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- 1. Multiple Choice
What kind of molecule is water?
Polar covalent
Ionic
Nonpolar covalent
metallic
- 2. Multiple Choice
Which part of a water molecule has a Positive Charge?
The Hydrogen
The Oxygen
The Top
The Bottom
- 3. Multiple Choice
Which part of a water molecule has a Negative Charge?
The Hydrogen
The Oxygen
The Left
The Right
- 4. Multiple Choice
Which of the following can water NOT dissolve?
Salt
Sugar
Oil
Baking Soda
- 5. Multiple Choice
Which of the following can water NOT dissolve?
Ionic Compounds
Polar Compounds
Nonpolar Compounds
- 6. Multiple Choice
What is the correct chemical formula for water?
H2O
HO2
H2O2
2H1O
- 7. Multiple Choice
Which of the following is an example of COHESION?
water sticking to water
water sticking to glass
oil sticking to plastic
hydrogen sticking to oxygen
- 8. Multiple Choice
Which of the following is the CORRECT list of water's properties?
Read Carefully!
adhesion, cohesion, high specific heat, universal solvent
adhesion, cohesion, low specific heat, universal solvent
adhesion, no cohesion, low specific heat, universal solute
no adhesion, cohesion, high specific heat, universal solute
- 9. Multiple Choice
Water is polar. What does that mean?
it is a molecule with opposite charges on opposite ends
it is a molecule with no charge
it is a molecule with identical charges on opposite ends
it is a molecule with too many protons
- 10. Multiple Choice
Water sticks well to many materials. What term relates to this property of water?
cohesion
adhesion
density
surface tension
- 11. Multiple Choice
What is the term for water's ability to defy gravity and climb up a tube?
Capillary Action
Specific Heat
Universal Solvent
Magic
- 12. Multiple Choice
Why does ice float?
water expands when it freezes, making ice less dense than water
water compacts when it freezes, making ice more dense than water
hydrogen bonds in water push the ice to the surface
ice is afraid of water, and avoids it
- 13. Multiple Choice
What are the bonds called between a slightly positive hydrogen in a polar molecule and a negatively charged atom?
Hydrogen Bonds
Water Bonds
Covalent Bonds
Bail Bonds
- 14. Multiple Choice
Which of the following is the correct molecular structure for water, H2O?
- 15. Multiple Choice
A water strider can skate along the top of a pond because:
covalent bonds result in water cohesion (surface tension)
hydrogen bonds result in water cohesion (surface tension)
water striders have adapted to take advantage of water cohesion
water striders are afraid of water and avoid it
- 16. Multiple ChoiceWater is a universal solvent because it...It can be found anywhereIt freezes when it gets coldfloats when frozenDissolves most substances
- 17. Multiple ChoiceLarge bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?Water is an acid.Water is a versatile solvent.Water has a high heat capacity.Water acts as a buffer.
- 18. Multiple ChoiceWhy does ice stay at the top of oceans instead of sinking to the bottom?Ice is colder than liquid water.Ice is less dense than liquid water.Ice is more dense than liquid water.Ice is warmer than liquid water.
- 19. Multiple ChoiceA florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?Specific heatSurface tensionCohesion and adhesion of water moleculesFormation of covalent bonds between hydrogen and oxygen molecules
- 20. Multiple ChoiceWhich of the following characteristics of water is not a result of hydrogen bonding?adhesive strengthcapillaritycohesive strengthAll of the above are a result of hydrogen bonding.
- 21. Multiple ChoiceWhy does water move from the roots to the leaves of plants?Water is pushed by solutesCapillary action pulls the water molecules like a chainWater is pulled by gravityWater’s cohesion causes it to “pull” towards the leaves
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