Answer:
C
Explanation:
KCl - the flame test for Potassium produces a lilac flame
Condenser Lens - This lens system is located immediately under the stage and focuses the light on the specimen.
2.13x10^24 is the answer.
V1/T1= V2/T2 V =volume T= temp (in kelvin unit)
2.5/(22+273)=V2/(43+273)
V2=2.7L