Question

answer all the qiestion u can solve

Answer 1

3) CO2 is called Dry Ice.It does not melt into any wet liquid. Since it's never wet, we call it as dry ice.
4)(1) the temperature at which a given solid will melt
   (2)movement of molecules from a region of high concentration to one of lower concentration

Answer 2

1.When water vapour in the air comes into contact with something cool, such as the outside of a cold glass of lemonade, its molecules slow down and get closer together. When that happens, the gaseous water vapor turns back into liquid water droplets. That's condensation!

2.Carbon dioxide

4a.the temperature at which a given solid will melt.

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