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4 years ago

Identify the compounds below as a brønsted-lowry acid or lewis acid by clicking and dragging it into the correct column

Chemistry

2 answers:

Inessa [10]4 years ago

7 0

Example of Brønsted – Lowry acid-base:

HCl (aq) + H2O (l) → Cl− (aq) + H3O + (aq)

When viewed with the Brønsted-Lowry theory, in the ionization reaction of HCl when dissolved in water, HCl acts as an acid and H2O as a base. The HCl turns into a Cl− ion after giving a proton (H +) to H2O. H2O accepts protons by using a pair of free electrons in the O atom to bind to H + to form hydronium ions (H3O +).

Examples of Lewis Acid Bases:

H ++ NH3 → NH4 +

Ion H + (Proton) is a Lewis Acid because it can accept Electron Pairs, while NH3 is a Lewis Base.

<h2>Further Explanation </h2>

Acid is a compound that makes a sour taste. A base may be a compound that reacts with acids.

The Brønsted – Lowry acid-base theory

The Brønsted-Lowry Theory is an acid-base reaction theory proposed separately by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923. The basic concept of this theory is that when an acid and a base react with each other, acids will form their conjugate bases, and bases form their conjugate acids through proton exchange (hydrogen cations, or H +). This theory could be a generalization of the Arrhenius theory.

Lewis Acid-Base Theory

In 1923, G. N. Lewis proposed a broader acid-base theory compared to the two previous theories by emphasizing the electron pair associated with structure and bonding. According to the definition of Lewis acid-base:

acid is an electron pair acceptor.
bases are electron-pair donors.

Learn more

definition of Acid nd Base brainly.com/question/7215796

definition of The Brønsted – Lowry acid-base theory brainly.com/question/7215796

definition of Lewis Acid-Base Theory brainly.com/question/7215796

Details

Grade: College

Subject: Chemistry

keywords: The Brønsted – Lowry acid-base theory, Lewis Acid-Base Theory

Vesna [10]4 years ago

3 0

There are many types of acid or bases. Based on the Bronsted-Lowry definition,

* A Bronsted-Lowry acid is a proton donor
* A Bronsted-Lowry base is a proton acceptor

Take this reaction for example:
HCl(aq)+ N<span>H</span>₃(aq)→N<span>H</span>⁴⁺(aq)+C<span>l</span>⁻(aq<span>)
</span>
HCl donates a proton, so it is a Bronsted-Lowry acid. Consequently, ammonia accepts this proton, so it is the Bronsted-Lowry base.

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9. Which practice has been able to save some organisms from extinction?

Archy [21]

The practice that has been able to save some organisms from extinction is cross breeding.

<h3>What is cross breeding?</h3>

Cross breeding is the process of producing separate strains of the same species in order to create new traits.

Living organisms are bound to go extinct when faced by certain unfavorable conditions that cannot be adapted to.

However, the production of resistant strains of the same species of an organism via cross breeding can help prevent them from going extinct.

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2 years ago

What does each letter mean in the acronym pufart mean

Tcecarenko [31]

Answer:

The acronym is used to remember evidence of a chemical change.

Explanation:

P=precipitate

U=unexpected color change

F=fizzing

A=aroma

R=replaced by a new substance

T= temperature change

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3 years ago

A solution of 34% nacl is separated by a semipermeable membrane to a solution of 22% glucose. the membrane is only permeable to

Katyanochek1 [597]

The net osmosis will occur in the direction of the NaCl solution. This is because the solute concentration on that side is greater than that of the glucose solution. Osmosis is the process by which liquids move through semi permeable membrane from the region of lower concentration to the region of higher concentration.
Thus the water is going to move from the glucose solution into the NaCl solution.<span />

7 0

4 years ago

Read 2 more answers

One of the uses of methanol (CH3OH) in dilute form is as a windshield washer antifreeze. In pure form, methanol has a molar conc

Dovator [93]

<h3>Mol of methanol =12.35</h3><h3>Further explanation</h3>

Mole itself is the number of particles contained in a substance

1 mole = 6.02.10²³ particles

Mole : the ratio of the amount of substance mass and its molar mass

$\large{\boxed{\boxed{\bold{mole=\frac{mass}{molar\:mass}}}}$

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Molar concentration of methanol=24.7 M

Volume of solution = 500 ml = 0.5 L

$\tt mol=M\times V\\\\mol=24.7\times 0.5\\\\mol=12.35$

7 0

3 years ago

Two metals (Metal A and Metal B) are both exposed to a laser which emits photons that have a greater energy than the work functi

Tresset [83]

Answer:

shorter than

equal to

Explanation:

Let us go back to the Einstein photoelectric equation;

KE = E - Wo

Where

KE = kinetic energy of the photoelectron

E = energy of the incident photon

Wo = work function of the metal

But KE = 1/2mv^2

Thus the velocity of the emitted photoelectron is determined by the kinetic energy of the emitted photoelectron.

Since the work function of metal A is smaller than that of metal B, the kinetic energy of photoelectrons emitted from metal A is greater than that of photoelectrons emitted from metal B . Therefore, the velocity of electrons from metal A is greater than those from metal B.

From de Broglie relation;

λ = h/mv

Where;

λ = de Broglie wavelength

h = Plank's constant

m = mass

v = velocity

Metal A producing electrons with greater velocity will lead to a shorter de Broglie wavelength compared to those from metal B.

The number of photoelectrons ejected is determined by the intensity of the photons and not the energy of the incident photons or the work function of the metals. Since the two metals are exposed to the the same laser, equal number of photoelectrons are produced for metals A and B.

8 0

3 years ago