When performing a scientific investigation on an unknown substance how can an indicator help you determine if a substance is a starch
8 answers
Adding I2 (usually made by dissolving solid I2 in KI solution to make [I3]^-) to starch produces a color change to a dark blue (sometime so dark it is black). You can try this at home by placing a drop of tincture of iodine (usually in a home medicine cabinet) onto the inner part of a potato. Works every time for me.
? I dont understand
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1. cornstarch
2. the indicator will change the color of the substance
3. it will bubble and foam
4. baking a cake
5. the balloon inflated
2. the indicator will change the color of the substance
3. it will bubble and foam
4. baking a cake
5. the balloon inflated
its a
joe biden
lol
A student is performing a Benedict’s test on an unknown substance. The student adds the reagent (the chemical required to make a color change), and nothing happens. Which conclusion can the student make?
Answer: The test was inconclusive because the student forgot to add heat.
Answer: The test was inconclusive because the student forgot to add heat.