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1 year ago

Simple proteins consist of amino acids linked together in a long chain; a small portion of such a chain is

1 answer:

7 0

While there is some restriction on rotation around a double bond, it is possible to rotate around a single bond. The C-N bond (shown by the arrow) acquires certain double bond characteristics through resonance. As a result, the C-N double bond prevents the bond from rotating.

<h3>What is a chemical bond?</h3>

A chemical bond is a strong bond that can be formed between atoms, ions, or molecules to create chemical compounds. In covalent bonds, the electrons are shared, whereas, in ionic bonds, the electrostatic attraction of two ions with opposing charges forms the link. In contrast to dipole-dipole interactions, the London dispersion force, and hydrogen bonding, which are examples of "weak bonds" or "secondary bonds," covalent, ionic, and metallic bindings are examples of "strong bonds" or "primary bonds."

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Which one of the following types of rock would weather the fastest

Arte-miy333 [17]

The small pieces of clay will be the one which likely erodes quickest.

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3 years ago

Which of the following is an example of pseudo science? (choose one, not two)

Leokris [45]

Answer:

The answer to your question is: B. Astrology

Explanation:

A. Biology is a science because it make used of the scientific method to prove its theories, so this option is wrong.

B. Astrology this is the right option because it does not follow the scientific method to prove that stars and planets determine our future.

C. Chemistry it make used of the scientific method, the results can be tested and replicative.

D. Physics it's a science, its an extremely metholodogical science, this is not the right option.

E. Medicine it's a science, follows the scientific method, it establishes laws and theories.

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3 years ago

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What are the distinguishing features of each extraction process: pyrometallurgy, electrometallurgy, and hydrometallurgy? Explain

Tatiana [17]

<h3>1.Pyrometallurgy</h3>

This techniques involves the high temperature at which the Chemical reactions took place between the gases and solids.

Pyrometallurgy involves calcination, Roasting and smelting process.

<h3> 2.Electrometallurgy</h3>

This technique involves the metallurgy operations that took place in electrolytic cell.

Electro- winning and Electro-refining are some of the electrometallurgy process

<h3> 3. Hydrometallurgy</h3>

Reactions involves aqueous solutions to extract metal, use this technique.

Hydrometallurgy involves precipitation , distillation , adsorption and solid extraction operations.

Now,

Type of metallurgy are used in the production of Fe is Roasting and Smelting.

<h3>What is Roasting?</h3>

Ore is heated strongly with other substances, usually with Oxygen.
Process temperature is below the melting point.
Some of Impurities is removed as volatile substance.

In this reaction,

FeO changes to Fe₂O₃ to prevent the loss of iron during smelting.

4FeO +O₂→ Fe₂O₃.

Now,

<h3> What is Smelting?</h3>

The oxides of less electropositive metals like Pb, Zn, Fe, Sn, etc.
These are reduced by strongly heating with coal or coke.
Reduction of the oxide with Carbon at high temperature is known as Smelting.

Thus from the above conclusion we can say that , metallurgy are used in the production of Fe is Roasting and Smelting.

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1 year ago

What do the digestive system and skeletal system have in common?

8090 [49]

Answer:

Answer:Your skeletal system relies on the nutrients it gains from your digestive system to bulid strong healthy bones .A body system is a group of parts that work together to serve a common purpose .

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3 years ago

When the water level of a stream or river exceeds its natural banks, it has reached its

shusha [124]

C. FLOOD STAGE is reached when the water level of a stream or river exceeds its natural banks.

Flood stage is a level at which a body of water's surface has risen to a sufficient level to cause sufficient inundation in areas that are not normally covered by water, causing inconvenience or a threat to life and/or property.

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2 years ago

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