Biodiesel has decreased emission of atmospheric carbon than fossil fuels due to the presence of oxygen molecules.
Biofuels have lower carbon emissions than burning fossil fuels because oxygen molecules are present in them and help in complete combustion. Carbon in biodiesel is recently present in the atmosphere while carbon in fossil fuels are formed by action of many geological forces on deep layers of earth over many thousands of years so the carbon is preserved and lack the presence of oxygen.
Fossil Fuels are Hydrocarbons which release Carbon Dioxide on burning. The Carbon recently present in atmosphere is extracted in Biofuels so this cause no net Change in Carbon levels in atmosphere.
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The structural formula of magnesium chloride is represented as ?
Ionic halides, like magnesium chloride, are essentially salts that are very soluble in water. Both anhydrous and numerous hydrated crystal forms of this chemical are available.
What is the chemical formula for magnesium chloride?Magnesium has a propensity to lose two electrons during in the reaction between it and chlorine. It has a +2 charge. To complete magnesium's octoate, however, chlorine atom atoms are required to capture two of its electrons.
How does magnesium chloride work?For students, the magnesium formula is essential. They ought to be educated and aware of it. One of the found naturally inorganic compounds, magnesium chloride has a wide range of uses in business and the medical profession. It is also a crucial mineral for people.
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Ionic halides, like magnesium chloride, are essentially salts that are very soluble in water. Both anhydrous and numerous hydrated crystal forms of this chemical are available.
What is the chemical formula for magnesium chloride?
Magnesium has a propensity to lose two electrons during in the reaction between it and chlorine. It has a +2 charge. To complete magnesium's octoate, however, chlorine atom atoms are required to capture two of its electrons.
How does magnesium chloride work?
For students, the magnesium formula is essential. They ought to be educated and aware of it. One of the found naturally inorganic compounds, magnesium chloride has a wide range of uses in business and the medical profession. It is also a crucial mineral for people.
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It takes 2 cups of water to cook 1 cup of rice. Clearcheck how much rice can you cook with 0. 5 cups of water? cups of rice how much water does it take to cook 6. 5 cups of rice? cups of water.
From the given ratio, it takes 2 cups of water to cook 1 cup of rice;
one can cook 0.25 cups of rice with 0.5 cups of waterit will require 13 cups of water to cook 6.5 cups of riceWhat are ratios?Mathematicians use the term "ratio" to compare two or more numbers. It serves as a comparison tool to show how big or tiny an amount is in relation to another.
Considering the given ratio in order to determine the cups of water required to cook any given cups of rice:
It takes 2 cups of water to cook 1 cup of rice
The ratio of cups of water to cups of rice is 2 : 1
The cups of rice that can you cook with 0. 5 cups of water is 0.5 * 1/2 = 0.25 cups of rice.
The cups of water that it will take to cook 6. 5 cups of rice is 6.5 * 2 = 13 cups of water.
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in order to move a negative charge farther away from a positive charge, then you need
In order to move a negative charge farther away from a positive charge, then you need to apply a force in the direction away from the positive charge.
Coulomb's law states that the force between two point charges is directly proportional to the magnitude of the charges and inversely proportional to the square of the distance between them. The force between charges of opposite sign is attractive, while the force between charges of the same sign is repulsive.
Therefore, to move a negative charge farther away from a positive charge, a force must be applied in the direction away from the positive charge. This is because the force of attraction between the two charges acts to pull the negative charge towards the positive charge, and this force must be overcome in order to move the negative charge away. The magnitude of the force required will depend on the magnitude of the charges and the distance between them.
In general, moving charges in electric and magnetic fields requires the application of forces, and the direction and magnitude of these forces can be predicted using Coulomb's law and other laws of electromagnetism. Understanding these forces is important in many areas of science and technology, including electronics, electrical engineering, and particle physics.
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the reaction below is at equilibrium. use lechatelier's principle to predict the effect of adding more hydrogen gas to the equilibrium reaction mixture n2(g) 3h2(g) <----> 2nh3(g)? a. The equilibrium position will remain unchanged.
b. The equilibrium position will shift to the right.
c. The equilibrium position will shift to the left.
d. The equilibrium constant will increase.
e. All of the nitrogen gas will be used up.
The option c. The equilibrium position will get shifted to the left, is the correct choice.
What is lechatelier's principle?Lechatelier's Principle is a principle in chemical thermodynamics that states that any stress applied to a system at equilibrium will cause the system to adjust in a way that minimizes the effect of the stress and re-establish equilibrium. This principle can be used to predict the effect of changes in concentration, temperature, pressure, or addition of a catalyst on a chemical reaction at equilibrium.
The reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is at equilibrium and can be analyzed using Le Chatelier's principle.
