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2 years ago

How do you test for starch in green plant

Chemistry

2 answers:

Vinil7 [7]2 years ago

7 0

Answer:

1.Iodine solution is used to test leaves for the presence of starch. ...

2.After a few minutes, the parts of the leaf that contain starch turn the iodine from brown to blue/black.

3.The leaf on the left is a variegated leaf.

Sunny_sXe [5.5K]2 years ago

4 0

Answer:

1,Iodine solution is used to test leaves for the presence of starch. ...

2.After a few minutes, the parts of the leaf that contain starch turn the iodine from brown to blue/black.

3.The leaf on the left is a variegated leaf

Explanation:

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385 J of heat are needed to heat a piece of aluminum from 22°C to 45°C. If the specific heat of Al is 0.90 J/g°C, what is the ma

VikaD [51]

Answer:

M of Al=33.09g or 0.0331kg

Explanation:

Heat Energy= specific heat*mass*change in temperature

H=M*C*T

make M subject of the formula

M=H/CT

M=685J/0.90J/g°C*(45°C-22°C)

M=685J/0.90J/g°C*23°C

M=685J/20.7J/g

M=33.09g or 0.0331kg

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