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.
ACETYLENE reacts with alkali metals, forming hydrogen gas. Acetylene can react explosively with bromine [Von Schwartz 1918. p.142]. Acetylene forms a sensitive acetylide when passed into an aqueous solution of mercuric nitrate [Mellor 4:933.