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3 years ago

What are the common uses of acetone and formalin?

2 answers:

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Acetone It is good for plastics and some synthetic fibers. It is used for cleaning tools. it is used for thinning polyester resin.Formalin is used as an antiseptic, and preservative. It is also used to treat the fungal diseases of fish. Formaldehyde solutions can be used as disinfectants and germicides, as they quickly kill bacteria and other potentially harmful microorganisms

lorasvet [3.4K]3 years ago

3 0

Answer:

cetone is mainly used in the manufacturing of many different chemicals and also used as solvent in items such as remover for nail polish, paint, lacquers and finishes, cleaners, etc.

Formaline is used as antibacterial, preservative and disinfectant. It's the pungent gas formaldehyde's 37% aqueous solution and also has the formula HCHO.

Explanation:

Acetone is widely used to wash nail however formalin, often identified as formaldehyde, is often used in embalming.

Acetone is mainly used in the manufacturing of many different chemicals and also used as solvent in items such as remover for nail polish, paint, lacquers and finishes, cleaners, etc.

Formaline is used as antibacterial, preservative and disinfectant. It's the pungent gas formaldehyde's 37% aqueous solution and also has the formula HCHO.

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Select the reason why two molecules of benzaldehyde cannot react via the aldol condensation.

Lesechka [4]

Benzaldehyde or C6H5CHO would not undergo the aldol condensation because it does not contain an alpha-hydrogen in its structure. Aldol condensation is a type of reaction that happens between an enolate and an aldehyde or ketone leading to a alkene that has a planar structure. The lack of an alpha-hydrogen would not allow for it to undergo such process since it cannot enolize. Benzaldehyde undergoes a nucleophilic reaction known as Claisen-Schmidt condensation. It has somehow same mechanism of the aldol reaction however, the nucleophilic attack on the carbonyl happens even without the alpha-hydrogen but with an enolate that is from a ketone.

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3 years ago

Which statements about fresh-water sources are true.? (Multiple Choice) (please help asap thanks!:)

Kay [80]

Answer:

The correct answers are:
"Only about 3 percent of Earth's water is fresh water."

"About 75% percent of the fresh water on Earth is frozen in ice sheets."

"The largest source of usable fresh water is groundwater."

Explanation:

3 percent of Earth's water is most certainly fresh water. Confirmed with a few fact checks.

The largest source of usable fresh water on Earth is groundwater. It's more difficult to access but it's there and much more usable than water say frozen in ice on the sea.

The most correct option left would be 75% of Earth's freshwater being in ice sheets even though it's about 70%.

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2 years ago

Which of the following is true of atoms with very low electronegativity

Katarina [22]

Answer:

well there is no chose here is my best option i would chose

1 Electronegativity is the ability of an atom to attract electrons.

Explanation:

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2 years ago

Which of the following is not an example of a chemical reaction? Rust Heat from Fire Photosynthesis Melting Ice

VARVARA [1.3K]

Melting ice. Hopefully this helps!

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3 years ago

Read 2 more answers

bio 102 Wildfire is a problem throughout the world because of high levels of _______ in the atmosphere Group of answer choices m

Bas_tet [7]

<h2>Carbon-dioxide</h2>

Explanation:

Wildfires are blazes that are impossible to control which burn land by huge amounts and burns over everything that comes in their paths like plant animals and other living creatures.

In the mentioned gases, Carbon dioxide is the main reason responsible for wildfire.

Carbon dioxide is known to be the main driver behind the warming of the earth 's atmosphere which is mainly induced by humans, and its increase in the concentration in the atmosphere is regularly increasing day-by-day.

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3 years ago