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The Importance of Water

How is a covalent bond formed in water?

Hydrogens each share an electron

Hydrogens each share a proton

Hydrogens don't share an electron or proton

None of the above

Adhesion is the attraction between ______________.

2 like substances

1 like substance

2 different substances

1 different substance

Capillary action involves _______________ and ____________________.

Cohesion; nothing else

Cohesion; surface tension

Cohesion; bonding

Cohesion; adhesion

What does hydrophilic mean? What does hydrophobic mean?

"water-loving" ; "water-fearing"

"water-fearing" ; "water-loving

Explain what a hydrogen bond is?

Which area in a water molecule has a slight positive charge, and which area in the water molecule has a slight negative charge?

Oxygen has a slight positive charge; hydrogen has a slight positive charge; hydrogen has a slight positive charge; hydrogen has a slight positive charge

Oxygen has a slight negative charge; hydrogen has a slight positive charge

Oxygen has a slight negative charge; hydrogen has a slight negative charge

Oxygen has a neutral charge; hydrogen has a slight positive charge

What property results from a hydrogen bond, and why is it important?

Heat Capacity

Hydrogen bonds

Surface tension

None of the above

What is cohesion?

It is the attraction between 2 like things

It is the attraction between 1 like thing

When two molecules repel each other

When three molecules repel each other

Water has the highest _________of any __________ liquid.

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