What eventually happens to a gas if it's pressure is increased

If two identical atoms are bonded,what kind of molecule is formed

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes or no?