crime busters powders test

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What is cornstarch?

Back

Cornstarch is a white powder derived from corn, with a pH of 6-7. It does not react with hydrochloric acid (HCl) and turns black when iodine is added.

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What is Alka-Seltzer?

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Alka-Seltzer is a white powder with a pH of 6-7 that fizzes when mixed with hydrochloric acid (HCl) and iodine. Its chemical formula is C16H17NaO14.

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What is baking soda?

Back

Baking soda, also known as sodium bicarbonate, is a white powder with a pH of 8. It fizzes in hydrochloric acid (HCl) but does not react with iodine. Its formula is NaHCO3.

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What is sodium acetate?

Back

Sodium acetate is a white powder with a pH of 8. It does not react with hydrochloric acid (HCl) or iodine. Its chemical formula is NaC2H3O2.

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What is yeast?

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Yeast is a tan powder used in baking and fermentation. It is a living organism that helps dough rise.

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What is the significance of pH in powders?

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pH indicates the acidity or alkalinity of a substance. It helps in identifying and differentiating between various powders.

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What happens when cornstarch is mixed with iodine?

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Cornstarch turns black when mixed with iodine, indicating the presence of starch.

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What is the reaction of baking soda with hydrochloric acid?

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Baking soda fizzes when it reacts with hydrochloric acid (HCl), producing carbon dioxide gas.

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What is the appearance of sodium acetate?

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Sodium acetate appears as a white powder and is used in various chemical applications.

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How can you identify Alka-Seltzer?

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Alka-Seltzer can be identified by its fizzing reaction with both hydrochloric acid (HCl) and iodine.