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- 1. Multiple ChoiceWhat is a substance that is dissolved in another substance?solutionsolutesolventcompound
- 2. Multiple ChoiceWhat is a solvent?The substance that does the dissolving in a solution.The substance that is being dissolved in a solution.The mixing of different substances.The process in which neutral molecules lose or gain electrons
- 3. Multiple Choice
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?
stir the powder in the liquidfreeze the mixtureadd more powder to the liquidstore the mixture in a dark place - 4. Multiple Choiceair is acompoundelementheterogeneous mixturesolution
- 5. Multiple ChoiceAnother name for a homogeneous mixture isan element.a solution.a compound.
- 6. Multiple ChoiceKool-Aid - Powder, sugar, and water
Identify the solventwaterpowdersugarpowder and sugar - 7. Multiple ChoiceWhen Koolaid mix is light colored and tastes watery it is a _______ solution.saturateddiluted
- 8. Multiple ChoiceWhen a Koolaid mix in water is dark in color and very sweet it is a __________ solution.concentratedDiluted
- 9. Multiple ChoiceTo make a solute dissolve more quickly i n a solvent which would you do?Put it in cold water and stir itPut it in warm water and stir it
- 10. Multiple ChoiceThe concentration of a mixture can be increased in which of the following ways?Heating the mixtureAdding more water “solvent”Adding more powder “solute”Stirring the mixture
- 11. Multiple ChoiceWhen a certain amount of solvent cannot hold any more solute it is called a ________ solution.DilutedSaturated
- 12. Multiple ChoiceHow many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?83 grams75 grams40 grams12 grams
- 13. Multiple ChoiceWhich solute is the most soluble at 10 ⁰C?KIKClO3NH4ClNH3
- 14. Multiple ChoiceWhich solute is the least soluble at 90 ⁰C?SO2KClO3KIHCl
- 15. Multiple ChoiceHow does a solution become supersaturated?dissolve lots of solvent in it.dissolve a little solute in it.dissolve more solute than you should be able to.dissolve a super amount of solvent in it.
- 16. Multiple ChoiceWhen 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:supersaturatedsaturatedunsaturated
- 17. Multiple ChoiceWhen 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:supersaturatedunsaturatedsaturated
- 18. Multiple Choice
Which of the following actions will NOT
increase the rate of dissolution
(dissolving)?
Stirring the solution
Decreasing the temperature
Increasing the surface area of the
solute
Increasing the temperature
- 19. Multiple Choice
You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:
saturated
unsaturated
concentrated
warm
- 20. Multiple Choice
How do you know when you have a saturated solution?
You don't see anymore material in the solution. It has dissolved.
The material dissolves and no more will dissolve because you see it collect at the bottom.
The solution is bubbling and cloudy.
The solution is clear and there is nothing at the bottom.
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