Chemistry Quiz 2

ECZ 2017 Chemistry Paper 2

what physical state is the substance in at A

• liquid

• solid

• gas

• solid and liquid

ECZ 2017 Chemistry Paper 2

what physical state is the substance in at C

• liquid

• gas

• solid

• liquid and gas

ECZ 2017 Chemistry Paper 2

Describe the movement of particles at A

• move pass each other and rotate

• vibrate about a fixed point

• move very fast and are far apart

• just rotate

ECZ 2017 Chemistry Paper 2

Describe the movement of particles in C

• move very fast and are far apart

• just rotate

• move pass each other and rotate

• vibrate about a fixed point

Q. 

ECZ 2017 Chemistry Paper 2

What is the melting point of the substance?

• 30⁰C

• 120⁰C

• 60⁰C

• 100⁰C

Q. 

ECZ 2017 Chemistry Paper 2

what is the boiling point of the substance

• 20⁰C

• 60⁰C

• 100⁰C

• 120⁰C

what happens to the temperature while the substance is changing its physical state

• it increase

• it is constant

• it reduces

• it remains high

what state(s) of matter exist at part D

• gas only

• liquid and gas

• solid only

• solid and gas

what state(s) of matter exist at B

• liquid

• solid and liquid

• gas

• gas and liquid

at which part are particles closely packed together

• A

• B

• C

• D