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Formation of Compound Lab BW
By Danielle Smith
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Last updated 2 days ago
10 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Crucibles will do what very easily?
break
stain
scratch
What will the oil on your skin affect the measurement of?
mass of the product
mass of the crucible
magnesium to use
What are you sanding in step 4?
the table
the strip of magnesium
the ring stand
How long should you heat the crucible before you open the vents in step 7?
1 minute
2 minutes
30 seconds
When should you stop opening the lid of the crucible to allow oxgen in?
once the magnesium fails to ignite and is complete ash
once the magnesium is begins turing bright white
when the smoke begins to come out
How long should you allow the crucible to cool before you being adding the water?
5 minutes
2 minutes
30 seconds
How long should you heat the crucible in step 9 after you add the drops of water?
2 minutes
1 minute
30 seconds
How long should you allow the crucible to cool in step 10?
3 minutes
until it is room temperature
until it is cold
How long should you reheat your crucible in step 11?
3 minutes
1 minute
2 minutes
How long should you allow the crucible to cool again in step 11?
until it is room temperature
3 minutes
until it is cold