Mid term Exam Review -1

Which particle diagram represents solids?

• 
• 
• 
• 

Which is an example of a element?

• Salt solution

• Water

• Sodium

• Carbon dioxide

Which element is a liquid at STP?

• Iron

• Neon

• Hydrogen

• Mercury

Which particle arrangement shows gas phase?

• 
• 
• 
• 

Which type of matter can not be broken down into simpler substances by a chemical change?

• compound

• solution

• element

• mixture

What is occurring at positions C here?

• Solid state

• liquid state

• gas state

• solid-liquid co- exist

What is occurring at positions B & D here?

• Solid state

• kinetic theory

• gas state

• phase changes

Which of the following phase changes requires the removal of energy? This is energy released by the matter.(select all that apply)

• evaporation

• condensation

• freezing (solidification)

• melting

The temperature at which a gas becomes a liquid is called____________.

• evaporation point

• freezing point

• melting point

• condensation point

Which of the following phase changes requires the addition of energy? Energy is absorbed by the matter.

• condensation

• vaporization

• deposition

• freezing