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When something reacts, that is a chemical reaction. Chemical change.
Reacts
chemical
This is a chemical reaction (dito change).
This is an oxidation reaction.
Chemical- Iodine reacts with the starch of the bread.
When something reacts, that is a chemical reaction. Chemical change.
Reacts
Chemical reaction
chemical
Starch turns blue when Iodine is introduced. Added: Though it's not quite a chemical reaction, Iodine will give starch a bluish purple color but it stays chemically UNchanged. Iodine stays reddish brown with glucose and many other oligosaccharides (up till about 10 to 15 monomeric glucose units)
Compound
Iodine can mix with anything you, But it only reacts with a certain number of stuff. One reaction is: H2(g) + I2(g) --> 2HI(g) = Iodine and hydrogen mixed together Iodine also mixes with Fluorine, Bromine, It also reacts with to Chlorine, nitric acid, iodic acid.
This is a chemical reaction (dito change).
It is a chemical reaction. The coal (which is mostly carbon) reacts with oxygen to form carbon dioxide.
If something reacts with water to form a gas, it's demonstrating a chemical property. The reaction has caused it to become something new, which is a telltale sign of a chemical property.
Iodometric titration is synonymous with redox titration method. Iodine is a universal laboratory reagent because it reacts directly with an array of organic and inorganic substances. Since iodometric titration is a form of redox or oxidation-reduction reaction, it can accurately measure the amount of oxidizing or reducing agents in a chemical reaction. Also, it can be reversed to either direction in an iodine/iodide reaction.