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AleksAgata [21]
3 years ago
10

What percent by mass of aluminum is present in aluminum sulfate ?

Chemistry
1 answer:
xxMikexx [17]3 years ago
4 0
The percent of aluminium of a aluminium sulfate, AI2(SO4)3 is 15.8%.
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When magnesium loses it's valence electrons, it has the atomic structure of what element?
Arte-miy333 [17]

As far as I can tell the best answer for this would be (A) Neon. However, I would argue that this is at the very least a misleading question. Atoms are less identified by their electrons than their protons (which is represented always by its atomic number).  Although atoms can gain or lose electrons, the protons would never change (and remain the same element). Personally, I would have written the question as, "When Magnesium loses its valence electrons, its new number of electrons would most closely resemble _____"

4 0
3 years ago
Select the keyword or phrase that will best complete each sentence. A Claisen reaction is a nucleophilic ____________ in which a
Juliette [100K]

Answer:

Substitution.

Explanation:

Claisen reaction was first published in 1887 by a prominent German chemist known as Rainer Ludwig Claisen.

A Claisen reaction is a nucleophilic substitution in which an enolate is the nucleophile. It's typically a reaction of two molecules of an ester to form a β-keto ester, in the presence of an alkoxide base. Thus, a Claisen reaction is simply a characteristic condensation reaction of esters through a nucleophilic carbonyl substitution with an enolate such as a ketone enolate or an ester enolate.

Furthermore, a Claisen reaction results in the formation of a carbon-carbon bond in the presence of a strong base to yield a β-keto ester.

5 0
3 years ago
Write the name for each of the following chemical formulas. <br> d. P3N5 (for doping semiconductors)
rewona [7]

Answer:

Triphorphorus Pentanitride

Explanation:

since there are three phosphorus use the prefix tri-, since there are five nitrogen use the prefix penta. tri=3, penta=5. then add a suffix -ide to the end of nitrogen. that will give you triphosphorus pentanitride.

3 0
2 years ago
Why are the first bubbles of oxygen prduced not collected?​
musickatia [10]

Answer:

because I don't know the answers sorry maam

4 0
3 years ago
Which of the following does not describe a characteristic of carbon?
anastassius [24]
The characteristic that is not descriptive of C, would be D. It forms bonds with only itself. It forms bonds with almost all other nonmetals, present, like H,O,N, etc.
7 0
3 years ago
Read 2 more answers
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