0.275) 
( n=2 two electrons are transferred)

E =  -0.0296 *  ( - 0.560) 
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sleet_krkn [62]

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2 years ago
Question 1<br><br> Of the following which displays a positive energetic process?
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A positive energetic reaction or process is often referred to as being Endothermic. This means that the system which is performing the process absorbs energy. Some examples include:

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<em>Since I could not locate the options online, I have provided a general explanation of the concept coupled with a few examples.</em>

<em />

<em />

To learn more visit:

brainly.com/question/4345448?referrer=searchResults

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