What is the main topic of the video presented by Mrs. T?

Hydrates and Their Properties

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Percent composition of hydrates
Chemical reactions
Periodic table trends
Atomic structure
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the prefix 'Penta' indicate in the formula of a hydrate?
Six water molecules
Three water molecules
Five water molecules
Four water molecules
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the gram formula mass of a hydrate calculated?
By adding the masses of all elements in the compound
By multiplying the mass of water by the number of molecules
By subtracting the mass of water from the total mass
By dividing the total mass by the number of elements
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percentage of water in copper sulfate pentahydrate?
50%
32%
36%
45%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a sample problem, what is the percentage of water if 0.8 grams of water is present in a 2.5 grams sample?
32%
45%
36%
28%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a crucible in hydrate experiments?
To dissolve the hydrate
To contain the hydrate during heating
To measure the volume of the hydrate
To observe color changes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the color of a hydrate when it is heated and becomes anhydrous?
It becomes more vibrant
It turns grayish or loses color
It becomes transparent
It turns black
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