Question

(will mark you as a brain list if u answer all these correctly!)

(1) Choose the most suitable answer.
is These substances can change
from solid to vapour from directly
without melting

(a)Iocline
b) Dry Ice
c) Ammonium Chloride.

11) The particles in a solid can
a Not move
b) Vibrate on their fixed positions
o Move constantly and randomly​

Answer 1

Answer:

1.) (b) Dry ice

2.) (b) Vibrate on their fixed position

Answer 2

Answer:

1. (b) Dry
2. b) Vibrate on their fixed positions.