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3 years ago

Which of these describes the bonding between oxygen and a third hydrogen atom to form the hydro noun ion, H3O+

Chemistry

1 answer:

trapecia [35]3 years ago

8 0

There is a co-ordinate bond present between oxygen and the third hydrogen atom

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When explaining about structural classifications to a group of students, the instructor discusses the peptides and proteins. The

stepladder [879]

Answer:

There are approximately 200 amino acids.

Explanation:

Proteins are usually larger than peptides. In addition, proteins contains amino acids which are about 50 and more than while the amino acids in peptides are just between 2 and 50. On the other hand, growth hormone which is also known as somatotropin is a type of peptide cell regeneration, growth, and reproduction. The number of amino acids in the growth hormones are approximately 200.

5 0

3 years ago

A solution contains 1 LaTeX: \times\:×10−4 M OH– ions. Calculate the solution pH value, and determine if the solution is acidic,

oksano4ka [1.4K]

Answer: The pH value of the solution is 10 and the solution is basic in nature.

Explanation:

To calculate the pH of the solution, we need to determine pOH of the solution. To calculate pOH of the solution, we use the equation:

$pOH=-\log[OH^-]$

We are given:

$[OH^-]=1\times 10^{-4}M$

Putting values in above equation, we get:

$pOH=-\log(1\times 10^{-4})\\\\pOH=4$

To calculate pH of the solution, we use the equation:

$pH+pOH=14\\pH=14-4=10$

There are three types of solution: acidic, basic and neutral

To determine the type of solution, we look at the pH values.

The pH range of acidic solution is 0 to 6.9
The pH range of basic solution is 7.1 to 14
The pH of neutral solution is 7.

As, the pH of the solution is 10 and is lying in the range of basic solution, so the solution is basic in nature.

5 0

3 years ago

What is meant by a chemical bond? why do atoms form bonds with each other? why do some element esist as molecules in nature inst

Alex Ar [27]

It is the attraction between two atoms resulting from a redistribution of their outer electrons. Atoms form chemical bonds in order to make their outer electron shells more stable. Some resist due to some being very big and electronegative

5 0

3 years ago

H2(g) + I2(g) ↔2HI(g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices

uranmaximum [27]

Answer:

Towards the products, or to the right

Explanation:

There are no provided answer choices, but the answer should be to the right.

By Le Chatelier's principle, which basically can be summarized as "if you mess with chemistry, chemistry messes back", if more reactants are added, the equilibrium will shift to the right towards the products in order to make more products and counteract the increase in I₂.

7 0

3 years ago

Which of the following best describes carbon dioxide?

sdas [7]

Answer: B. Compound

Explanation: Compound are the substances which are formed by the combination of two or more elements.

Although the phase of the carbon dioxide is gaseous that is single phase, stll it is not considered as the Homogeneous mixture because in carbon dioxide , both the elements carbon and oxygen reacts with each other chemically to form the gas. This doesnot happen in te mixture.

Thus carbon dioxide is considered as the compound.

3 0

4 years ago