Properties Of Water Question Preview (ID: 32909)


Polarity, Capillarity, Adhesion, Cohesion, Surface Tension, Surfactant, Universal Solvent, States Of Matter, Mixtures, And Solutions. TEACHERS: click here for quick copy question ID numbers.

What is a molecule?
a) A substance made up of two ore more atoms
b) A substance made up of two or more different types of atoms.
c) The curved upper surface of a liquid in a graduated cylinder.
d) A substance that weakens Hydrogen bonds at the surface of a liquid.

What is a compound?
a) A substance made up of two ore more atoms
b) A substance made up of two or more different types of atoms.
c) The curved upper surface of a liquid in a graduated cylinder.
d) A substance that weakens Hydrogen bonds at the surface of a liquid.

Which two states of matter have a definite volume?
a) solid and liquid
b) liquid and gas
c) solid and gas
d)

In which two states of matter can the molecules move freely?
a) solid and liquid
b) liquid and gas
c) solid and gas
d)

Water can dissolve many substances! This is why water is known as
a) universal solvent
b) surfactant
c) meniscus
d) surface tension

The pH of water is
a) 7
b) 9
c) 5
d) 4

Which state of matter has the molecules held in a rigid structure (molecules cannot move freely)?
a) solid
b) liquid
c) gas
d)

Water stuck to a glass window is an example of
a) Cohesion
b) Adhesion
c) Capillary action
d) Surface tension

The Oxygen atom in a water molecule is slightly
a) positive
b) negative
c)
d)

The 2 Hydrogens in a water molecule are slightly
a) positive
b) negative
c)
d)

Water moving upward against the force of gravity inside the root of a plant is known as
a) Capillary action
b) Surface tension
c) Cohesion
d) Adhesion

What does a surfactant do?
a) It lowers the surface tension by weakening Hydrogen bonds
b) It allows for water molecules to stick together
c) It helps water climb upwards
d) It helps water stick to other substances

Why is water called a polar molecule?
a) It has unequal sharing of electrons giving water the ability to act like a magnet.
b) It is a neutral molecule; water has not charge.
c)
d)

Define cohesion
a) Water molecules stick to other substances
b) Water molecules stick to other water molecules
c)
d)

A water molecule is composed of...
a) 1 Oxygen and 1 Hydrogen
b) 2 Oxygens and 1 Hydrogen
c) 1 Oxygen and 2 Hydrogens
d) 2 Oxygens and 1 Hydrogen

Surface tension is...
a) cohesion at the surface of water
b) when water sticks to other substances
c) when water climbs upwards against gravity
d) when water separates from other water molecules

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