Review 1.A.3 Question Preview (ID: 44841)


Review Objective 1.A.3.

During a phase change, temperature _________.
a) increases
b) decreases
c) stays the same
d) all of these

When you heat a liquid, the particles ________.
a) move faster
b) move slower
c) shrink
d) grow

When you cool a solid, the particles _______.
a) move faster
b) move slower
c) grow
d) shrink

When adding heat to a substance as it melts, the energy is used to _____
a) speed up particles
b) slow down particles
c) overcome intermolecular forces
d) increase intermolecular forces

The force being exerted by a gas over a liquid best describes which property of matter?
a) surface tension
b) boiling point
c) vapor pressure
d) melting point

Certain insects are able to walk on water because of this property of water
a) high vapor pressure
b) high surface tension
c) low vapor pressure
d) low surface tension

Adding another substance to a pure liquid (like adding dish soap to water) will do this to the surface tension
a) make it stronger
b) make it weaker
c) have no effect
d)

Increasing the temperature of a liquid will have this effect on its vapor pressure
a) increase
b) decrease
c) no effect
d)

Which of the following best explains why road crews use salt on icy and snowy roads in the winter?
a) The salt heats up the ice and makes it melt
b) The salt is ground into the ice and causes it to crack
c) The salt lowers the freezing point of water and makes it easier to melt
d) The salt combines with the ice and creates a new substance

As you go from top to bottom among non-metals on the periodic table reactivity does what?
a) increase
b) decrease
c) stays the same
d)

What can you infer about intermolecular forces of substances that have a higher melting points?
a) increase
b) decrease
c) stays the same
d)

As you go from top to bottom among metals on the periodic table reactivity does what?
a) they are stronger
b) they are weaker
c) they are the same
d)

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