To form a hydrogen bond, what must the non-hydrogen atom (NN, OO, or FF) involved in the bond possess?

Answers

Answer 1

Answer:

Answer:

It can occur with any of the atoms mentioned

Explanation:

Hydrogen bonds are the most intense type of intermolecular force that occurs between permanent dipoles of molecules, where the positive pole is always hydrogen, and the negative pole can be fluorine(F), oxygen(O) or nitrogen(N), since these elements are quite electronegative.

In other words, these atoms most strongly attract double-bonded electrons and are negatively charged.

An example to consider is hydrogen fluoride (HF) molecules, a polar molecule. In the solid state, its molecules attract, so that the positive (hydrogen) pole of one molecule attracts the negative (fluorine) pole of another.

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A substance that speeds up the rate of a chemical reaction is calleda. a catalyst.
b. a lipid.
c. a molecule.
d. an element.

Answers

I'm not going toblie I'm stuck with A and B.But to me my gut says A

A substance that speeds up the rate of a chemical reaction is called a catalyst. As a catalyst speeds up the reaction, as an enzyme does.

A rigid cylinder with a movable piston contains 50.0 liters of gas at 30.0 degrees Celsius with a pressure of 1.00 atmosphere. What is the volume of the gas in the cylinder at STP?

Answers

30ºC

30 +273 = 303 K

P₁* V₁ / T₁ = P₂*V₂/ T₂

1.00 * 50.0 = 1 * V₂ / 273

V₂ = 1.00 * 50.0 * 273 / 303 * 1 = V₂

V₂ =13650 / 303

V₂ = 45.0 L

hope this helps!

Efforts to restore wetlands and forests along the coast will most likely _______. a. benefit the economy by providing jobs b. improve wildlife populations c. reduce soil erosion and flooding in coastal areas d. all of the above

Answers

The right answer is D. all of the above.

The restoration and rehabilitation of wetlands are today major challenges to maintain a fabric of natural spaces with high heritage value. The ecological engineering that has developed over many years, inspired by methods of renaturation of coastal, alluvial, grassland and forest natural areas has specificities that it is necessary to share to allow access to the greatest number. This knowledge is built on the basis of feedback and scientific knowledge, which is itself constantly evolving. They constitute a base for conducting sustainable operations that are consistent with the maintenance of ecological trajectories as close as possible to the natural model in balance with human activities.

option d. all of the above

all the option have positive outcomes; benefit the economy by providing jobs, specifically it contributes welfare to the society. Improve wildlife populations, when you say improvement there is an additional change that makes something better or valuable. Reduce soil erosion and flooding in coastal areas; we cannot avoid it but we can prevent the destructive effect of this in our lives. Being prepared from those sudden change can restore wetlands and forests not just along the coast as well as to other areas.

What is the mass of NH4Cl that must dissolve in 200 grams of water at 50 degrees c to make a standard solution?

Answers

Answer:

The mass is 104 grams.

Explanation:

What did Bohr’s model of the atom include that Rutherford’s model did not have?

Answers

What did Bohr’s model of the atom include that Rutherford’s model did not have?

The answer is energy levels

I think it's orbitals.
I'm pretty sure...

The pH is a solution remains constant in the presence of a buffer if acid or base is added beyond the buffer capacity. True or false.

Answers

The strong acid and strong base has high rate constant of dissociation. Weak acid and base are the one whose rate constant for the dissociation is low, they do not dissociate readily in water. Therefore, the given statement is false.

What are acid and base?

Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base are the solution which releases hydroxide ion OH⁻ ion when dissolved in water. pH is measurement of hydronium ion.

A buffer is a solution containing either a weak acid and its salt or a weak base and its salt, which is resistant to changes in pH. The statement is false. When you add an acid or base in amounts greater than the buffer capacity you no longer have the buffer to influence solution pH.

Therefore, the given statement is false.

To know more about acid and bases, here:

brainly.com/question/27228111

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The answer is false. When you add an acid or base in amounts greater than the buffer capacity you no longer have the buffer to influence solution pH

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