Question

Compound A, B only contain X, Y elements. Compound A (4.0g) contains 1.5g X; Compound B (16.5g) contains 9.0g X. If Compound A can be written as XY2, what would Compound B be written as?

Answer 1

The mass ratios of carbon to hydrogen in compound X and compound Y support the law of multiple proportions, indicating that they are different compounds.

Step-by-step explanation:

In compound X, the mass ratio of carbon to hydrogen is 14.13 g C : 2.96 g H. In compound Y, the mass ratio of carbon to hydrogen is 19.91 g C : 3.34 g H. These ratios support the law of multiple proportions, which states that when two elements combine to form different compounds, the ratio of their masses will be in simple, whole-number ratios. Therefore, compound X and compound Y are different compounds.