Try: 1. CVS 2. Jewel 3. Dominicks If they don't have them at any of the above, there are some seriouse problems.
Many naturally occurring substances, including some minerals, contain the carbonate ion, CO3-2. These include eggshells, snail shells, clamshells, oyster shells, many seashells, chalk, coral, limestone, marble, aragonite, and dolomite. Manufactured substances, such as baking soda, washing soda, and some antacids (e.g., Tums), also contain carbonate. Most of the carbonate compounds are not water soluble, but will react with aqueous acids. Many of the naturally occurring substances listed above contain calcium carbonate, which will react with vinegar (an acetic acid solution) used in this experiment, according to the following equation: 2 HC2H3O2 (aq) + CaCO3 (s) ? Ca(C2H3O2)2 (aq) + H2O (l) + CO2 (g) The disappearance of the solid and the formation of gas bubbles are visual indications of reaction. Many minerals are not carbonates; for example, granite, silica, quartz, magnetite, lava, pumice, mica, clays, etc. These, along with other naturally occurring and manufactured noncarbonate compounds, will not react with acid to produce a gas. Moral of the story.it dissloves.both do!!
The marble chips and chalk are both calcium carbonate. They will dissolve in vinegar (acetic acid) to give off CO2 and calcium acetate in solution
