Sandbox dw1 004

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+ 2HCl + CaCO<sub>3</sub> = Ca<sup>2+</sup>
+ 2HCl + CaCO<sub>3</sub> = Ca<sup>2+</sup>
 +
- In South America.
- In South America.
+ In North America.
+ In North America.

Revision as of 12:08, 13 July 2010

hi

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1. Where's New York City?

2HCl + CaCO3 = Ca2+
In South America.
In North America.
In Brazil.

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