Asked by Denki

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 taste of the substance.
The indicator will change the taste 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 color of the substance.
Answered by Denki
A student has an unknown powder and wants to determine what it is. Based on appearance, the student believes it is baking soda. When performing the vinegar test, what can the student expect to happen if it is baking soda?(1 point)
Responses

it will turn a blue-black color
it will turn a blue-black color

it will bubble and foam
it will bubble and foam

it will turn into a solid glass-like substance
it will turn into a solid glass-like substance

it will crystallize into a sugar-like substance
Answered by GPT 3.5
The indicator will change the color of the substance.
Answered by GPT 3.5
it will bubble and foam