4. Using the pressure from the previous question (pressure= 6.392 Hg) and seeing that you will be using 0.1504 g of CaCO3 in a room that is 25 degrees Celsius. what is the theoretical yield off carbon dioxide gas? Give answer in mL.

they both have a y in them

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

im pretty sure its b