Why do hydrogen bonds form between water molecules?

Answers

Answer 1

Answer:

Answer:

In water molecules the oxygen atom attracts the negatively charged electrons more strongly than the hydrogen. This gives water an asymmetrical distribution of charge so that it is a polar molecule. ... Because the water molecules are small, many of them can surround one molecule of the solute and form hydrogen bonds.

Explanation:

Answer 2

Answer:

Final answer:

Hydrogen bonds form between water molecules due to the charge instability within the molecule caused by the difference in electronegativity between the oxygen and hydrogen atoms. These bonds lead to the unique behavior of water in its various states.

Explanation:

Hydrogen bonds form between water molecules due to the polar nature of a water molecule. The oxygen atom in water molecules is more electronegative, pulling the shared electron closer resulting in a slight negative charge. Conversely, the hydrogen atoms end up with a slight positive charge. These charges lead to a hydrogen bond when the slightly positive hydrogen atom of one water molecule is attracted to the slightly negative oxygen atom of another water molecule.

Hydrogen bonds are weaker than covalent or ionic bonds, but their large numbers in water lead to significant effects. They help maintain the liquid state of water at room temperature, among other unique properties. Hydrogen bonds aren't exclusive to water molecules; they can also be observed in DNA structure and protein formation.

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How does blood cells size compare to E. coli bacteria

Answers

E Coli bacterium are about 2.0 micrometers in length and .25 to 1 micrometer in diameter. In comparison, a red blood cell is about 6 to 8 micrometers in diameter and a thickness that ranges from .8 to 1 micrometer in the center to 2 to 2.5 micrometers at the thickest point.

Which kingdom includes autotrophic and heterotrophic, unicellular and multicellular organisms? A) Animalia B) Fungi Plantae D) Protista

Answers

Answer: D) Protista

Explanation:

The kingdom Protista includes organisms which are simple eukaryotic, they are usually composed of single cell or multicellular organisms. These organisms either live in water or in terrestrial habitats. Some of the organisms in the kingdom Protista exhibit characteristics which are similar to plants and animals. As, some organisms are parasitic like animals and others can conduct photosynthesis like plants in order to obtain food. Therefore, according to the above explanation kingdom Protista includes autotrophic, hetrotrophic, unicellular and multicelluar organisms.

The answer would be D
because all of those contain Protista :)

An orange roughy fish is a fourth-level consumer that requires almost ten times the amount of food available from the primary producers in the ecosystem. Why isn't more energy available from the primary producers?A. Primary producers are not very efficient and lose most of their energy to the environment.
B. There is too much competition from other fourth-level consumers, leaving very little available to the orange roughy.
C. Only a fraction of energy is passed through each level, so there is less available to upper-level consumers.
D. The energy flow is unbalanced and tends to move toward the lower levels.

Answers

The correct answer is option C

The fraction of energy that is available to the fourth level of the ecosystem is very less because the fraction of energy is passed on through each level.

According to the law, only 90% of the energy is transferred through each tropic level and rest of the energy is lost in the form of heat.

Thus, only a fraction of energy reaches the upper tropic level starting from the producers.

C is the correct answer. Remember the 10% rule that only 10% of the energy is passed from one trophic level to the next. Hope this helps!

Nucleotides are the basic unit of which macromolecules?

Answers

Answer:

Nucleic acid

Explanation:

Nucleotides are the basic unit of Nucleic acid

A nucleotide consists of three groups –

a) 5-carbon sugar (ribose or deoxyribose)

b) a nitrogen-rich base - There are four nitrogen rich base namely cytosine (C), guanine (G), adenine (A), thymine (T)

c) and a phosphate group

The nucleotides are the repeating units of a nucleic acid and therefore a nucleic acid can be considered as polymer while a nucleotide becomes its monomer unit.

Nucleotides are the basic unit of the macromolecules, nucleic acid. Nucleic acids are the deoxyribonucleic acid (DNA) and the ribonucleic acid (RNA.) These nucleic acids are large biomolecules that are far as known, is responsible for all forms of life.

Anita has just pointed her toe in dance class. What Anatomical motion did she make?

Answers

Answer:

Plantarflexion

Explanation:

The term plantar flexion refers to the movement of the foot in a downward motion away from the body.

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Answers

the answer is b because you have to test the hypothesis to find your answer

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