What is the number of this particle in a phosphorus atom?
Ap ex
Answers
Answer:
Fósforo
Símbolo P, número atómico 15, peso atómico 30.9738. El fósforo forma la base de gran número de compuestos, de los cuales los más importantes son los fosfatos. En todas las formas de vida, los fosfatos desempeñan un papel esencial en los procesos de transferencia de energía, como el metabolismo, la fotosíntesis, la función nerviosa y la acción muscular. Los ácidos nucleicos, que entre otras cosas forman el material hereditario (los cromosomas), son fosfatos, así como cierto número de coenzimas. Los esqueletos de los animales están formados por fosfato de calcio.
Cerca de tres cuartas partes del fósforo total (en todas sus formas químicas) se emplean en Estados Unidos como fertilizantes. Otras aplicaciones importantes son como relleno de detergentes, nutrientes suplementarios en alimentos para animales, ablandadores de agua, aditivos para alimentos y fármacos, agentes de revestimiento en el tratamiento de superficies metálicas, aditivos en metalurgia, plastificantes, insecticidas y aditivos de productos petroleros.
De casi 200 fosfatos minerales diferentes, sólo uno, la fluoropatita, Ca5F(PO4)3, se extrae esencialmente de grandes depósitos secundarios originados en los huesos de animales y que se hallan en el fondo de mares prehistóricos, y de los guanos depositados sobre rocas antiguas.
La investigación de la química del fósforo indica que pueden existir tantos compuestos basados en el fósforo como los de carbono. En química orgánica se acostumbra agrupar varios compuestos químicos dentro de familias llamadas series homólogas.
Esto también puede hacerse en la química de los compuestos de fósforo, aunque muchas familias están incompletas. La familia mejor conocida de estos compuestos es el grupo de cadenas de fosfatos. Las sales de fosfatos constan de cationes, como el sodio, junto con cadenas de aniones, como (PnO3n+1)(n+2)-, que pueden tener de 1 a 1 000 000 de átomos de fósforo por anión.
Los fosfatos se basan en átomos de fósforo rodeados en una disposición tetraédrica por átomos de oxígeno, el miembro más pequeño de la familia es el anión simple PO3-4 (el ion ortofosfato). La familia de las cadenas de fosfato se basa en hileras alternadas de átomos de fósforo y oxígeno en que cada átomo de fósforo permanece en el centro de un tetraedro de cuatro átomos de oxígeno. Hay también una familia estrechamente relacionada de fosfatos cíclicos.
Una característica estructural interesante de muchos de los compuestos del fósforo conocidos es la formación de estructuras tipo jaula. Ejemplos de estas moléculas son el fósforo blanco, P4, y uno de los pentóxidos de fósforo, P4O10. Las estructuras tipo red son comunes; por ejemplo, los cristales de fósforo negro en que los átomos están enlazados unos con otros.
En la mayor parte de sus compuestos, el fósforo está enlazado químicamente a cuatro átomos inmediatos. Hay gran número de compuestos en los que uno de los cuatro átomos está ausente y en su lugar hay un par de electrones no compartidos.
Hay también unos cuantos compuestos con cinco o seis átomos unidos al fósforo; son muy reactivos y tienden a ser inestables. Durante los años 60 y 70, se prepararon muchos compuestos orgánicos de fósforo. La mayor parte de estas estructuras químicas incluye tres o cuatro átomos enlazados al fósforo, pero existen también estructuras con dos, cinco o seis átomos unidos a cada átomo de fósforo.
Casi todo el fósforo utilizado en el comercio está en forma de fosfatos. La mayor parte de los fertilizantes fosfatados constan de ortofosfato diácido de calcio u otofosfato ácido de calcio muy impuros, Ca(H2PO4)2 y CaHPO4. Estos fosfatos son sales del ácido ortofosfórico.
El compuesto de fósforo de mayor importancia biológica es el adenosintrifosfato (ATP), que es un éster de la sal, el tripolifosfato de sodio, muy utilizado en detergentes y ablandadores de agua. Casi todas las reacciones en el metabolismo y la fotosíntesis requieren la hidrólisis de este tripolifosfato hasta su derivado pirofosfato, llamado adenosindifosfato (ADP).
