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olya-2409 [2.1K]
2 years ago
7

Based on the six given solvents, which of the following answers lists ALL of the solvents that are NOT suitable for liquid-liqui

d extraction of an aqueous layer?
1. Ethyl Acetate
2. Acetone
3. Methanol
4. Dimethyl Sulfoxide
5. Toluene
6. n-Octanol
A. Ethyl Acetate, Toluene, and n-Octanol
B. Dimethyl sulfoxide, Acetone, and Methanol
C. Toluene and n-Octanol
D. Ethyl Acetate and Dimethyl Sulfoxide
E. Acetone and n-Octanol
A. Ethyl Acetate, Toluene, and n-Octanol
B. Dimethyl sulfoxide, Acetone, and Methanol
C. Toluene and n-Octanol
D. Ethyl Acetate and Dimethyl Sulfoxide
E. Acetone and n-Octanol
Chemistry
1 answer:
Zina [86]2 years ago
6 0

Answer:

I don't know the answer sorry

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Zn + O2= ZnO<br><br> How many moles of zinc are needed to make 500. g of zinc oxide?​
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Answer:

5.15 moles

Explanation:

2zn + o2 = 2zno

5.15 2.57 5.15 moles

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3 years ago
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Which statement describes the distribution of charge in an atom?
miv72 [106K]

The correct answer is:

A positively charged nucleus is surrounded by one or more negatively charged electrons

The explanation:

when:

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so, , there are positively charged protons and zero-charged neutrons in the nucleus of an atom. Therefore, the nucleus is positively charged, Surrounding the nucleus, the electrons have negative charge. 

Thus, the correct answer is (3): A positively charged nucleus is surrounded by one or more negatively charged electrons is correct.

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