What is the purpose of using a conical flask in the crystallization experiment?
Instant Crystals

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Science, Chemistry, Physics
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6th - 12th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To store the final crystals
To act as a heat source
To dissolve sodium ethanoate in water
To measure the temperature of the solution
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the sodium ethanoate crystals when water is added?
They immediately crystallize
They remain unchanged
They dissolve completely
They begin to dissolve but the solution becomes saturated
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to cool the solution slowly after heating?
To prevent the solution from evaporating
To speed up the crystallization process
To ensure the solution remains clear
To avoid disturbing the supersaturated state
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the solid sodium ethanoate play in the crystallization process?
It acts as a solvent
It serves as a nucleation site
It prevents crystallization
It dissolves in the solution
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the crystallization process create a stalagmite structure?
By cooling the solution quickly
By heating the solution rapidly
By stacking crystals on top of each other
By dissolving the crystals in water
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the crystallization in hand warmers?
Adding more water
Heating the solution
Snapping a small piece of metal
Cooling the solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of reaction occurs when the hand warmer crystallizes?
Endothermic reaction
Decomposition reaction
Exothermic reaction
Neutralization reaction
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