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djyliett [7]
4 years ago
9

Hydrogen and oxygen make up water, which is a covalent compound. Which statement accurately describes hydrogen and oxygen? Hydro

gen and oxygen are both metals. Hydrogen and oxygen are both nonmetals. Hydrogen is a metal and oxygen is a nonmetal. Hydrogen is a nonmetal and oxygen is a metal.
Chemistry
2 answers:
alexdok [17]4 years ago
5 0

hydrogen and oxygen are  both nonmetals

Makovka662 [10]4 years ago
5 0

Answer:

Hydrogen and oxygen are both nonmetals.

Explanation:

From general knowledge, we know that hydrogen and oxygen are both non metallic gases at room temperature. But if we did not know this, the question telling us that they bond together covalently should give us a very strong hint that they are non metallic substances because that's how non metals bond with each other.

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lawyer [7]

Answer:

The correct answer is option C. The unknown solution definitely has Hg22+ present.

Explanation:

In the analysis of group 1 metal cation, the unknown solution is treated with sufficient quantity of 6 M HCl solution and if group 1 metal cations are present then white precipitate of Agcl, PbCl2 or Hg2Cl2 is formed. The precipitate of PbCl2 is soluble in hot water but the other two remains insoluble after treating with hot water. Precipitate of AgCl disappears upon treatment of NH3 solution but Hg2Cl2 becomes black in the reaction with NH3. The black Colour appears due to the formation of metallic Hg.

Balanced chemical equation of the reation is -

Hg2Cl2 + 2NH3  ---------> HgNH2Cl (white ppt.) + Hg (black ppt.) + NH4Cl

Therefore, from the given information the conclusion which can be drawn is that the unknown solution definitely has Hg22+ present.

8 0
3 years ago
Read 2 more answers
Can a particle be a single atom? Explain...
pogonyaev

no, it contains 3 basic particles. (protons, electrons, neutrons)

hope this helped

5 0
3 years ago
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Brilliant_brown [7]
50x75=3750 -- metres per day
3750x15=56250 -- metres in 15 days

Divide by 1000 to convert to km
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The solution is included.

3 0
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