Answer:
A pure solid is heated and turns into a pure liquid.
Explanation:
No colour change recorded, only change of state, hence this is a physical change - physical changes I.e. change of state and temperature are not chemical reactions.
C. Lowering the temperature
At the lower temperature, particles have less kinetic energy, so they move slower.
What's your question? Am I missing something?
The molar mass for PCL3 is 137.33 g/mol
I'd say he ways about 35 kilograms, but I'm probably wrong, xD