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.
Well, there is no chemical reaction, really, since the cornstarch still remains cornstarch. (and if you dry it, it becomes cornstarch again) It's just that the cornstarch lightly bonds to the water which then lightly bonds to other cornstarch, creating a net-like substance. This net is easily broken and made, thus increasing the viscosity of the fluid and adding some other interesting properties to it as well.
Yes, you can separate cornstarch from water by letting the mixture sit until the cornstarch settles to the bottom, then carefully pouring off the water. You could also use centrifugation to separate the cornstarch by spinning the mixture at high speed to force the cornstarch to the bottom of the container.
No, mixing cornstarch with water is not a chemical reaction. It is a physical change. The cornstarch particles disperse throughout the water, but no new substances are formed.
Yes, cornstarch can dissolve in water to form a mixture called a suspension. When stirred, the cornstarch particles disperse in the water but do not fully dissolve like sugar or salt would.
Cornstarch and water mixed.
with cornstarch and water
Cornstarch does not dissolve in oil; rather, it is hydrophilic and dissolves in water. When mixed with oil, cornstarch may form a suspension or paste, but it won't dissolve like it does in water. The two substances have different polarities, which prevents cornstarch from fully integrating into the oil.
An emulsion is a mixture of two immiscible liquids. Cornstarch is a solid and this mixture is a suspension.
No, you cannot separate cornstarch from water using filter paper alone because cornstarch particles are too small to be captured by the filter paper. You would need to use a more advanced separation technique like centrifugation or evaporation to separate cornstarch from water effectively.
The water actually passes through the filter paper and the cornstarch. However, the cornstarch does not pass through the filter because the molecules are to large.
No.
you can get water and cornstarch and mix it