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- 1. Multiple Choice
What word describes when water is attracted to other substances?cohesionadhesioncapillary actionsurface tension - 2. Multiple ChoiceWhat two elements make up water?Helium and oxygenHydrogen and oxygenhelium and carbonoxygen and carbon
- 3. Multiple Choice
When water and other liquids stick together to form drops or thin films called ________________.
adhesion
capillary action
cohesion
surface tension
- 4. Multiple Choicemolecule in which opposite ends have opposite electric chargescohesionpolar moleculehydrogen bondsolution
- 5. Multiple ChoiceWhy does ice float?As water freezes, it expands and its density decreases.As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.As water freezes, air becomes trapped between the hydrogen bonds of water molecules.As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
- 6. Multiple ChoiceThe reason the water balloon did NOT pop while held over a flame is water's _________.Less dense than air.Hydrogen bonds between water molecules.polarity.high specific heat capacity.
- 7. Multiple ChoiceWater is a universal solvent because it...It can be found anywhereIt freezes when it gets coldfloats when frozenDissolves most substances
- 8. Multiple ChoiceThe fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid formless polarmore polarless densemore dense
- 9. Multiple ChoiceWater striders can walk across the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?The insects are light enough so they do not break the hydrogen bonds holding the water molecules togetherThe insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
- 10. Multiple ChoiceA general definition of cohesion is the attraction of:particles of the same substanceparticles of a different substanceparticles of both the same and different substancesparticles of neither the same or different substances
- 11. Multiple ChoiceWhich term refers to water having partial positive and a partial negative charge?cohesionsurface tensionpolarityadhesion
- 12. Multiple ChoiceA high specific heat means...It heats up quickly with energy addedIt requires more energy to change temperature
- 13. Multiple Choice
What do you call any substance that dissolves another substance?
Solvent
Height
Atoms
Oxygen
- 14. Multiple Choice
Capillary Action
The property of water that allows ice to float on the surface of liquid water
The property of water that allows it to dissolve polar substances
When water molecules stick to other surfaces
The property of water that allows water to move up a thin tube (or the stem of a plant) by itself
- 15. Multiple Choice
What property of water allows water to flow against gravity?
Polarity
Cohesion
Capillary Action
Adhesion
- 16. Multiple ChoiceWhat is the gaseous form of water called?SteamWater vaporVaporWater mist
- 17. Multiple Choice
The temperature at which a substance changes from a liquid to a solid (for water, this is 0 degrees Celsius, 32 degrees Fahrenheit)
freezing point
boiling point
melting point
evaporation
- 18. Multiple Choice
The temperature at which a substance changes from liquid to gas (for water this is 100 degrees Celsius, 212 degrees Fahrenheit)
boiling point
melting point
evaporation
condensation
- 19. Multiple ChoiceWhat is the boiling point of water0 C100 F50 C100 C
- 20. Multiple ChoiceWhat is water's freezing point?0 F32 C50 C0 C
- Answer choicesTagsAnswer choicesTags