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ANTONII [103]
3 years ago
7

Look at the periodic table and the characteristics of the elements given above. Select the group of elements that include only t

hose that are either colorless, odorless gases or shiny, silvery, soft metals.
Chemistry
2 answers:
ella [17]3 years ago
7 0
A.Radon,neon,calcium
Lilit [14]3 years ago
3 0
Radon neon and calcium
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The equilibrium: 2 NO2(g) \Longleftrightarrow⇔ N2O4(g) has Kc = 4.7 at 100ºC. What is true about the rates of the forwar
Sergeeva-Olga [200]

Answer:

  • Initial: forward rate > reverse rate
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Explanation:

2NO₂(g) → N₂O₄(g)   Kc=4.7

The definition of <em>equilibrium</em> is when the forward rate and the reverse rate are <em>equal</em>.

Because in the initial state there's only NO₂, there's no possibility for the reverse reaction (from N₂O₄ to NO₂). Thus the forward rate will be larger than the reverse rate.

7 0
3 years ago
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Answer:

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6 0
3 years ago
Ibuprofen, a well-known non-steroidal anti-inflammatory drug, has chirality. Only the S enantiomer has anti-inflammatory activit
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Answer:

See image attached

Explanation:

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Only the S- stereoisomer is active as a drug. The R-stereoisomer is gradually converted into the S-stereoisomer in the body. The drug may also be given as a racemic mixture.

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C - rising and cooling, causing water vapor to condense
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How can a mixture of ammonia and hydrogen be seperated?
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3 years ago
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