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- 1. Multiple Choice
Give the meaning of solvent
A homogenus mixture from two or more substances
Substance that dissolves in other substances
Solids that do not dissolve in liquids
Substance that dissolves other substances
- 2. Multiple Choice
Give the meaning of solution
A homogenus mixture from two or more substances
Substance that dissolves in other substances
Solids that do not dissolve in liquids
Substance that dissolves other substances
- 3. Multiple Choice
Give the meaning of solute
A homogenus mixture from two or more substances
Substance that dissolves in other substances
Solids that do not dissolve in liquids
Substance that dissolves other substances
- 4. Multiple Choice
What is these phrases suspended particles means
A homogenus mixture from two or more substances
Substance that dissolves in other substances
Solids that do not dissolve in liquids
Substance that dissolves other substances
- 5. Multiple Choice
Ensure the following mixture is
solvent
solution
suspension
colloid
- 6. Multiple Choice
Ensure the following mixture is
solvent
solute
suspended particles
suspension
- 7. Multiple Choice
Ensure the following mixture is
Solute
solvent
solution
colloid
- 8. Multiple ChoiceWhat word describes when water is attracted to other substances?cohesionadhesioncapillary actionsurface tension
- 9. Multiple ChoiceTrue or false water is a polar molecule?TrueFalse
- 10. Multiple ChoiceThe attraction that causes water and other liquids to form drops is called ________________. This is also water’s ability to be attracted to other water molecules.adhesioncapillary actioncohesionsurface tension
- 11. Multiple ChoiceIn 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 - 12. Multiple ChoiceA solution that is considered dilute would be....Dark in colorHave a strong scentHave a large amount of soluteHave a small amount of solute
- 13. Multiple ChoiceWhen a solvent contains as much of the solute as it can hold, the solution is said to besupersaturateddilutedsaturatedunsaturated
- 14. Multiple Choice
Would sugar dissolve in gasoline?
Yes
No
- 15. Multiple Choice
A solution in which no more solute can be dissolved.
supersaturated
saturated
concentrated
dilute
- 16. Multiple Choice
Generally, the solubility of a solute goes up as the temperature increases.
True
False
- 17. Multiple Choice
Which of the following usually makes a substance dissolve faster in a solvent?
Stirring
Raising the temperature
Increasing the surface area
All the other answers are correct
- 18. Multiple ChoiceWhat two elements make up water?Helium and oxygenHydrogen and oxygenhelium and carbonoxygen and carbon
- 19. Multiple ChoiceAttractions between water molecules are calledCovalent bondsIonic bondsPolar bondsHydrogen bonds
- 20. Multiple ChoiceWater is a universal solvent because it...It can be found anywhereIt freezes when it gets coldfloats when frozenDissolves most substances
- 21. Multiple ChoiceWhich end of the water molecule has a slightly positive charge?the oxygen endthe hydrogen endboth ends are slightly positiveneither end is positive
- 22. Multiple ChoiceWhich statement correctly describes the 2 electrodes?The anode is negative and the cathode is positiveThe anode and cathode are both positiveThe anode is positive and the cathode is negativeThe anode and cathode are both negative.
- 23. Multiple ChoiceLetter A is?evaporationtranspirationcondensationaccumulation
- 24. Multiple ChoiceLetter B is?evaporationtranspirationcondensationaccumulation
- 25. Multiple ChoiceLetter C is?precipitationtranspirationcondensationaccumulation
- 26. Multiple ChoiceLetter D is?precipitationtranspirationcondensationrun off
- 27. Multiple ChoiceLetter F is?precipitationaccumulationcondensationrun off
- 28. Multiple ChoiceWhat is the chemical formula for water?2HOH2OHO2H2O2
- 29. Multiple ChoiceWhich letter represents hydrogen?ABCD
- 30. Multiple ChoiceWhich letter represents oxygen?ABCD
- 31. Multiple ChoiceWhy can some insects walk on water?The water sticks to the insect.The insect is too light to break the surface tension.The insect has hydrophobic oils on its legs.Insects can't walk on water.
- 32. Multiple ChoiceWhat are the three states of water found on Earth?solid, liquid & gasoceans, lakes & streamsevaporation, transpirationrain, sleet & hail
- 33. Multiple Choice
We can prevent water pollution by:
Reduce the use of plastic.
Properly dispose of chemicals.
Clean up after your animals.
All of the above
- 34. Multiple Choice
3 things water pollution causes:
Death of animals
Habitat destroyed
Humans sick
Lung damage
- 35. Multiple Choice
Humidity is...
how fast air moves
the amount of water vapor in the air
the amount of heat in the air
evaporation
- 36. Multiple Choice
It is a maximum amount of solute that is soluble in 100 cm³ of solvent at a specific temperature.
This statement refers to
Solute
Solution
Solubility
Solvent
- 37. Multiple Choice
Diagram shows experiment to study the effect if stirring and without stirring salts to its rate of solubility in water. Both beaker contain 100 cm³ of water.
What is the manipulated variable?
Rate of solubility
Temperature
Volume if water
Stirring and not stirring process
- 38. Multiple Choice
Why does salt dissolves faster in hot water?
Hot water hive high kinetic energy to solvent and solute perticles
More collision between solute and solvent particles
Higher temperature gives more surgace area to the solute
- 39. Multiple Choice
What is the best way to purify water?
Add salt
Put inside the refrigerator
Filtration or Boiling
Find a very clean stream of water
- 40. Multiple Choice
What does chlorination do to the water?
kills microorganisms
Cleans the water
Makes the water taste nice
Removes twigs and sediment
- 41. Multiple Choice
Used to separate suspended particles from a liquid
Filtration
Distillation
Crystallisation
Evaporation
- 42. Multiple Choice
methods of water purification are
Boiling, filtration, Chlorination and distillation
Boiling, filtration, evaporation and condensation
Boiling , filtration, condensation and distillation
Boiling, filtration, screening and chlorination
- 43. Multiple Choice
what is added during coagulation process in water treatment plant
alum and slaked lime
florida
chlorine
calcium carbonate
- 44. Multiple Choice
The correct order of water purification in water treatment plant are:
filtration, coagulation, sedimentation, oxidation, chlorination and fluoridation
filtration,oxidation, coagulation, sedimentation, filtration, chlorination and fluoridation
Filtration, coagulation, sedimentation, filtration, chlorination and fluoridation
Filtration,oxidation, coagulation, sedimentation, chlorination and fluoridation
- Answer choicesTagsAnswer choicesTags