A17g sample of h2o2 was decomposed to yield 1g of h2 and 16g of o2 an unknown sample containing only h and o was decomposed to yeild 2g of h2 and 16 g of o2. the formula for the unknown sample is:

Explanation:

Our sample yielded 1g of and 16g of , but our unknown sample yielded 2 times as much  for the same amount of .

What does this mean? that the H:O proportion for the unknown sample is twice the H:O proportion for the sample.

What is the  H:O proportion for the sample? As we can see from its formula, it's 1:1, therefore the proportion for the unknown formula must be 2:1.

That means, two H atoms for every O atom. We could write that as: and you should recognize that formula, for it is one of the most common compounds on earth, Water.

the answer is 1 i believe