Chemistry Properties and Structure of Matter: Properties of Matter - Separation Techniques Part 4

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Arts, Other, Chemistry, Science, Physics
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4th Grade - University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of this lesson on separation techniques?
Solubility and magnetism
Electrostatic attraction
Particle size and density
Melting and boiling points
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a separation technique based on solubility?
Magnetism
Filtration
Solution
Crystallization
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of separating coffee from sand, what role does water play?
It acts as a solvent
It acts as a filter
It acts as a residue
It acts as a solute
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to a solution when it becomes saturated?
It becomes less dense
Excess solute forms a separate layer
It forms a homogeneous mixture
It can dissolve more solute
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does temperature affect the solubility of most salts in water?
Solubility decreases with temperature
Solubility remains constant
Solubility is unaffected by temperature
Solubility increases with temperature
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the crystallization process?
Cooling the solution
Heating the solvent
Adding more solute
Filtering the solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which metals can be separated using magnetic separation?
Gold, silver, and platinum
Aluminum, zinc, and lead
Copper, plastic, and water
Iron, nickel, and cobalt
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