1. Withings Body Cardio. Measures: Full-body composition, body fat, water percentage, muscle and bone mass. Perfect for: Fitness and health fiends. Selling points: Accuracy; compatible with more third-party apps and devices than the other smart scales we tested. Drawbacks: None.
In this reaction, baking soda acts as a base, and takes a proton from vinegar, which is an acid. The reaction releases gas because when the baking soda receives the proton, it transforms into water and carbon dioxide.
The chemical reaction actually occurs in two steps. First, there is double displacement reaction in which acetic acid in vinegar reacts with sodium bicarbonate to form sodium acetate and carbonic acid: NaHCO 3 + HC 2 H 3 O 2 â NaC 2 H 3 O 2 + H 2 CO 3. Carbonic acid is unstable and undergoes a decomposition reaction to produce the carbon dioxide gas :