Efectos del Fósforo sobre la salud
El Fósforo puede ser encontrado en el ambiente más comúnmente como fosfato. Los fosfatos son substancias importantes en el cuerpo de los humanos porque ellas son parte del material de ADN y tienen parte en la distribósforo que es conocida. Cuando el fósforo blanco ocurre en la naturaleza este puede ser un peligro serio para nuestra salud. El fósforo blanco es extremadamente venenoso y en muchos casos la exposición a él será fatal. En la mayoría de los casos la gente que muere por fósforo blanco ha sido por tragar accidentalmente veneno de rata. Antes de que la gente muera por exposición al fósforo blanco ellos a menudo experimentan náuseas, convulciones en el estómago y desfallecimiento. El fósforo blanco puede causar quemaduras en la piel, dañar el hígado, corazón y riñones.
Efectos ambientales del Fósforo
Answer:
Name: Phosphorus
Symbol: P
Atomic Number: 15
Atomic Mass: 30.974 atomic mass units
Number of Protons: 15
Number of Neutrons: 16
Number of Electrons: 15
Melting Point: 44.1° C
Boiling Point: 280.0° C
Density: 1.82 grams per cubic centimeter
Normal Phase: Solid
Family: Nonmetals
Period: 3
Cost: $4 per 100 grams
Origin of Name From Greek words phos, meaning light and phoros meaning bearer
Date and Place of Discovery In 1669 in Germany
Discovered by Hennig Brand
Explanation:
Related Questions
An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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What are the main conflicts in the story and how are they resolved Of Mice and Men?
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Of Mice and Men is a novel which was written by John Steinbeck in 1937. The conflicts in the story are:
1. Man vs. Nature: The main conflict here is the harshness of nature and the difficulty of finding work in the Great Depression. This conflict is never fully resolved, as it is a constant struggle for the characters throughout the novel.
2. Man vs. Himself: This is seen in George's internal struggle over his decision to kill Lennie to spare him from a worse fate. George ultimately decides to shoot Lennie himself, and though it is a difficult decision, he makes it to protect his friend.
3. Man vs. Society: This is seen in the discrimination and prejudice faced by Crooks and the other characters because of their race. This conflict is also never fully resolved, but the characters are able to find some solace in the understanding and friendship they have for one another.
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Write on meiosis and mitosis; relevances and the processes.
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Answer:
Mitosis is the process of cell division usually dedicated to cell growth or asexual reproduction. There are five phases of mitosis, which include prophase, prometaphase, metaphase, anaphase, and telophase. These phases are followed by cytokinesis. The end product of mitosis is two diploid daughter cells that are genetically identical to the mother cell.
Meiosis is the process of cell division that is dedicated to sexual reproduction. Meiosis occurs in two parts, which the same phases of mitosis that are essentially repeated twice. Meiosis increases genetic diversity due to crossing over and independent assortment that occurs during meiosis 1. The end product of meiosis are four haploid cells that originated from one mother cell.
Explanation:
Are you more likely to observe evolution between the s0 and s1 or the s0 and f1 population? explain your reasoning
Answers
Bettween the s0 and s1 or the s0 and f1 population, evolution will be observe most likely in the population with less gene flow and higher rate of mutation.
What is evolution?Evolution refers to a series if gradual and cumulative and transferrable changes which occur in organisms that resulted in the formation of new species from existing species.
Factors affecting evolution include;
gene flow,the rate of mutation andnatural selection.When there is less gene flow between populations as well as higher rate of mutation, evolution of species will be most like likely.
Therefore, between the s0 and s1 or the s0 and f1 population, evolution will be observe most likely in the population with less gene flow and higher rate if mutation.
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Select the correct answer from the drop-down menu. What are the two specific concerns of species diversity? Species diversity is concerned with both A, species survival
B, species richness
C, species growth rate
D, species demographic and A, evenness of species abundance
B, species survival
C, species growth rate
D, species gender
Answers
Answer:
The answer above was wrong. Maybe it wanted it put in a different way but don’t do what i did
Explanation:
Plato
The two specific concerns of species diversity are species survival and evenness of species abundance. The correct options are A and B.
What is species diversity?"Species diversity is defined as the number of different species present in an ecosystem and their relative abundance." When all of the species present are equally abundant in the area, diversity is greatest.
Species diversity is a measure of the number of different species found in a given ecosystem or habitat.
It is critical to be concerned about species survival because the extinction of a species can have a negative impact on the entire ecosystem.
Furthermore, the evenness of species abundance is important to consider because the dominance of one or a few species can have a negative impact on the diversity and stability of an ecosystem.
Thus, the correct options are A and B.
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during the second half of glycolysis, what occurs?
