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WorksheetsStructure of Water and Hydrogen Bonding
Total questions: 15
Worksheet time: 15mins
molecule in which opposite ends have opposite electric charges
cohesion
polar molecule
hydrogen bond
solution
Water is polar because...
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
The molecule has two poles, at which the it is colder than other regions of the molecule.
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
The water molecule is neutral.
Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent?
purity
polarity
high heat capacity
expansion upon freezing
Attractions between water molecules are called
Covalent bonds
Ionic bonds
Polar bonds
Hydrogen bonds
The hydrogen atoms in a water molecule are ________________ charged.
not
negatively
neutrally
positively
Which term refers to water having a slightly positive and a slighty negative charge on its ends?
cohesion
surface tension
polar
adhesion
Surface tension is caused by ...
strong cohesion between water molecules
strong adhesion between the water molecules
condensation
water cycle
Water drops being attracted to each other is an example of ____________.
capillary action
adhesion
specific heat index
cohesion
What is the molecular geometry of a water molecule?
Linear
Bent
Trigonal planar
Tetrahedral
Which type of bond is primarily responsible for the high boiling point of water?
Ionic bond
Covalent bond
Hydrogen bond
Van der Waals forces
How many hydrogen bonds can a single water molecule form with surrounding water molecules?
1
2
3
4
What is the angle between the hydrogen-oxygen-hydrogen atoms in a water molecule?
104.5 degrees
90 degrees
120 degrees
180 degrees
Which property of water allows it to have a high surface tension?
Cohesion
Adhesion
Density
Viscosity
In the context of hydrogen bonding, what is the role of the oxygen atom in a water molecule?
Hydrogen donor
Hydrogen acceptor
Electron donor
Electron acceptor
Why does ice float on water?
Ice is denser than water
Ice is less dense than water
Ice has a higher surface tension
Ice has a lower surface tension
