The change of state from a liquid into solid refers to......

• Melting

• Freezing

• Boiling

• Condensation

The change of state from a gas into solid directly refers to...

• Freezing

• Evaporation

• Condensation

• Deposition

The freezing point of iron is the same as its.....

• Condensation point

• Melting point

• Boiling point

• Sublimation point

Which of the following state changes skip the liquid state?

• Sublimation and deposition

• Sublimation and evaporation

• Deposition and freezing

• Deposition and condensation

Sublimation is...

• Change of state from solid into a liquid

• Change of state from gas into a liquid

• Change of state from gas into a solid

• Change of state from solid into a gas

The reverse of condensation is...

• Melting

• Evaporation

• Freezing

• Sublimation

The reverse of Sublimation is...

• Freezing

• Melting

• Deposition

• Condensation

Which of the following changes of state happens slowly and on the ssurface of the liquid?

• Melting

• Freezing

• Evaporation

• Boiling

The smallest unit of an element that maintains the properties of that element refers to:

• Atom

• Element

• Compound

• Mixture

Which of the following is made up of different kinds of atoms chemically combined?

• Atom

• Compound

• Element

• Mixture