19) How many liters of CO2 are formed during the combustion of 120.0 grams of (C2H6 ) ethane at STP in the open atmosphere
Answers
To determine the amount of CO2 formed during the combustion of ethane (C2H6), we need to use stoichiometry and the balanced chemical equation for the combustion reaction.
From the equation, we can see that for every 1 mole of ethane combusted, 2 moles of CO2 are produced. First, we need to convert the given mass of ethane (120.0 grams) to moles. The molar mass of ethane is 30.07 g/mol, so:120.0 g / 30.07 g/mol = 3.988 moles of ethaneSince the molar ratio between ethane and CO2 is 1:2, the number of moles of CO2 produced will be:3.988 moles × 2 moles CO2 / 1 mole ethane = 7.976 moles of CO2Finally, we can convert moles of CO2 to liters at STP (standard temperature and pressure). At STP, 1 mole of any gas occupies 22.4 liters.
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Related Questions
describe some home or business technologies that use spectrometric equipment to analyze the atmosphere or temperature.
Answers
Some home/business technologies that use spectrometric equipment are ;
Home security systems like fire alarms and Air conditioning systemThe fire alarms and air conditioners found in our homes are triggered when the temperature of the atmosphere changes from been too cold to been too hot or vice versa.
Home technologies that respond to changes in the environment or atmosphere are equipped with some level of communication technology which enables them to respond to changes in the environment via automation. The communication technology found in these home appliances makes use of spectrometric equipment ( measures changes of light wavelength across the electromagnetic spectrum )
Hence we can conclude that Some home/business technologies that use spectrometric equipment are ; Home security systems like fire alarms and Air conditioning system
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Cells that act as gatekeepers that permit materials to pass to the neurons of the brain from the capillaries are called.
Answers
Answer:
OLM alpha 2 cells would be the answer.
Cells that act as gatekeepers that permit materials to pass to the neurons of the brain from the capillaries are called astrocytes.
What are astrocytes?Astrocytes are specialized glial cells that exceeds the number neurons by a factor of more than five.
They tile the entire central nervous system and perform a variety of essential complex functions in a healthy central nervous system.
Astrocytes not only control blood flow, but they also transport mitochondria to neurons and provide the building blocks for neurotransmitters, which fuel neuronal metabolism.
Furthermore, astrocytes have the ability to phagocytoze synapses, alter neurotrophin secretion, and clear debris.
Astrocytes can produce a strong antioxidant response to protect themselves and neurons by releasing glutathione precursors to neurons.
Because of their role in scar formation, astrocytes can regulate and contain immune responses, thereby controlling neuroinflammation.
Thus, the answer is astrocytes.
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In many eukaryotic cells, DNA stored in the nucleus is transcribed into messenger RNA. The mRNA is then transported into the cytoplasm where ribosomes assist in their translation into proteins. Finally, these proteins are packaged and sorted in the Golgi apparatus for use in other parts of the cell or in preparation for secretion into other cells. Which of the following statements is supported by this description?
a. Various organelles within a cell interact with each other to carry out life processes.
b. Organelles within a cell act independently of each other at all times.
c. Some organelles are more important than other organelles within a cell.
d. Only up to three organelles may interact with each other at any given moment in time.
Answers
Answer:
the answer is "a"....that is various organelles within a cell interact with each other to carry out life processes .
Exponential growth curve
Time
Logistic growth curve
Population
Carrying capacity
1. A.
2. B.
3. C.
4. D.
5. E.
Answers
Exponential growth curve: A
Logistic growth curve: C
Population: D
Carrying capacity: E
Time: B
Exponential growth curve is a mathematical representation of the growth of a population that is experiencing unlimited resources and unrestricted growth. It is characterized by a continuously increasing growth rate, resulting in a J-shaped curve when plotted over time.
In an exponential growth curve, the population increases at an accelerating rate, with the number of individuals added per unit time proportional to the current population size. The curve can be described by an exponential function of the form Nt = N0 * e^(rt), where Nt is the population size at time t, N0 is the initial population size, r is the growth rate, and e is the base of the natural logarithm.
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which of the following is not an abnormal component of urine? A. white blood cells C. albumin D. glucose E. urea
Answers
why do some viruses mutate faster than others quizlet
Answers
Some viruses mutate faster than others due to their genetic makeup and the mechanisms by which they replicate.
