URGENT!!! Chemistry exam tomorrow and i can't figure out this question. Calculate the concentration of each of the following diluted solutions. a) 10 mL of water is added to 5mL of 1.2M( concentration) HCL. PLEASE HELP!!!!

Question

somy · Answer

write balanced reaction

somy · Answer

oh wait no u don't need it

somy · Answer

C1V1= C2V2
C1= 1.2 M
V1= 5mL/1000= 0.005L 
C2= X
V2= 5+10= 15mL/1000= 0.015L

somy · Answer

put the values into the formula and get your new concentration

anonymous · Answer

Oh, it makes sense now. I thought i had to use that rule but i wasn't sure how to put the values in. Thanks so much!!!

somy · Answer

you are welcome :) there is a longer kinda way 
but this one is like shortcut :D

anonymous · Answer

ok, i think i rather the shortcut :)

somy · Answer

okay :)

koikkara · Answer

$Hope~She~helps~!!$ Don't Forget, $Click~on~the~$  $\color{purple}{"Close~Button"}$   Too !

$\color{darkgreen}{~''Nice~To~Meet~You~!!"}$ @adriana_98

anonymous · Answer

what do i have to do sorry?

koikkara · Answer

click on $\color{purple}{`Close"}$  button too...!  $\color{blue}{~''Have~A~Nice~Day~!!"}$