Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

Here you need to know how many litters are a measuring cup.

1 cup = 250ml = 0.25 liters.

Now, do the cross multiplication:

1 cup 0.25 liters.

1.2 cups --X= 1.2 (cups * 0.25 liters)/ 1 cup = 0.3 liters

So, 1.2 cups of oil represent 0.3 liters or 300ml.

pure substance: iron,copper

impure substance: water,charcoal