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Topic: Please Help: CaCO3+Zn-->??  (Read 5116 times)

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Offline pnonso

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Please Help: CaCO3+Zn-->??
« on: April 03, 2007, 06:08:55 PM »
Hi guys, anyone who can tell me the products of CaCO3+Zn+Heat please, it would be greatly appreciated.
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Offline constant thinker

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Re: Please Help: CaCO3+Zn-->??
« Reply #1 on: April 03, 2007, 09:33:12 PM »
Number 4 on this website will help you out a lot.

I'll give you a hint on how to start also. Write out what you know for the chemical equation, and then think about what might happen.
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Offline pnonso

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Re: Please Help: CaCO3+Zn-->??
« Reply #2 on: April 04, 2007, 12:00:04 AM »
Always cryptic answers!  :)  .This is not homework, and though I am in my first year of chemistry, we did this unit a while back and didn't do more than 2 elements per molecule. From those lessons, I would say CaZn+ CO3 for the products, but I am pretty sure that is wrong. Which is why I am asking the question, lol. Thanks for the response though.
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Offline AWK

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Re: Please Help: CaCO3+Zn-->??
« Reply #3 on: April 04, 2007, 01:19:54 AM »
Quote from: pnonso on April 03, 2007, 06:08:55 PM
Hi guys, anyone who can tell me the products of CaCO3+Zn+Heat please, it would be greatly appreciated.
Constant thinker forced you to read forum rules.
You question is unprecise. What do you mean under term "heat" - 100, 200, 1000 C or more.
Zn is unable to reduce CaCO3 during warming. Over 800 C CaCO3 decomposes to CaO and CO2. At this temperature Zn will reduce CO2 to CO.
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AWK
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