Multiple choice

Chemically, baking soda is

  1. calcium phosphate

  2. sodium bicarbonate

  3. sodium chloride

  4. baker's yeast
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Baking soda is the common name for sodium bicarbonate (NaHCO3). It is used in cooking as a leavening agent because it releases carbon dioxide when heated or reacted with acid.

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