Question

Докажите, что выданный вам порошкообразный купрум (II) оксид содержит примеси порошкообразного железа.

Answer 1

Надо просто провести магнитом над оксидои. если ничего е произойдет - железа нет . ессли покроется стружкой - условие верно

Answer 2

Analysis of the Claim

The claim states that the given powdered copper (II) oxide contains impurities of powdered iron. To verify this claim, we will examine the available search results.

Search Results Analysis

Unfortunately, the search results provided do not contain any relevant information or specific details about the claim. The snippets do not provide any evidence or support for the claim that the powdered copper (II) oxide contains impurities of powdered iron.

Conclusion

Based on the available search results, there is no evidence to support the claim that the given powdered copper (II) oxide contains impurities of powdered iron. It is important to note that without further information or specific evidence, it is difficult to make a definitive conclusion. If you have any additional information or specific details about the sample, it would be helpful in further investigating the claim.