RNA viruses, in particular, tend to mutate more rapidly than DNA viruses because RNA replication is more prone to errors. RNA viruses lack the ability to correct replication errors, which can result in mutations that alter the virus's genetic makeup.
Additionally, RNA viruses have high mutation rates due to the lack of proofreading activity by RNA polymerase enzymes during replication.
Some viruses also have high mutation rates due to the fact that they exist as a population of viruses, rather than a single virus particle. This means that there is more genetic diversity within the virus population, which increases the likelihood of new mutations arising. Other factors that can contribute to high mutation rates include selective pressure, immune system responses, and interactions with other viruses or host organisms.
Overall, the rate of mutation in viruses is influenced by a variety of factors, including the type of virus, its genetic makeup, replication mechanisms, and environmental factors. Understanding how viruses mutate is important for developing effective treatments and vaccines, as well as for predicting and responding to outbreaks.
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What happens in a young tuna’s life cycle?
Answers
Answer:
He is born he eats some he gains weight he realizes he may have an eating disorder he becomes depressed he becomes very obese and overweight he has very high cholesterol and type 2 diabetes he finally is struck with a major heart attack that kills him in front of his loyal wife of 40 years.
Explanation:
PLEASE HELP I WILL GIVE THE REST OF MY POINTS FOR THiS!!!
1.What is the correct, balanced formula for photosynthesis? Write " --> " to indicate the arrow. Add a space between each symbol. Example: XXX + YYY --> AAA + BBBImmersive Reader
(5 Points)
Enter your answer
2.What powers photosynthesis?
(2 Points)
Water
Carbon Dioxide
ATP
Photons
Answers
4. (a) Can a cell wall be seen in frog blood cells?
Explain.
(b) Are blood cells from a producer or consumer?
5. (a) What cell part name is used to describe the outer edge of a frog blood cell?
(b) What cell part name is used to describe the dark center of a frog blood cell?
Answers
Answer:
(4a) yes
Explanation:
because without cell wall it blood can not
circulate well
During translation, which molecule bears the codon? -the anticodon? the peptidyl transferase? the A site? What is the difference between the A site and P site?
Answers
During translation, the molecule that bears the codon is mRNA (messenger RNA), while the molecule bearing the anticodon is tRNA (transfer RNA). Peptidyl transferase is an enzyme that plays a crucial role in forming peptide bonds between amino acids during protein synthesis. The main difference between the A and P sites is their function during translation.
The A site (aminoacyl-tRNA site) and the P site (peptidyl-tRNA site) are two adjacent sites in the ribosome, which is the molecular machine that carries out translation.
The A site is where the incoming aminoacyl-tRNA, carrying the next amino acid to be added to the growing polypeptide chain, binds to the ribosome. The anticodon of the tRNA base pairs with the codon on the mRNA, ensuring that the correct amino acid is added to the chain. Once the tRNA is in the A site, the peptidyl transferase catalyzes the formation of a peptide bond between the amino acid in the A site and the polypeptide chain in the P site.
The P site holds the tRNA carrying the growing polypeptide chain. After the peptide bond formation, the tRNA in the P site, now without its amino acid, is transferred to the E site (exit site) and released from the ribosome. The ribosome then moves along the mRNA, shifting the tRNA with the polypeptide chain from the A site to the P site, making room for the next aminoacyl-tRNA to enter the A site.
In summary, the A site is where the new aminoacyl-tRNA binds, while the P site holds the tRNA with the growing polypeptide chain during translation.
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What is the main product of the light-dependent reactions of photosynthesis?
Answers
Answer:
ATP and NADPH.
Explanation:
The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH.
How can the variables light,water,and plant change
Answers
large blooms of algae on the surface of a lake keep which abiotic factor from reaching the bottom?
Answers
Answer:
water that flows over the ground and can carry pollution to water. Algal blooms choke out other plants and decrease the amount of oxygen available for living organisms.
Explanation:
Give a chemical equation for a buffer reaction in human blood, describe what the equation is showing:
Answers
Answer:
Human blood contains a buffer of carbonic acid (H2CO3) and bicarbonate anion (HCO3-) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid.
how can microscopes help you see cells? first, think of a. good place to collect a sample of cells
Answers
Microscopes helps to see cells by magnifying the sample using the different magnification strength of lens.
Microscopes- A laboratory tool called a microscope is used to look at items that are too tiny to be seen with the human eye. The study of tiny objects and structures under a microscope is known as microscopy. The microscope has 4 objective lenses: Scanning (4x), Low (10x), High (40x), and Oil Immersion (100x).
