The number is 6
4x-9=15
4x=24
X=6
Answer:
349
Step-by-step explanation:
3141 divided by 9=349
0.66666666666
I got it from the internet?
Answer: 82.3 g
Step-by-step explanation:Moles Cu = 300 g x 1 mol Cu/63.55 g = 4.72 moles Cu
Moles Zn = 4/15(4.72) = 1.26 moles
mass Zn = 1.26 moles x 65.38 g/mol =