The temperature of 125 L of chlorine gas is set at 30°C. What is the final temperature if the gas volume decreases to 75 L?

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

give me abc and i will get it for u.