Answers
Answer:
Glucose becomes fructose. ATP is made during the second half of glycolysis . ;)
Explanation:
6. The genetic material that provides instructions for all cell processes A.
Cell membrane B. Chloroplast C. DNA D. Nucleus E. Cytoplasm F. Cell wall *
Answers
Answer:
C
Explanation:
Answer:
DNA
Explanation:
DNA is the genetic material that provides instructions for all cell processes.
HELP! this is a biology question so please answer if you know:)
Answers
Answer:
its cells cannot be created or destroyed
In humans, which cell is most likely to undergo mitosis?
Answers
Answer: Explanation:
As previously mentioned, most eukaryotic cells that are not involved in the production of gametes undergo mitosis. These cells, known as somatic cells, are important to the survival of eukaryotic organisms, and it is essential that somatic parent and daughter cells do not vary from one another.
Vessels that bring blood toward the glomerulus are called the: afferent arterioles efferent arterioles peritubular capillaries vasa recta
Answers
The vessels that bring blood toward the glomerulus are called **afferent arterioles**.In the renal system, the glomerulus is a network of tiny blood vessels located in the kidney.
The afferent arterioles are the small branches of the renal artery that deliver blood to the glomerulus. They supply blood from the systemic circulation into the glomerulus, where the process of filtration occurs. The afferent arterioles have a larger diameter compared to the efferent arterioles, which allows for high blood flow into the glomerulus, facilitating the filtration of waste products and substances from the blood into the renal tubules. After filtration occurs in the glomerulus, the blood exits through the efferent arterioles, continuing the renal circulation.
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which part of the body regulates sex hormones
Answers
Answer:
The main glands that produce sex hormones are the adrenal glands and the gonads, which include the ovaries in females and testes in males. Sex hormones are also important for a range of bodily functions and a person's general health.
Explanation:
adrenal glands and the gonqds pqrt of the body regulate sex hormones .
Which statement describes the chamber marked with a star? Human heart A. It is the right atrium, and it pumps blood to the lungs. B. It is the right ventricle, and it pumps blood to the lungs. C. It is the right atrium, and it pumps blood to the body. D. It is the right ventricle, and it pumps blood to the body.
Answers
Answer: It is the right ventricle, and it pumps blood to the body.
Explanation:
Answer:
It is the right ventricle, and it pumps blood to the lungs.
RIGHT ANSWER
The waves of the electromagnetic spectrum can travel through....
Answers
Answer:
waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
Explanation:
The_______ harness light energy and convert it into chemical energy. The ______ convert fuel particles into usable energy for the cell.
Answers
First one is chlorophyll, second one is mitochondria.
Plants lose as much as __________ molecules of water for every molecule of carbon dioxide they assimilate
Answers
Answer:
I think the answer is 1,000
Explanation:
If the mRNA codon had the sequence GUA, what would the complementary anti-codon sequence be?
CAT
CAU
TAC
Answers
Which statement accurately describes dark matter?
1: It is the same as dark energy.
2: It is well understood by scientists.
3 :It does not emit electromagnetic radiation.
4: It can be observed by shifts in red and blue light.
Answers
Answer:
1
Explanation:
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Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10−27 kg/m3. .
To use the energy in glucose molecules, what must happen to glucose in all living things?
Answers
Answer:the glucose molecule is oxydised in the mitochondria to produce co2 + water+ energy
Explanation:
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Membrane lipid bilayers consist primarily of ____.
a. phospholipids
b. cholesterol
c. saturated fatty acids
d. enzymes
e. proteins
Answers
what amino acids are most likely to be found in the core of a water-soluble globular protein?
Answers
Amino acids that are most likely to be found on inside of a globular protein are those with non-polar, hydrophobic side chains such as alanine, leucine, valine, isoleucine, and methionine. These amino acids tend to be buried within protein's hydrophobic core, away from the aqueous environment.
Most often, the hydrophobic amino acid side chains are buried, closely packed, in interior of a globular protein, out of contact with water. Hydrophilic amino acid side chains lie on the surface of the globular proteins exposed to the water
As mentioned earlier, hydrophilic amino acids are present on surface of globular proteins while the hydrophobic amino acids are buried inside. Interactions among polar groups on the surface of proteins and the polar water molecules contribute to their increased solubility.
hydrophobic amino acids include alanine (Ala, A), valine (Val, V), leucine (Leu, L), isoleucine (Ile, I), proline (Pro, P), phenylalanine (Phe, F) and cysteine (Cys, C). These residues typically form the hydrophobic core of proteins, which is isolated from the polar solvent.
