When performing a scientific investigation on an unknown substance, how can an indicator help you determine if the substance is a starch?(1 point)
Responses
The indicator will change the color of the substance.
The indicator will change the color of the substance.
The indicator will change the smell of the substance.
The indicator will change the smell of the substance.
The indicator will change the state of the substance.
The indicator will change the state of the substance.
The indicator will change the taste of the substance.
The indicator will change the color of the substance.
The correct response is: The indicator will change the color of the substance.
An indicator is a substance that changes color when it comes into contact with specific chemicals. In the case of starch, a common indicator used is iodine solution. When iodine solution is added to a substance that contains starch, it will turn the substance blue-black in color. This color change indicates the presence of starch in the substance being tested.