Cell- The analysis of structure and function of cells is known as cell biology, and it is based on the idea that a cell is the basic building block of all life. A thorough grasp of an organisms and tissues that cells make up is made possible by concentrating on the cell.
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aminoacyl-trna synthetase is an enzyme whose function is to _____.
Answers
Answer:plays a critical role in protein synthesis,
Explanation:
Aminoacyl-tRNA synthetase is an enzyme whose function is to attach the appropriate amino acid to its corresponding transfer RNA (tRNA) molecule, creating an aminoacyl-tRNA complex that will be used in protein synthesis.
What is Aminoacylation?Aminoacylation, also known as tRNA charging, is a biochemical process in which an amino acid is attached to its corresponding transfer RNA (tRNA) molecule. This process is catalyzed by the enzyme aminoacyl-tRNA synthetase, which recognizes the specific amino acid and the corresponding tRNA molecule that carries the anticodon sequence for that amino acid.
Aminoacylation is a crucial step in the process of protein synthesis, as the charged tRNA molecule brings the amino acid to the ribosome during translation, allowing the amino acid to be incorporated into the growing polypeptide chain.
The accuracy and efficiency of aminoacylation are critical for ensuring that proteins are correctly synthesized, as errors in aminoacylation can lead to the misincorporation of amino acids and the synthesis of non-functional or improperly folded proteins.
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Cellular respiration produces (1 point)
O glucose and oxygen.
O carbon dioxide and glucose.
O glucose and water.
O carbon dioxide and water.
Answers
Explanation:
♦ carbon di oxide and water
carbon dioxide and water
Describe the similarities and differences between the chromosomes of a male and a female human. (3 marks)
Answers
The chromosomes of a male and a female human share many similarities, but they also have some distinct differences. Both males and females have 23 pairs of chromosomes, for a total of 46 chromosomes. Among these pairs, 22 pairs are autosomes, which are the same in males and females, and one pair is the sex chromosomes, which determine the individual's sex.
The key difference lies in the sex chromosomes. Males have one X chromosome and one Y chromosome, denoted as XY, while females have two X chromosomes, denoted as XX. The presence of the Y chromosome in males determines their male characteristics and development. The X chromosome is responsible for many traits unrelated to sex determination and is present in both males and females.
In terms of size and structure, the autosomes are similar between males and females. They carry the majority of the genetic information and govern various aspects of an individual's traits and characteristics. The sex chromosomes, however, exhibit some structural differences due to the presence of the Y chromosome in males.
Overall, while the majority of the chromosomes are shared between males and females, the presence of the Y chromosome in males and the absence of it in females result in the primary distinction between the sexes in terms of chromosomal composition.
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Drag each tile to the correct box. COOL PICS
Arrange the organisms from fastest to slowest based on the time they’d take to complete the 20th Carnegie stage.
mouse
baboon
chicken
human
sheep
Answers
Answer:
Fastest- chicken
mouse
sheep
baboon
Slowest-human
Explanation:
Answer:
Fastest- chicken
mouse
sheep
baboon
Slowest-human
Explanation:
Which describes an interaction within the musculoskeletal system?
a
When a muscle contracts, a bone will move.
b
When a bone contracts, a muscle will move.
c
When a tendon contracts, a ligament will move.
d
When a ligament contracts, a tendon will move.
Answers
This describes an interaction within the musculoskeletal system. Muscles are connected to bones by tendons, and when a muscle contracts, it pulls on the tendon, which in turn pulls on the bone, causing it to move. This is how our body moves and performs actions such as walking, running, jumping, and lifting. The musculoskeletal system includes bones, muscles, tendons, ligaments, and joints, and they all work together to provide support, movement, and protection to the body.
why is photosynthesis described as a chemical rection
Answers
Answer:
Even though it can be undone, a new product is formed in photosynthesis. So it's a chemical process
how it is possible that all of your cells can contain the same DNA but perform different functions?
Answers
Answer:
all of the cells in our bodies are formed from a single fertilized egg
Explanation:
Also all cells of the body have the same DNA but different functions. Why? This is because all of the cells in our bodies are formed from a single fertilized egg that forms the diploid zygote (2n) after the fusion of one haploid sperm cell (n) with one haploid egg cell (n).
hy is dna synthesis expected to be more complex in eukaryotes than in bacteria? check all that apply. why is dna synthesis expected to be more complex in eukaryotes than in bacteria?check all that apply. eukaryotic cells contain much more dna. dna synthesis in eukaryotic cells consumes relatively large amounts of atp. there is a high occurrence of regions with unusual dna structure in eukaryotic chromosomes. dna replication in eukaryotes is known to proceed with much more fidelity than in bacteria. eukaryotic chromosomes are linear rather than circular. in eukaryotic cells, dna is complexed with histones.
