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Adding water can often slow down a chemical reaction by diluting it. This is the case of a quantitative reaction such as an enzymatic reaction.
Temperature
to check the approximatedly amount of starch in it since starch in reaction with iodine a black purple colour is formed
It will increase or decrease the speed of the chemical reaction.
Adding a catalyst a chemical reaction can occur with a lower activation energy.
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
Adding water can often slow down a chemical reaction by diluting it. This is the case of a quantitative reaction such as an enzymatic reaction.
Temperature
to check the approximatedly amount of starch in it since starch in reaction with iodine a black purple colour is formed
It will increase or decrease the speed of the chemical reaction.
The purpose is to make it sweet.
By testing whether adding iodine darkens it.
by adding an inhibitor
There are not much purpose of that.
Adding a catalyst a chemical reaction can occur with a lower activation energy.
It will pop
Hydrolysis reaction