What is the chemical formula of baking soda?
Answer and explanation
Correct answer: C.
- Step 1: Baking soda is the common domestic name for the chemical compound sodium hydrogen carbonate (sodium bicarbonate).
- Step 2: The compound is composed of sodium cations () electrostatically paired with hydrogen carbonate polyatomic anions ().
- Step 3: Combining these ions in a stoichiometric ratio yields the neutral chemical formula .
Answer
.
Why not the others: is calcium carbonate (limestone/chalk); is washing soda (sodium carbonate); is caustic soda (sodium hydroxide).
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