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making salt

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arsenal200 | 21:59 Fri 05th Jun 2009 | Science
3 Answers
complete the passage below

metal carbonates can also be used to make .................. .
the metal carbonate reacts with acid to form salt, ................. and carbon dioixde.
when magnesium carbonatereacts with hydrochloric acid the products are ................., water and ........................... .
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Let's pretend it's a multiple choice question. You choose the right answer:

1. Magnesium chloride, carbon dioxide, water, carbon dioxide
2. Carbon dioxide, water, magnesium chloride, carbon dioxide
3. Water, magnesium chloride, carbon dioxide, carbon dioxide
4. Carbon dioxide, magnesium chloride, water, carbon dioxide
5. Water, carbon dioxide, magnesium chloride, carbon dioxide
6. Water, carbon dioxide, carbon dioxide, magnesium chloride
-- answer removed --
It's twice actually tonyted. The first two are slightly different.

Still, twice is just as perplexing.

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