Cornstarch is a polymer, so it doesn't have an exact formula but what I found on the web the formula is similar to this: C6H11O5 - (C6H11O5)x - C6H11O6 where x is a very high number.
It is a complex carbohydrate that has no exact formula.
Do it at home as an experiment on the stove
Cornstarch is just that, the starch from corn juice. It has no other ingredients. If you meant what is its chemical formula, we'll have to hear from other people.
There is none as there is no chemical reaction.
I have come up with this as an equation for Baking Powder. The chemical formula is as follows:NaHCO3 + NaAl(SO4)2 + CaHPO3 +(Sodium Bicarbonate) + (Sodium Aluminum Sulphate) + (Acid Phosphate of Calcium) + C6H10O5 (Starch or Cornstarch)
Starch is a polysaccharide.
it changes the color of cornstarch *improvement* No, its a physical reaction.
This mixing is not a chemical reaction.