Answer:
electronegativity increases
Hey I tried but could not find your answer, but maybe you could try to calculate the average of bpts of the different elements in the compound to find the boiling point. And when you know the bpt, you can find out whether it is a liquid or gas. But after searching a lot, I found it was a solid. Good luck!
Answer:
Dry ice undergoes sublimation, an endothermic change at room temperature.
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.