(Originais Teachy 2024) - Question Medium of Chemistry

When studying the formation of chemical compounds, a chemist observed that element X can combine with element Y to form two different compounds, A and B. In compound A, 5 grams of X combine with 10 grams of Y, while in compound B, 5 grams of X combine with 20 grams of Y. Based on Dalton's Law of Multiple Proportions, the masses of elements in different compounds are expected to be related by simple ratios of integers. (1) Calculate the ratio between the masses of Y that combine with the same mass of X in compounds A and B and indicate if this ratio respects Dalton's Law. (2) If a third compound C were discovered, containing 5 grams of X and 15 grams of Y, would this compound be in accordance with Dalton's Law? Justify your answer based on the calculated proportions.