The electric Configuration of chlorine can be written as 2,8,7 electrons are distributed in the shells K,L,M respectively.
A I think that a bar graph would best represent this information.
Carbon is found in all four.
The temperature change is calculated using the combined gas law
that is P1V1/T1 =P2V2/T2
P1= 100KPa
P2=90kpa
v1= 2.50 L
v2= 3.75 L
T1= 303 K
T2=?
T2 is therefore = P2V2T1/P1V1
=( 90 x 3.75 x303)/ (100 x2.50) = 409.05 K
c, steel , milk, chlorine gas because all the other choices has a metal.