What properties can you use to identify if a substance is salt, baking soda or cornstarch?

The cornstarch and water mixture acts like a solid sometimes and a liquid at other times. This concoction is an example of a suspension (a mixture of two substances), one of which is finely divided and dispersed in the other ... When you slap the cornstarch quicksand, you force the long starch molecules closer together.

Answer:i believe its water, vinegar, and iodine solution ... sorry if wrong