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Pachacha [2.7K]
3 years ago
9

Aside from Earth, which of the following inner planets once had liquid water on its surface?

Chemistry
2 answers:
Lilit [14]3 years ago
7 0

mars and murcury also

Nastasia [14]3 years ago
4 0

Aside from Earth, which inner planet once had liquid water on its surface? (Mars)

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Aniline is more basic than cyclohexylamine because: (A) electrons on the aniline nitrogen are somewhat delocalized into the arom
Nady [450]

Answer:

The correct answer is A electron on the aniline nitrogen are somehow delocalized to the aromatic ring.

Explanation:

The structure of aniline contain double bonds and lone pair of electron in the nitrogen atom of -NH2 group that is attached to the benzene ring.

  The electron pair present in the nitrogen atom of -NH3 group of aniline undergo delocalization with the aromatic ring of benzene resulting in the formation of resonance hybrid that increases the ability of nitrogen atom of -NH2 group of aniline to easily donate that lone pair of electron.

 ON the other hand the resonance stabilization cannot be possible with the cyclohexylamine ring as it is saturated.

3 0
4 years ago
In a chemical reaction, under a given set of conditions, the value of the rate constant does not change as the reaction progress
aleksandr82 [10.1K]
A. True
The reaction rate depends on the rate constant for the given set of reaction conditions and the concentration
8 0
3 years ago
Suppose that 7.25 x 10^22 atoms of a hypothetical element have a mass of 3.88 g. What would be the molar mass (g/mol) of this el
S_A_V [24]

Answer:

32.23 to 4 significant figures.

Explanation:

The molar mass of the element is the mass of 6.022 * 10^23 atoms (Avogadro's number).

So by proportion it is 6.022 * 10^23 * 3.88 / 7.25 * 10^22

= 32.23 to 4 significant figures.

4 0
4 years ago
A television weights 8.50 pounds. How many grams is this?
kolezko [41]

Answer:

3,855.532 grams

Explanation:

1 pound = 453.592 grams

8.50 = ? grams

--> 8.50 * 453.592 = 3,855.532 grams.

4 0
3 years ago
All changes in phase (solid-liquid-gas) are
tatuchka [14]

Answer:

States of matter

Explanation:

Three states of matter

7 0
3 years ago
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