I think it is planet a orbits faster than planet b so sorry if I get it wrong but I’m pretty sure that’s what it is good luck!
Answer:
I believe the ootion is C
Explanation:
Answer:
The answer is "
"
Explanation:

In equation (a) multiply by 2 then subtract from the equation (b):

put the value of x in equation (a):

Answer:
M=0.09 mol/L
Explanation:
M=mol/volume
M=0.06 mol/0.656 L(convert 656 ml to L by ÷ by 1000)
M=0.09 mol/L