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Lemur [1.5K]
3 years ago
8

Which of the following elements has the same number of valence electrons as aluminum?

Chemistry
2 answers:
Andrei [34K]3 years ago
7 0
Boron is the correct answer
Zinaida [17]3 years ago
6 0

Answer:

boron

Explanation:

Boron and aluminum lie in same group in modern periodic table and both have three valence electrons

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A neutral solution has a(n) _______ amount of hydroxide ions compared to hydrogen ions.
erastovalidia [21]
The answer is 'equal'. Hydroxide ions are OH- and Hydrogen ions are H+. Have you noticed they're opposite charges? Positive + negative = neutral. That's all there is to it :)
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4 years ago
Acetic acid (ch3cooh) and trifluoroacetic acid (cf3cooh) are shown by these particulate models. the ka for trifluoroacetic acid
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Answer:

See explanation

Explanation:

If we look at the models, we will see that the three fluorine atoms in CF3COOH are attached to the carbon that is next to the -COOH group.

As a result of the electron withdrawing effect of the three fluorine atoms, CF3COOH  is much more acidic (104 times more acidic) than CH3COOH. This is reflected in the value of the Ka for each acid.

This electron withdrawing effect of the three fluorine atoms also stabilizes CF3COO- much more than CH3COO-.

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Eddi Din [679]

Answer:

Where the greatest electron density is. And isn’t. Look at water. H-O-H.

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