I'm doing a project and NO ONE can answer this question!!!! If I put baking soda and salt into boiling water it makes bubbles. Why?? IS there something in the Baking Soda and Salt that makes it act this way?? Please help me. =)
2006-10-26 17:20:16 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The one responsible for the bubbles is the baking soda (Sodium Bicarbonate). Salt (Sodium Chloride) has nothing to do with it. In the mixture you have, there are sodium ions Na+, bicarbonate anions HCO3-, and chloride ions Cl-. When it boils, your bicarbonate anions decompose to carbon dioxide CO2 and hydroxide ions OH-. CO2 is gas; and therefore if forms the bubbles.
2006-10-27 18:45:28 · answer #1 · answered by titanium007 4 · 0⤊ 0⤋
The salt isn't doing anything. What you are doing is heating the baking soda which is sodium hydrogen carbonate (NaHCO3). When that is heated (or mixed with any acidic substance like vinegar or lemon juice) the hydrogen carbonate part decomposes into carbon dioxide gas. That's what the bubbles are.
2006-10-27 00:30:54 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋
did you try with just the baking soda alone? anyway, if i'm not wrong, baking soda will form carbon dioxide gas which in turn creates the bubbles.
2006-10-27 00:32:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