ECM
Mix it up
Solution
Speed it up
Solubility
100
Water. Element, compound or mixture?
Water. Compound
100
Water and sand. Homogeneous or heterogeneous mixture?

Water and sand. Heterogeneous mixture.
100
The part of the solution that dissolves is the ______
The part of the solution that dissolves is the SOLUTE
100
How does stirring affect the rate of dissolving?
The more you stir, the faster the rate of dissolving.
100
If you put one teaspoon of sugar in 1 cup of water, the solution is (Unsaturated/Saturated/Supersaturated)
If you put one teaspoon of sugar in 1 cup of water, the solution is (Unsaturated)
200
Soda. Element, compound or mixture?
Soda. Mixture
200
Sugar water. Homogeneous or heterogeneous mixture?

Sugar water. Homogeneous mixture
200
Name two solutes found in soda
Solutes IN SODA: carbon dioxide gas, sugar, salt, food coloring
200
How does solute size affect the rate of dissolving?
The smaller the solute, the faster the rate of dissolving.
200
On a solubility graph, if the point is above the line, the solution will be (Unsaturated/Saturated/Supersaturated)
On a solubility graph, if the point is above the line, the solution will be (Supersaturated)
300
Sugar. Element, compound or mixture?
Sugar. Compound
300
Air. Homogeneous or heterogeneous mixture?

Air. Homogeneous mixture?

300
What type of mixture is a solution?
What type of mixture is a solution? Homogeneous mixture
300
Increasing the temperature usually increases the rate of dissolving, except ____
Increasing the temperature usually increases the rate of dissolving, except WHEN IT COMES TO GASES
300
Solubility refers to ______________ solute can ___________________ in a solvent.
Solubility refers to HOW MUCH solute can DISSOLVE in a solvent.
400
Iron. Element, compound or mixture?
Iron (Fe). Element
400
Why is water not a mixture?
Water is a compound. Also, you cannot separate water molecules physically.
400
Name one solute and solvent of air.
Solvent: nitrogen
. Solute: oxygen /argon/carbon dioxide
400
Explain why the rate of dissolving is faster in a cup of hot water than a cup of cold water.
The molecules or particles move and spread out faster.
400
What is an unsaturated solution?
A unsaturated solution is a solution where you can still dissolve more solute.
500
Brass. Element, Compound or Mixture?

Brass. Mixture of copper and zinc
500
How would you separate a sand and salt mixture so you have sand and salt by themselves?
Use water to dissolve salt.
 Use filter to filter sand.
 Boil or evaporate water.
500
Name the solute and solvent of either 14K gold or steel
14 K Gold: Silver (solute) and Gold (solvent). Steel: Carbon (solute) and Iron (solvent).
500
How does pressure affect the rate of dissolving of GASES?
The greater the pressure, the faster the rate of dissolving.
500
What is a saturated solution?
A saturated solution cannot dissolve any more solute (has the maximum amount of solute dissolved).
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