Question

23. Two states of matter are described as follows.

Answer 1

Answer:

D gas liquid​

Explanation:

The states of matter in 1 and 2 are the gas and liquid phases.

State 1; the molecules are very far apart. They move about quickly at random straight lines.

• This is an attribute of a gas.
• The particles or molecules of gases are very far apart.
• They are held together by very weak attractive forces.
• Gases are compressible
• Examples are carbon(iv) oxide, oxygen gas

State 2:  the molecules are quite closely packed together. They move about at random. They do not have  fixed positions.

• Liquids are held by much stronger attractive forces.
• Their molecules are closer to each other.
• They generally flow
• They are partially compressible.

Solids are the most closely held together by very strong attractive forces. Their molecules have fixed position.

Therefore, State 1 is gas and State 2 is liquid.