Answers
DNA synthesis in eukaryotes is more complex due to larger genome size, higher energy consumption, unusual DNA structures, greater fidelity, linear chromosomes, and the presence of histones.
DNA synthesis is expected to be more complex in eukaryotes than in bacteria for several reasons:
1. Eukaryotic cells contain much more DNA: Eukaryotes have larger genomes and more chromosomes, which increases the complexity of DNA replication.
2. DNA synthesis in eukaryotic cells consumes relatively large amounts of ATP: The energy requirement for replication is higher in eukaryotes due to the larger amount of DNA and more complex machinery involved.
3. There is a high occurrence of regions with unusual DNA structure in eukaryotic chromosomes: These regions, such as repetitive sequences and tightly coiled regions, can cause difficulties during replication and require specialized proteins for accurate synthesis.
4. DNA replication in eukaryotes is known to proceed with much more fidelity than in bacteria: Eukaryotes have more advanced error-checking and repair mechanisms, ensuring accurate replication and minimizing mutations.
5. Eukaryotic chromosomes are linear rather than circular: Linear chromosomes require multiple origins of replication and the resolution of complex structures at the ends of chromosomes (telomeres), adding more complexity to the replication process.
6. In eukaryotic cells, DNA is complexed with histones: Histones are proteins that help package and organize DNA into structures called nucleosomes. This adds an extra layer of complexity as replication machinery must contend with histones and nucleosome organization during DNA synthesis.
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What is a molecule????
Answers
Answer:
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
HELP When dissolved in water, BLANK
produce solutions of ions.
1.ions
2. electrolytes
3. nonpolar compounds
4. nonelectrolytes
Answers
Answer: what are the choices
Explanation: hi
When dissolved in water, electrolytes produce solutions of ions. The correct option is 2.
What are electrolytes?When electrolytes are dissolved in water or other solvents, they produce ion solutions that conduct electricity.
These ions, which can be positively or negatively charged (cations or anions), form when the electrolyte dissociates into its constituent atoms or molecules in the presence of a solvent.
Electrolytes include ions such as sodium, potassium, calcium, magnesium, chloride, bicarbonate, and phosphate.
These electrolytes are important in many physiological processes in the body, including fluid balance, nerve impulse transmission, and muscle function.
Food and drink, supplements, and intravenous fluids are all sources of electrolytes.
Thus, the correct option is 2.
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Explain why physical appearance or morphology is not always useful for identifying organisms belonging to the same species
Answers
Jlkksss
Compare and contrast a series and parallel circuit. Give at least one way that they are alike and one way they are different.
This is physical science btw
Answers
When we talk about series circuit, the current that flows is same through all the components present in it. but in parallel circuits, the components are placed in parallel with each other due to which the circuit splits the current flow.
A parallel circuit has branches in order that current divides and single part of it flows through any branch. Total amount of current that flow in parallel circuit is sum of each branches.
A series circuits is a circuit that has single path through which current passes . A series circuit is one where resistors are connected up, and the current passes through each resistor .
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Which of these Is NOT a type of habitat?
A) a desert
B) a mountain
C) a rainforest
D) the world
Answers
Answer:
D
Explanation:
Its kinda hard to explain but the world is more like a planet(?) and not a type of habitat since anything can live on it
Answer:
D- the world
Explanation:
what might be a symptom of a person whose vein valves are not functioning properly and causing fluid to flow away from the heart?
Answers
Answer:I can I get brain ly ess
Explanation:
Valvular regurgitation may be also called “leaky valve.” It occurs when any of the heart valves doesn't close properly, causing blood to flow backward. The symptoms can include: shortness of breath. a cough.
How many protons,electrons and neutrons are in a neutral atom with an atomic number of 35 and an atomic mass number of 81 contains?
Answers
Answer: the number of protons is 35 because the number of protons is equal to the atomic number which is equal to the number of electrons hence no need to waste your time on that.
Neutrons is the atomic mass - protons
81-35=46.
From my above explanation the number of electrons is equal to 35.
Explanation: