A reaction requires 2. 5 moles of zinc oxide. How many grams would this equal to?.
A reaction requires 2.5 moles of zinc oxide, equal to 202.5 grams.
The mole scale is needed as an indication of the amount of substance or compound, mole is the gram of substance divided by the relative molecular mass (Mr). The formula for calculating the moles of a compound is n = gram/Mr
in question:
2.5 mol of zinc oxide: n = 2.5 mol
Mr zinc oxide : Mr = 81 gram/mol
Then grams of zinc oxide are:
n = grams/Mr
grams = Mr x n
grams = 81 grams/mol x 2.5 mol
grams = 202.5 grams
So, grams of zinc oxide is 202.5 gr.
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What are the types of natural selection in biology?
The types of natural selection in biology are: Stabilizing selection, Directional selection, Disruptive selection, and Sexual selection.
Natural selection is the process by which certain traits become more or less common in a population over time, based on how well those traits enable the individuals who possess them to survive and reproduce.
1. Stabilizing selection: This occurs when traits that fall within a certain range are favored, while those that deviate from that range are selected against. This leads to the stabilization of a trait within a population.
2. Directional selection: This occurs when a certain trait becomes more or less favorable, causing the population to shift in that direction. This leads to a change in the average value of a trait within a population.
3. Disruptive selection: This occurs when traits at both extremes of a range are favored over those in the middle. This can lead to the splitting of a population into two distinct subpopulations, each with their own favored trait.
4. Sexual selection: This occurs when certain traits are favored because they increase an individual's ability to attract a mate. This type of selection can lead to the evolution of exaggerated or flashy traits, like the colorful plumage of a peacock.
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Dry skin is usually characterized as:
a) soft
b) prone to acne
c) smooth to the touch
d) not being prone to acne
What are the basic stages of the Calvin cycle 3 What are the reactants and products of photosynthesis?
The basic stages of the Calvin cycle are:
Carbon fixation- In this stage, CO2 is converted into organic molecules such as glucose and other sugars.Reduction- In this stage, ATP and NADPH are used to reduce the organic molecules created in the first stage.Regeneration- In this stage, the enzymes RuBisCO and phosphoglycerate kinase regenerate the 3-carbon molecules that can be used in the cycle again.The reactants of photosynthesis are carbon dioxide and water, and the products are oxygen and glucose.
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Formerly classified under algae, are a group of organisms that biologists now place under kingdom. Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called.
Formerly classified under algae, Protista are a group of organisms that biologists now place under kingdom Plantae. Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called autotrophs/producers.
Kingdom Protista is a kingdom consisting of very simple eukaryotic organisms. Its members have similar characteristics but are not animals, plants, or fungi. So it needs to be grouped into a separate kingdom.
Protists are eukaryotic organisms because their nucleus is protected by a nuclear membrane. Members of protists are unicellular, and some are multicellular.
The group of plant-like protists consists of both single-celled and multi-celled eukaryotic organisms, whose cells share the same characteristics. Because of their ability to carry out photosynthesis, most of the protists of this group are phytoplankton. So, what biologists now place under the kingdom Plantae.
The type of question is fill-in-the-blank.
Formerly classified under algae, are a group of organisms that biologists now place under kingdom . Many species of this group perform the important role of making an essential nutrient available to other organisms and are therefore called .
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Researchers now believe that most elderly people a. Have average intellectual abilities. B. Have superior intellectual abilities. C. Lose their intellectual abilities. D. Retain their intellectual abilities throughout life. Please select the best answer from the choices provided a b c d.
Researchers now believe that most elderly people retain their intellectual abilities throughout life.
The correct answer D.
Declining mental abilities are part of the aging process of an organism in general, most studies show that after reaching a peak between the ages of 45-55 years, most of a person's abilities continuously decline, this also applies to an elderly person.
While aging reveals diminishing intellectual decline, the decline also tends to affect certain memory limitations.
The intellectual decline of the elderly is generally something that cannot be avoided, caused by various factors, such as illness, anxiety, or depression. But the intellectual abilities of the elderly can be maintained. One of the factors to be able to maintain this condition is to provide an environment that can stimulate or train their intellectual skills and can anticipate the occurrence of senility.
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If a father i dominant for brown hair and the mother i dominant for brown hair, what would be the hair color of the offpring?
In a blonde-brunette matching, there is an opportunity for a blonde youngster, however, the chances are more for a brunette kid.
In a brunette matching, your posterity will probably have a shade of brown. In a dark brunette matching, the youngster will probably have dark hair but could wind up with a shade of brown.
Hair variety comes from the two guardians through the chromosomes that went to their youngsters. The 46 chromosomes (23 from each parent) have qualities comprised of DNA with guidelines of what characteristics a youngster will acquire.
Like every single actual characteristic, your child's hair tone is as not entirely set in stone and coded in its DNA. Be that as it may, it will require an investment to completely form into the specific shade it will be.
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Which of the following processes occurring during meiosis helps to produce and maintain genetic variation in natural populations? Choose the best answer.DNA replicationcrossing overfertilizationlinkage
Crossing over is the mechanism that occurs during meiosis in order to produce and maintain genetic variation in natural populations.
Crossing over is the event that takes place in the pachytene stage of the Prophase I of meiotic cell division. It is the process where the exchange of the genetic material takes place between the two non-sister chromatids of the homologous chromosomes.
Meiosis is the type of cell division that results in the formation of daughter cells from one single parent cell. The number of chromosomes are halved in the daughter cells and therefore it is named as the reductional division. Meiosis can be accomplishes in two parts: meiosis I and meiosis II.
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No previous studies of the effects of roads on birds had been performed in Australia, and so this got us thinking, "maybe our birds are different from those in the other
studies."
1. Collect Evidence
2. Hypothesis
3. Observation
4. Question
"Maybe our birds are different from those in the other studies."
1. Collect Evidence: We gathered existing data on the effects of roads on birds from other studies around the world, studied how Australian birds live and interact with roads, and observed birds in areas near roads.
2. Hypothesis: We hypothesized that roads have a different effect on Australian birds than those from other studies.
3. Observation: We observed the behavior of birds in areas near roads, noting their behavior and responses to traffic.
4. Question: Does the effect of roads on birds vary depending on the species, or is it consistent across different species?
What are Birds?
Birds are a group of warm-blooded vertebrates characterized by feathers, a beak, and the ability to fly. They are found in all parts of the world and come in a variety of shapes and sizes. Birds are a very diverse group of animals, with over 10,000 different species worldwide.
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fragments of copied dna created on the lagging strand.T/F
Fragments of copied DNA created on the lagging strand are true. Because on the lagging strand short DNA fragments are formed.
Lagging stands are slow stands where that are used to extend DNA strands or to grow Okazaki fragments. Lagging stands are synthesized discontinuously by DNA polymerase.
Okazaki fragments are short DNA fragments (sections) in the DNA replication process in the slow DNA strands.
Meanwhile, the leading strand is the guard strand of DNA which is synthesized in the 5`-3` direction continuously and very quickly.
The lagging strand starts replication opposite to the replication process that occurs in the leading strand, namely from 3' to 5'. This process begins with the steps of the primase enzyme which forms a new part called the RNA primer. This process takes place continuously but in the primary formation, it is broken into certain parts.
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A product containing antiseptic reaches what level of decontamination?
A product containing antiseptic reaches the sanitation level of decontamination.
Decontamination is a combination of processes to remove or destroy contamination so that infectious agents and other contaminants cannot reach vulnerable areas in sufficient quantities to cause infection or other adverse reactions.
The stages of decontamination are sterilization, disinfection, sanitation.
Sanitation: Also called sanitizing. A chemical process that reduces the number of pathogenic bacteria on cleaned surfaces to harmless levels
1. Remove impurities.
2. For safety by removing toxic or harmful substances, such as hazardous chemicals or radioactive substances.
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which valve connects the small intestine to the large intestine?
Answer:
The ileocecal valve
Explanation:
The ileocecal valve is a sphincter muscle situated at the junction of the ileum (last portion of your small intestine) and the colon (first portion of your large intestine). Its function is to allow digested food materials to pass from the small intestine into your large intestine.
(Paraphrase that if it's looking for a definition)
How many atoms are in a mole of oxygen atoms?
The number of atoms in one mole of oxygen atoms is 1 mole of oxygen gas contains 6.02 × 1023 molecules of O2
One mole represents the amount of substance of a system that contains a number of elementary quantities (atoms, molecules and ions) equal to the number of atoms present in exactly 12 grams of the isotope Carbon 12.
To calculate the number of atoms, use the formula Avogadro's constant = 6.02 × 1023 particles. This means that one mole of any substance will have the same number of particles, which is equal to 6.02 × 1023 particles. Then the number of atoms in one mole of oxygen atoms is 1 mole of oxygen gas contains 6.02 × 1023 molecules of O2.
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What are some of the arguments that DID is not a genuine disorder?
I’m working on a Psychology paper and I couldn’t find anything in the textbook about an argument and I’m really stressed
A DID debate stems from the argument a first claims of dissociation using existing diagnostic levels are invalid because scales were constructed poorly. The ways the scale are made causes more false positives.
How do diagnostic tests work?A procedure used to identify a person's ailment or condition based on their indications and symptoms. Diagnostics can also be used to generate a prognosis, plan a treatment regimen, and assess how well that course of treatment is working.
What does a diagnostic test intend to do?Clinicians ought to be aware about certain factors about the tests they utilize since the primary goal of just about any medical method is to assist in determining how a patient has had and is not suffering from a specific condition1,2.
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How has streaming changed how a consumer can access music?
Streaming has significantly changed how consumers can access music. Prior to the advent of streaming, consumers mainly accessed music through purchasing physical copies of albums or through purchasing digital downloads. With streaming, consumers can now access a vast library of music through subscription-based streaming services such as Sp0tify, 4pple Music, and T1dal, or through ad-supported platforms like Y0uTube and S0undcloud.
Streaming has made it much easier for consumers to discover new music, as well as listen to a wide variety of music from different genres, eras and cultures, as the services usually have an extensive library with a wide range of songs and artists. They also provide personalized recommendations and playlists, making it easy for listeners to find new music that aligns with their preferences.
Streaming has also brought about a shift in the way music is consumed, with more and more people opting for on-demand streaming rather than owning music. This has led to changes in the music industry, with streaming services now playing a major role in how music is produced, marketed and monetized.
Additionally, streaming services also offer features like offline listening, where users can download songs or playlists to listen to them offline, and live streaming which allows users to attend live shows and concerts virtually.
Overall, streaming has greatly expanded the ways in which consumers can access music and has had a major impact on the music industry as a whole.
what factors influence range of motion of a joint?
Answer:
Flexion - the bending of a joint. It decreases the angle between two body parts. ...
Extension - the extending of a joint. ...
Abduction - movement away from the midline of the body. ...
Adduction - the movement of a limb or other part toward the midline of the body or toward another part.
Explanation:ong
Which is the purpose of artist in social realism?
Social Realism is the practice of using art—primarily visual art—to highlight political and social issues. Social Realism takes a critical look at the poverty, injustice, and corruption within a society.
About social realismSocialist realism was born for the first time in the Soviet Union (now Russia) as the application of socialism in the field of literary creation. Literature that uses this method is aimed at winning socialism and more importantly is with a political attitude that is firm, militant, obvious, there is no need to be shy or stealthy, according to the name it uses.
The term was first used in 1905 in the Soviet Union. Socialist realism appears in an anonymous article, entitled "Notes on Philistinism". After the appearance of this article—which was distributed against the government regarding the events of “Bloody Sunday” on January 22, 1905—the writer Maxim Gorky was arrested, but released shortly thereafter due to international protests over his arrest.
The study of socialist realism describes the conflict between the proletariat and the bourgeoisie. According to its figures, socialist realism is an integral part of the unified machine of human struggle in destroying the oppression and exploitation of the working people, namely workers and peasants, in dispelling imperialism (colonialism) and colonialism (groups), in order to improve the condition and situation of the working people throughout the world. world.
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What was Charles Darwin's contribution to the theory of evolution Brainly?
Charles Darwin proposed that creatures that are more suited to their environment will tend to live, reproduce, and proliferate.
