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exis [7]
3 years ago
10

When iodine is added to foods with no starches it turns

Chemistry
1 answer:
Monica [59]3 years ago
5 0

Answer:

Add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour. A blue-black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow

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Two chemical reactions are shown:
galben [10]

Answer: A

Explanation:

In both equations 2 things make one product

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3 years ago
How much energy is needed to raise the temperature of a 200 g piece of lead by 250 o C?
devlian [24]

<u>Answer:</u> The amount of energy required to raise the given amount of temperature is 6400 J

<u>Explanation:</u>

To calculate the heat absorbed by the lead, we use the equation:

q=mc\Delta T

where,

q = heat absorbed

m = mass of lead = 200 g

c = heat capacity of lead = 0.128 J/g°C

\Delta T = change in temperature = 250°C

Putting values in above equation, we get:

q=200g\times 0.128J/g^oC\times 250^oC=6400J

Hence, the amount of energy required to raise the given amount of temperature is 6400 J

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3 years ago
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OLEGan [10]

Answer:

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Explanation:

3 0
2 years ago
List 3 scenarios for a substance being classified as a weak acid
malfutka [58]
A way to classify an acid as being weak is to determine how strongly the substance conducts electricity. If the acid or base conducts electricity strongly, it is a strong acid or base. If the acid or base conducts electricity weakly, it is a weak acid or base.
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4 years ago
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What is an empirical formula
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