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C20H14O4

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The atoms in the baking soda and vinegar break their bonds and recombine to form gaseous carbon dioxide and making it fizz

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CH3COOH + NaHCO3 = CH3COONa + CO2 + H2O.

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Sulfur dioxide has a very obvious strong, choking odor. The compound formed in this reaction is hydrogen sulfide (H 2 S). Hydrogen sulfide has one of the best known odors of all compounds. It smells like rotten eggs.

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Sulfur dioxide has a very obvious strong, choking odor. The compound formed in this reaction is hydrogen sulfide (H 2 S). Hydrogen sulfide has one of the best known odors of all compounds. It smells like rotten eggs.

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Phenolphthalein changes color to show the pH of certain solutions. Phenolphthalein stays colorless in acidic solutions and turns pink in alkaline solutions. Sodium hydroxide is a base, so when you add phenolphthalein, the solution turns pink.

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The combining of baking soda with calcium chloride results in a temperature rising. The products release more energy than was needed to break the bonds in the reactants. This energy is released in the form of heat

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NaHCO3

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soap scum. A soap solution to an Epsom salt solution to produce a soap scum precipitate.

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When sugar and
sulfuric acid form, the new substances are carbon, a brittle black solid, and water vapor, a colorless gas. The properties of these new substances are not at all
like the properties of sugar and sulfuric acid.