The variable is what changes during an experiment. Hopefully this helped! :)
Answer:
there is no question to answer :(
Answer:
Melting-Solid-Liquid-Added
Freezing-Liquid-Solid-Removed
Vapourization-Liquid-Gas-Added
Condensation-Gas-Liquid-Removed
Sublimation-Solid-Gas-Added
Deposition-Gas-Solid-Removed
Explanation:
Answer:
iconic bonded unit
polyatomic ions can be covalently bonded
it has cations and anions