Darwin's greatest contribution to science was to finish the Copernican Revolution by defining nature for biology as a system of matter in motion guided by natural laws. The genesis and adaptations of organisms were brought into the realm of science with Darwin's discovery of natural selection.
The Natural Selection Theory Charles Darwin, a 19th-century biologist, investigated the principle of natural selection. Natural selection shows how a species' genetic features may evolve over time. This may result in speciation, or the emergence of a separate new species.
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Thunderstorms are more common in some areas than in others. The map below shows the average number of thunderstorms per year in different parts of the United States. Why are there significantly more thunderstorms in Florida then there are in California?
Question 5 options:
The state of Florida is smaller than the state of California.
The air in Florida is more stable than the air in California.
The air above Florida holds less moisture than the air above California.
The ocean currents near Florida are warmer that the ocean currents near California.
Answer:
D
Explanation:
Answer:
D
Explanation:
I did the test for k12
What climate factors can scientists change in a climate model?
Answer:
In a climate model, a scientist can change the temperature of the oceans safely inside a computer. The model then figures how lots of other things would change because of the warming
1. The axial skeleton includes what bones?
2.The arms and legs are categorized as what part of the skeleton?
3. The bone forming cells are termed what?
Axial skeleton consists of the bones in your skull, ossicles in middle ear, hyoid bone of neck, vertebra (bones of spine) and thoracic cage.
In general , all 80 bones of the axial skeleton together helps to form the vertical axis inside the body. They also consists of the bones in the region of head, vertebral column, ribs and sternum. On the other hand the appendicular skeleton generally consists of 126 bones each comprises of free appendages that are attachments to the axial skeleton.
Hence , we can say that Axial skeleton combinedly consists of bones in your skull region, ears, neck, back and ribcage (sternum and ribs). skull in majority is made up of 22 bones and plenty of cartilage and ligaments. All the bone in the skull are joined together except for the mandible bone .
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A large population of rock pocket mice with variou fur color live in a deignated area. Several generation after a volcanic eruption, the frequency of the different color within the population ha changed. What color of rock pocket mice would be mot prevalent in the population and why?
The color of rock pocket mice that would be most prevalent in the population is sandy-colored fur. Because it is consistent with the light color of the desert rocks аnd sаnd on which they live.
Most rock pocket mouse populаtions hаve sаndy-colored fur, which is consistent with the light color of the desert rocks аnd sаnd on which they live. On the other hаnd, dаrk-colored rock pocket mouse populаtions hаve been found living on blаck, bаsаltic rock formаtions cаused by geologic lаvа flows.
The dаrk-colored mouse hаs а selective аdvаntаge if it is living in а dаrk-colored hаbitаt such аs the Pinаcаte lаvа flow. Since rock pocket mice reproduce quickly аnd often, the frequency of this fаvored trаit would quickly аccumulаte in the populаtion. Аny light-colored mice in the dаrk-colored hаbitаt would hаve а selective disаdvаntаge, аs it would most likely be preyed upon by visuаl predаtors. This would decreаse the frequency of its genes. Likewise, the light-colored mouse hаs а selective аdvаntаge if it is living in а light-colored hаbitаt, аnd the dаrk-colored mice in thаt sаme light-colored hаbitаt would hаve а selective disаdvаntаge, therefore decreаsing the frequency of their genes.
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One characteristic of all living things is heredity.
Which of the following best describes heredity as it relates to biology?
Question 3 options:
A.The passing of biotic and abiotic resources from parent to offspring
B.The passing of energy and nutrients from parent to offspring
C.The passing of material possessions from parent to offspring
D.The passing of genes and genetic traits from parent to offspring
Answer:
D. The passing of genes and genetic traits from parent to offspring
Explanation:
Short term of. “ heredity “ :
the passing on of traits from parents to their offspring
/\ Supports my answer.
What is the probability of getting a white four o’clock plant if the parents are pink and white? (give phenotype %’s)
Probability of getting a white four o’clock plant if the parents are pink and white the chances is 50%.
What is the phenotype of four o'clock flower?
