Exploration Questions
- Could you distinguish the powders just by looking at them? -No you cannot distinguish the powders just by looking at them.
- What did you observe when you added the different liquids to each powder? (i.e., what were your results?)
- If you were given one of the powders, as an unknown, could you identify it? How? Why?- If one of the powders were given as unknown I would be able to identify it, by observing how the given unknown powder reacts with the potassium. Using the potassium would be the best liquid to use first because each powders color reacted differently with the potassium. If the powder turns yellow then the powder is obviously baking soda because baking soda was the only powder that turned yellow. If the powder turns grey then brown it could either be baking powder or corn starch, to figure out which of the two the unknown powder is I would use either water or vinegar to distinguish it; if the powder bubbles and fizzes it is baking powder, if it doesn't then its corn starch.
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