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kotegsom [21]
3 years ago
13

Is photosynthesis endothermic or exothermic, why?

Chemistry
1 answer:
Misha Larkins [42]3 years ago
8 0

Answer: I think A is right

Explanation: Photosynthesis needs light so it is endothermic,

Oxygen in water is oxidised and Oxygen is released in process.

Free energy is temperature dependent. But also Carbo dioxide

involves reaction. You needs to find out Calvin-Benson cycle

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Your teacher needs a 3.0M solution acid, but only has a 12.0M stock solution of sulfuric acid in the chemical store room. Calcul
arlik [135]

Answer:

The calculations are in the explanation below.

The <em>steps </em>are:

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  • 3. Add distilled water up to the mark
  • 4. Cap the flask with the stopper
  • 5. Stirr by gently rotating the flask.

Explanation:

To make 100 mililiter of the 3.0M solution of sulfuric acid, first you must calculate the volume of the 12.0M stock solution that contains the same number of moles as the diluted solution.

For that, you use the dilution formula:

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Then, the steps are:

1. Using a graduated pipette, accurately take 25mL of the 12.0M stock solution.

2. Pour the 25mL of stock solution into a 100 mL volumetric flask

3. Add distilled water up to the mark

4. Cap the flask with the stopper

5. Stirr by gently rotating the flask.

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