White (r) flowers are not completely dominant over red (R) blossoms in Four o'clock plants. A BLENDED INTERMEDIATE phenotype of PINK flowers is displayed on heterozygous plants.
The dominant phenotype, the intermediate heterozygous phenotype, and the recessive phenotype are the three types.
First evidence of incomplete dominance was found in the four o'clock plant. The allele in charge of the color red does not totally outweigh the allele in charge of the color white. The dominant and recessive phenotypes are "mix" to create the new phenotype pink.
Height, biomass, leaf shape, and other observable traits of a plant are referred to as its phenotype. When referring to the collective expression of the genotype in combination with the environment on an individual, we use the term "phenotype" in a more specific sense.
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Claire has a beaker of 0.5 mol/dm3 sulfuric acid and a beaker of 0.5 mol/dm3 ethanoic acid. Which acid has the lower pH?
A beaker of 0.5 mol/dm3 sulfuric acid has a lower pH. Due to this, the electrical conductivity of sulfuric acid is found to be higher as compared to ethanoic acid.
What types of ions will be reduced during electrolysis?The positive ions will be reduced at the cathode, as they gain electrons. The negative ions will be oxidized at the anode, as they lose electrons.
It is known to all that a strongly acid solution will have high conductivity. Since the pH is a measure of the concentration of hydrogen ions. and the hydroxyl ions. As a result of this, the lower the pH, the greater the conductivity will be.
Therefore, a beaker of 0.5 mol/dm3 sulfuric acid has a lower pH. Due to this, the electrical conductivity of sulfuric acid is found to be higher as compared to ethanoic acid.
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Answer:sulfuric acid"
Explanation:
How many moles of oxygen are in 2 moles of H2O?
One oxygen molecule combines with a hydrogen molecule to form 2 moles of water. So, the number of oxygen molecules in 2 mol H₂O is 1 mol.
A mole is a unit of account for chemistry. The unit of account is used to facilitate the calculation of an object. Units of account commonly used in everyday life, for example, 1 dozen equals 12 pieces, 1 gross contains 12 dozen, 1 ream equals 500 sheets of paper, 1 score equals 20 sheets of cloth, and so on.
One mole of any substance will have the same number of particles, which is equal to 6.02 × 10²³ particles." For example, 1 mole of water contains 6.02 × 10²³ molecules of H2O. 1 mole of oxygen gas contains 6.02 × 10²³ molecules of O.
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Explain what cell part muscle cells need more of than fat cells.
Answer:
Muscle cells require a significant amount of energy to function properly. Muscle cells have more mitochondria, which produce more ATP by utilizing power from the nutrition we consume. Fat cells, just from the other hand, use less energy to function.
oh my god how do I delete questions
Answer: don't mark this answer as anything not even like it but put in the comments what you mean by how do you delete questions are you talking about on brainly because if you are i could report it and have someone take it off but if it is on your assignment i don't know depends on the school but well yeah so just write oh and im on a time limit which is why i have sloppy writing right now but if i wasn't you know i would be better.
Explanation:
Answer:
Explanation:I don’t know either girl
Compare and contrast changes in the Pacific Ocean caused by El Niño and La Niña.
Do you think El Niño or La Niña creates more favorable weather changes in the United States? Defend your answer.
El Niño and La Niña are opposite phases of the El Niño-Southern Oscillation (ENSO) cycle, which is a fluctuation in sea surface temperature in the Pacific Ocean.
What is El Nino and La Nina?El Niño results in warmer than normal sea surface temperatures in the central and eastern Pacific Ocean, which can lead to changes in atmospheric circulation patterns and increased rainfall in some regions, such as South America and Australia, and decreased rainfall in others, such as the western United States and southeast Asia.
La Niña, on the other hand, results in cooler than normal sea surface temperatures in the central and eastern Pacific Ocean and can result in changes in atmospheric circulation patterns leading to increased rainfall in some regions, such as the western United States and Indonesia, and decreased rainfall in others, such as Australia and southern South America.
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10. How does lactic acid fermentation affect our body?
Answer:
Your muscle cells can produce lactic acid to give you energy during difficult physical activities. This usually happens when there is not enough oxygen in the body, so lactic acid fermentation provides a way to get ATP without it.