Scarlett Adams——Works at the Global Education Initiative, Lives in New York, NY.
Toss a spoonful of baking soda into a bowl. Add a splash of vinegar or lemon juice or other acidic liquid. If the mixture fizzes heavily, the baking soda is still good. If you don't get much of a fizz, your baking soda has gone bad.read more >>
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.