You receive two samples of a substance. After testing, it

shows that one sample contains 88% oxygen by mass an 12%
hydrogen. The second sample contains 94% oxygen and 6%
hydrogen. Is it possible that the two samples are the same?
Explain. thanks, I appreciate the help !

To determine if the two samples are the same, we need to compare the proportions of the elements in each sample. In this case, we are given the percentages of oxygen and hydrogen in each sample.

Let's compare the percentages of oxygen first. The first sample contains 88% oxygen, while the second sample contains 94% oxygen. Since the percentages of oxygen are different, we can conclude that the two samples are not the same.

However, let's go one step further to confirm our conclusion. We can calculate the mass of each element in each sample to see if the ratios are the same.

For the first sample, let's assume we have 100 grams of the substance. From the given information, we know that it contains 88 grams of oxygen (88% of 100 grams) and 12 grams of hydrogen.

For the second sample, assuming we have 100 grams again, it contains 94 grams of oxygen (94% of 100 grams) and 6 grams of hydrogen.

Comparing the ratios of oxygen to hydrogen, the first sample has a ratio of 88:12, which simplifies to 7:1. The second sample has a ratio of 94:6, which simplifies to 47:3.

Since the ratios of oxygen to hydrogen in each sample are different (7:1 and 47:3), we can confidently say that the two samples are not the same.

Therefore, it is not possible that the two samples are the same.