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Offline tristan.smith

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Chemical reaction types
« on: March 04, 2010, 02:46:53 AM »
I am having a lot of trouble with chemical reaction types. I understand how to balance a formula and I understand the various reaction types (synergy, combustion, ect). What I do not understand is how to know which kind of reaction will occur given only the reactants.

In my current project I had to put Pb(NO3)2, CaCl2, CuSO4, Na2CO3 and AgNO3 on Aluminum foil, record my observations and then right the chemical reactions (if any) that took place. From what I gather the Al only reacted with the Pb(NO3)2, Na2CO3 & CuSO4.  But I do not have any idea what kind of reaction types those were or how to go about writing the formulas for them at all. I have read that chapter in my book over and over but I am missing something.

Hope someone here can help, I am feeling really dumb :( I really don't want just answers here, I truly want to understand what I am missing.

Thanks

Offline Borek

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Re: Chemical reaction types
« Reply #1 on: March 04, 2010, 03:10:59 AM »
Do you know reactivity series?

What is pH of Na2CO3 solution? What happens to Al in that pH?

There is no one single/simple rule that covers everything.
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Offline tristan.smith

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Re: Chemical reaction types
« Reply #2 on: March 04, 2010, 11:57:49 PM »
Do you know reactivity series?

What is pH of Na2CO3 solution? What happens to Al in that pH?

There is no one single/simple rule that covers everything.

I do not, I am looking at our class schedule and acids/bases aren't something we're discussing until next week. I am so completely lost here.  :(

Offline Borek

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Re: Chemical reaction types
« Reply #3 on: March 05, 2010, 02:58:18 AM »
I understand the various reaction types (synergy, combustion, ect).

Synergy is a reaction type? Each day I learn something new  :P

Honestly - to classify the reaction you need to know what have happened. IMHO to know what have happened in the cases described here you need concepts I have listed.
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Offline tristan.smith

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Re: Chemical reaction types
« Reply #4 on: March 05, 2010, 11:18:30 PM »
Well, I am able to skip it and come back without it effecting my grade, so I am going to do next week's project now and see if that helps this week's make more sense :) Thanks for the pointer at least :)

And I meant synthesis, not synergy. I was a very sleepy lady.

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