If carbon monoxide (CO) leaked into your home, would you predict that if would float to the top of the room or stay near the floor? Answer the same question for carbon dioxide (CO2),
would it float or sink?

Float (CO) Sink (CO2)

Explanation:

That is why CO Detectors are in your house at the ceeling. carbon dioxide sinks because it is heavier than the oxygen in the house.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml