) When testing with water, what physical property was being identified? When testing the powders with water, the physical property of solubility was tested. 2.) Which items appeared to be water soluble? The items that appeared to be water soluble were the baking soda, the unknown substance, cornstarch, and possibly the baking powder (hard to tell because it mostly became bubbles that stayed and didn't go away). 3.) Which items were not water soluble? The items that weren't water soluble were the cream of tartar…
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