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Should genetically modified salmon be used as food? Why or why not?
Answers
The salmon are safe to consume, the added DNA is safe for both the fish itself, & they grow more quickly as promised by the sponsor. The salmon can grow more quickly as a result.
What is DNA exactly?Deoxyribonucleic acid, also known as DNA, is just the molecule that includes the genetic material necessary for an organism's growth and operation. The structure of DNA is a double helix, which is made up of two connected strands that loop around one another to mimic a twisted ladder.
DNA is it DNA or RNA?RNA contains ribonucleic acidity, whereas DNA is complementary to the template strand. Despite the fact that both DNA and RNA contain specific genes, there are a lot of distinctions between the two.
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Considering your knowledge of carbohydrates, evaluate the use of chitin as a component of health foods.
Your response must be at least 75 words in length.
Answers
Carbohydrates are sugars, starches, and fibers, all of which are present in different quantities in foods.
Chitin is a polysaccharide that makes up the exoskeletons of crustaceans, insects, and some fungi. It is commonly utilized as a dietary supplement. Because chitin has the potential to lower blood cholesterol and lipids, it is frequently utilized as a component of health foods. It can also help in the management of obesity and weight loss.
Chitin has a wide range of health benefits, including antioxidant and anti-inflammatory effects. It has been utilized in a variety of health food supplements, including weight loss supplements, as it has been shown to have a satiating effect.
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Define Metabolism.. !
Answers
Answer:
Metabolisms are the chemical processes that occur within a living organism in order to maintain life
Explanation:
A ______ is synthesized from cholesterol and can diffuse across the plasma membrane.
Answers
Proteins are synthesized from cholesterol and can diffuse across the plasma membrane.
What are proteins?Numerous building ingredients known as amino acids are used to construct proteins. To provide amino acids for the development and maintenance of our cells and tissues, our body needs nutritional protein. Our needs for protein in our diet fluctuate as we age. Adults should take at least 0.83 g of protein per kilogramme of body weight per day, or 58 g for a 70 kg adult, according to the European Food Safety Authority (EFSA). The quality and digestibility of plant- and animal-based proteins varies, but most people don't usually care as long as their intake of total protein matches their needs. We ought to try to eat protein from a variety of sources that is good for the earth and for our health.
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A steroid hormone can diffuse across the plasma membrane and is created from cholesterol.
What category of hormones are created from cholesterol?The adrenal cortex, the testicles, and the ovaries are the three "steroid glands" that create a group of hormones collectively known as "steroid hormones." Additionally, throughout pregnancy, the placenta secretes steroid hormones. Cholesterol serves as the precursor to all steroid hormones.
Which hormone class comes from cholesterol and can pass through cell membranes?Cholesterol is used to make steroid hormones. Thyroid hormone and steroid hormones both dissolve in lipids. Other hormones generated from amino acids all dissolve in water. In order to connect with an intracellular receptor, hydrophobic hormones can diffuse through the membrane.
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usually, a river ________ at its source compared to farther downstream.
Answers
There can be many answers for these king of question for eg:- Its wider
which of the following are key elements of darwin's theory of evolution by natural selection?
Answers
Answer:
Independent assortment and crossing over contribute to diversity within a population's gene pool. These processes occur during meiosis and result in the recombination of DNA.
Explanation:
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The three pillars of Darwin's theory of evolution are genetic variety, fitness, and adaptation. Overproduction and competition are other crucial components of this process.
What Darwin's theory of evolution by natural selection?Charles Darwin's theory of evolution is known as natural selection. Due to the limited supply of resources in nature, animals have inherited traits that aid in both survival and reproduction.
Typically, produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Natural populations exhibit variation, and every population has more offspring than the environment can support. The result of this Overproduction is that those people who have the highest level of environmental genetic fitness will have offspring who are better able to compete in that environment.
Therefore, Genetic variation, fitness, and adaption are all factors in Darwin's theory of evolution.Overproduction and competition are other crucial components of this process.
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George has a cramp in the posterior part of his leg. Where is the cramp?
A. Ankle
B. Calf
C. Knee
D. Heel
Answers
The posterior part of the leg where George must have experiences the cramp is the calf.
The calf which is the back portion or the posterior part of the lower leg in human anatomy. The two largest muscles in the calf compartment are known together as the calf muscle and they attach to the heel through the Achilles tendon. A few other smaller muscles attach to the knee as well as the ankle through long tendons to the toes.
