Weigh 'n' mix

[English] (Spanish at the bottom) [How to play] [Please read this part] Each level gives you a potion request you have to fulfill.  To do so, the combined weight of all ingredients you throw into the cauldron, has to be equal to the exact weight of the potion. But you don't know the exact weight of an ingredient, so you have to use the weight scale to deduct it. (Clue: it's always a multiple of…