Answer:
The jar of chermical contains 66g of Zinc.
Step-by-step explanation:
The ratio of Zinc to Copper is 3 : 13
A jar of the chemical contains 286g of copper.
Let the mass of the Zinc be xg.
[tex]\frac{13}{3}[/tex] = [tex]\frac{286}{x}[/tex]
x = [tex]\frac{3 × 286}{13}[/tex] = 66g
So the jar of chemical contains 66g of Zinc.