A leg cramp is basically an episode of sudden pain in the muscles present in the leg which is caused by an involuntary contracting or the shortening of the leg muscle. Most commonly, leg cramps occur in the calf muscles and less commonly they also occur in the feet and thighs.
Hence, the correct option is B. Calf
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you have learned that during a solar eclipse the moon passes between the sun and the earth. During a lunar eclipse, the earth passes between the sun and the moon. In this experiment you will simulate both a solar and lunar eclipse.
These supplies are needed:
A large ball about the size of a basketball to represent the earth
A small ball about the size of a tennis ball to represent the moon
A strong light of about 100 watts or more
A method for darkening the room
Note: If your room is difficult to darken, you may use the sunshine as a source of light. You may also want to use cardboard circles in place of balls. Cut one large circle about 8 inches in diameter to represent planet earth. Label it earth. Cut one small circle about 3 inches in diameter. Label it moon.
Procedure:
1. Place the large ball (basketball) about 12 feet from the light source. Then, place the small ball (tennis ball) in the shadow of the large ball. If you are using cardboard circles in place of the balls, hold the large cardboard circle up in the sunshine. Then, place the moon (small cardboard circle) in earth's shadow. When you have lined up the balls or cardboard in this manner, you have made a shadow fall on the moon. This shadow represents an eclipse of the moon.
2. Now, shift the balls or cardboard to make the shadow fall on the basketball or largest cardboard. In effect, the sun is being darkened. If you were an observer on the earth, this condition would be a solar eclipse. When the moon comes between the sun and planet earth, a solar eclipse occurs.
The preceding illustration shows how an eclipse can be artificially made. The moon (tennis ball) is darkened by a shadow. This shadow represents a lunar eclipse (moon eclipse). You can reverse the position of the tennis ball and the basketball to represent a solar eclipse.
What did you observe?
Answers
Answer:
A solar eclipse happens when the Moon passes between the Sun and Earth, casting a shadow on Earth that either fully or partially blocks the Sun's light in some areas. This only happens occasionally, because the Moon doesn't orbit in the exact same plane as the Sun and Earth do.
Explanation:
I am guessing in your experiment there, the ball had a complete shadow over it, to show you how a solar eclipse works or looks.
Which of the following is a stressful environmental condition found in degraded areas of New York City? a. The soils are more contaminated, compacted, and disturbed. B. There are too many essential organisms in the soil. C. Surrounding wetlands absorb water too quickly. D. Brownfields tend to be cooler and drier than other areas. Please select the best answer from the choices provided A B C D.
Answers
The stressful environmental condition found in degraded areas of New York City is the soils are more contaminated, compacted, and disturbed.
Soils in degraded areas are often highly polluted by heavy metals, petroleum hydrocarbons, and other pollutants. This makes the soils less fertile and less able to support plant growth.
Degraded areas in New York City are characterized by a stressful environmental condition where the soils are more contaminated, compacted, and disturbed. This soil pollution caused by heavy metals, petroleum hydrocarbons, and other pollutants makes the soils less fertile and less able to support plant growth. Therefore, it is important to restore the health of degraded soils to improve the urban landscape.
The stressful environmental condition found in degraded areas of New York City is caused by the contamination, compaction, and disturbance of soils. Such soils are not suitable for plant growth and may pose a risk to human health. Therefore, it is essential to remediate degraded soils to improve the health of the urban environment.
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In which situation would it be least likely for a scientist to revise her experimental methods?
if her results support her hypothesis
if her data do not support her hypothesis
if no conclusions can be drawn from the data
if results are the same after repeating the procedure
Answers
Answer:
d
Explanation:
the situation which would be least likely for a scientist to revise our experimental method would be if results are the same after defeating the procedure.
In the following situation, it would be least likely for a scientist to revise her experimental methods, If results are the same after repeating the procedure, that is the last option.
What is the repetition in the scientific experiment?When the hypothesis or data from a scientific experiment do not match the expected data, scientists are more likely to repeat the experiment and when the result remains the same after many repeatation, scientists are less likely to repeat the experiment. Many experiments are replicated with new technologies in order to obtain a new result, so repeats are quite common in scientific experiments to check the facts and findings.
Hence, in the following situation, it would be least likely for a scientist to revise her experimental methods, If results are the same after repeating the procedure, that is the last option.
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