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1 year ago

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Chemistry

2 answers:

german1 year ago

6 0

1. Lewis acid- electron pair acceptor.

2. Lewis base- electron-pair donor.

3. Bronsted acid- proton donar

4. Bronsted base- proton acceptor

5. A compound that acts as both a bronsted-lowry acid and base together is called amphoteric.

Machine parts, bodily processes or functions, healing mechanisms. A combination of mental processes, a psychological mechanism by which a result is achieved. A fundamental physical or chemical process involved in or responsible for an action-reaction or another natural phenomenon.

The difference between process and mechanism as nouns is that process is a sequence of events to achieve a result, and mechanism is in a machine or mechanism, especially as opposed to a product. Inside the machine or machine park. A mechanical means of transducing or controlling motion or transmitting or controlling force.

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zzz [600]1 year ago

3 0

This is the reaction when the 2-pentanone is converted into pentanol.

The presence of aldehyde converts the ketone to alcohol.

What mechanism is used?

The mechanism used is of aldehyde converting ketones to alcohol. The steps are as:

Conversion of ketone by aldehyde
making of carbonyl ion
Adding carbon to the ion
Addition of hydride to the carbonyl to the aldehyde.
On adding acid, oxygen is protonated
This gives us neutral primary alcohol.

The types of acids and bases are shown as:

Lewis acid- electron pair acceptor.
Lewis base- electron-pair donor.
Bronsted acid- proton donar
Bronsted base- proton acceptor

What are Lewis acids ?

Lewis acids are the compounds or ionic species that can accept an electron pair from any donor compound.

What are Lewis bases ?

Lewis base is the donor compound or ionic species.

What are Bronsted acids or bases?

Bronsted - Lowry acids are substance which donate H+ ions and these later forms a conjugate base while a Bronsted - Lowry bases are those substances which accepts H+ ions and they in return forms a conjugate acid.

A compound that acts as both a Bronsted - Lowry acid and base together is called amphoteric.

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You might be interested in

Which is the correct equilibrium constant expression for the following reaction? Fe2O3(s) + 3H2(g) --> 2Fe(s) + 3H2O(g) Kc =

svetlana [45]

Answer:

The equilibrium constant Kc = [Fe]²*[H2O]³ / [Fe2O3][H2]³

Explanation:

Step 1: Data given

For the reaction aA + bB ⇆ cC + dD

the equilibrium constant Kc = [C]^c * [D]^d/[B]^b*[A]^a

Step 2: The balanced equation

Fe2O3(s) + 3H2(g) --> 2Fe(s) + 3H2O(g)

Step 3: Calculate the equilibrium constant Kc

Kc = [C]^c * [D]^d/[B]^b*[A]^a

⇒with [C] = [Fe]

⇒ with c = 2

⇒with [D] = [H2O]

⇒with d = 3

⇒with [A] = [Fe2O3]

⇒with a = 1

⇒with [B] = [H2]

⇒with b = 3

Kc = [C]^c * [D]^d/[B]^b*[A]^a

Kc = [Fe]²*[H2O]³ / [Fe2O3][H2]³

The equilibrium constant Kc = [Fe]²*[H2O]³ / [Fe2O3][H2]³

6 0

3 years ago

The density of wind-packed snow is estimated to be 0.35 g/cm^3. A flat roof that is 35 by 43 feet has 28 inches of snow on it. H

xz_007 [3.2K]

Answer:

There are 76728.2 pounds of snow on the roof

Explanation:

To determine how many pounds of snow are on the roof,

First we will determine the mass of the snow in grams.

From the question,

Density of snow = 0.35 g/cm³

From

Density = Mass / Volume

To determine the mass, we will first find the volume.

From the question, a flat roof that is 35 by 43 feet has 28 inches of snow on it, that is, the height of the snow on the roof is 28 inches.

Area of the roof = 35 ft × 43 ft = 1505 ft²

Volume of the snow = Area of the roof × Height of the snow

Height of the snow = 28 inches

12 inches = 1 foot

∴ 28 inches = 28/12 feet = 2.3333 ft

Hence,

Volume of the snow = 1505 ft² × 2.3333 ft = 3511.62 ft³

Volume of the snow = 3511.62 ft³

This is the volume of the snow in cubic feet

Now, we will convert cubic feet (ft³) to cubic centimeter (cm³)

1 ft = 30.48 cm

and 1 ft³ = 30.48³ cm³ = 28316.84659 cm³.

If 1 ft³ = 28316.84659 cm³

∴ 3511.62 ft³ will be 3511.62 × 28316.84659 cm³ = 99438004.83 cm³

Hence, Volume of snow = 99438004.83 cm³

Now, we can determine mass of snow in grams

From

Density = Mass / Volume

Mass = Density × Volume

Mass = 0.35 g/cm³ × 99438004.83 cm³

Mass = 34803301.69 g

Now, we will convert the mass from grams to pounds

1 pound = 453.592 grams

If 453.592 grams = 1 pound

Then, 34803301.69 g will be 34803301.69 / 453.592 pounds = 76728.2 pounds

Hence, there are 76728.2 pounds of snow on the roof.

6 0

3 years ago

A train took 18 hours to finish a 1530 miles journey. What was

Greeley [361]

Answer: 85Mph
Explanation: 1530 divided by 18=85

3 0

4 years ago

When 7.02 grams of a compound containing only carbon and hydrogen was burned completely in 25.5 grams of oxygen, 21.0 grams of c

seropon [69]

Mass of water is 11.52 grams.

Overall chemical equation for reaction of combustion a compound containing only carbon and hydrogen:

CxHy + O₂ → xCO₂ + y/2H₂O

m(CxHy) = 7.02 g; mass of the compound

m(O₂) = 25.5 g; mass of oxygen

m(CO₂) = 21.0 g; mass of carbon dioxide

m(H₂O) = ?; mass of water

Conservation of matter states that the mass of the reactants have to be equal to the mass of the products.

m(CxHy) + m(O₂) = m(CO₂) + m(H₂O)

7.02 g + 25.5 g = 21.0 g + m(H₂O)

m(H₂O) = 32.52 g - 21.0 g

m(H₂O) = 11.52 g; mass of water

More about conservation of matter: brainly.com/question/18318085

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6 0

2 years ago

Why are metals generally good conductors of electric current?

lakkis [162]

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

Because the atoms in metals form a matrix through which outside electrons may easily travel, metals are good conductors of electricity and heat. They generate a sea of electrons around the positive nuclei of the interacting metal ions, rather than circling their particular atoms.

The free flow of shared electrons can carry an electric current through a metal. Carbon atoms join with iron atoms to create bonds.

8 0

3 years ago