If we increase the temperature of the reaction mixture, the reaction will shift to the left to counteract the increase in temperature. If we decrease the pressure of the reaction mixture, the reaction will shift to the right to counteract the decrease in pressure. If we add more H2 to the reaction mixture, the reaction will shift to the right to counteract the increase in H2.If we add more N2 to the reaction mixture, the reaction will shift to the left to counteract the increase in N2.
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calculate the pH at which the side-chain amino group of lysine is 20% dissociated.
The pH at which the side-chain of amino group of the lysine is 20% dissociated is 11.3.
The percentage dissociation = 20 %
α = √ Ka/ c
Where,
Ka = dissociation constant
c = concentration
c =8.16 / 0.04
= 2.04 × 10² M
After the dissociation , we get :
[Lys⁺] = [OH⁻]
= cα
[Lys⁺] = ( 2.04 × 10²) (0.20)
= 4.08 × 10² M
The pH expression is as follows :
pH = - log [H⁺]
= - log (Kw / [OH⁻])
= - log (2.54 × 10¹¹)
= 11.3
Thus, the pH is 11.3 at side chain amino group of the lysine that is 20 % dissociated.
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2. a solute often takes on properties of the solvent. how was this exhibited in part 1?
The concept of a solute taking on properties of the solvent is referred to as solvation. When a solute is dissolved in a solvent, the solvent molecules surround and interact with the solute molecules. This interaction can alter the physical and chemical properties of the solute.
In part 1 of the experiment, this concept was exhibited when the solute was dissolved in the solvent and took on the properties of the solvent.
By examining the resulting solution, it was possible to observe the changes in the solute as it was influenced by the solvent. The physical appearance, as well as the chemical behavior, of the solute can change after being dissolved in the solvent.
The relationship between the solute and solvent is important in various fields including chemistry, biology, and pharmacology, as it helps to determine the solubility, stability, and reactivity of the solute in the solvent.
By understanding the properties of the solvent and how they impact the solute, researchers can optimize the conditions for various processes, including drug delivery and chemical reactions.
In conclusion, the concept of a solute taking on properties of the solvent was demonstrated in part 1 of the experiment. The solvation process, in which the solute is surrounded and interacts with the solvent, can greatly influence the physical and chemical properties of the solute.
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what does the bird use to protect there self?
The diffferent ways birds use to protect itself are:
Plumage CamouflageEgg CamouflageLiving Near “Protector” SpeciesNest Cover and ConcealmentFlight RetreatDistraction DisplaysDirect Confrontation.To know more about birds:
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How do you find the limiting reagent in a reaction example?
To find the limiting reagent in a reaction example, you must first identify the reactants and their respective molar amounts.
Then, you must calculate the moles of each reactant, and the moles of product that can be formed from the given amount of each reactant.
Finally, you must compare the moles of each reactant to the moles of the product that can be formed and determine which reactant is in the smallest amount. This reactant is the limiting reagent.
What is reaction?
In chemistry, a reaction is a process that involves the rearrangement of atoms to form new substances. Reactions are the building blocks of chemistry, and when chemical reactions occur, substances are broken apart and rearranged to form new substances with different chemical properties.
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identify the hybridization of valence orbitals of the carbon atom in compound x
The hybridization of the carbon atom's valence orbitals cannot be ascertained without knowing more about the chemical "x." In order to calculate the number of bonds and the molecular shape of the molecule,
To create a hybrid, two or more distinct species, breeds, or types of plants or animals must be crossed. This can be accomplished either by artificial crossbreeding in the wild or controlled breeding in agriculture. The child may exhibit qualities from both parents, resulting in a blend of traits that may be advantageous or enhanced in some way. Through the gradual accumulation of genetic alterations over time, hybridization can potentially result in the emergence of new species. The bonding configuration between atoms in a molecule, which defines its shape and reactivity, is referred to as hybridization in chemistry.
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what is the ph of a solution that has [h3o ] = 1.39 x 10-2 m?
The pH of the solution that the concentration of [H₃O⁺] 1.39 × 10⁻² M is the 1.85 .
The concentration of [H₃O⁺] = 1.39 × 10⁻² M
The pH expression is as follows :
pH = - log [H₃O⁺]
where, the concentration of [H₃O⁺] = 1.39 × 10⁻² M
By solving the values , we get :
pH = - log [H₃O⁺]
pH = - log ( 1.39 × 10⁻² )
pH = - log ( 1.39 ) + - log 10⁻²
pH = - 0.143 + 2
pH = 1.85
Thus, the pH of the solution is 1.85 with the concentration of [H₃O⁺] is 1.39 × 10⁻² M.
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The Pressure P Of A Sample Of Oxygen Gas That Is Compressed At A Constant Temperature Is Related To The Volume V Of Gas By A Reciprocal Function Of The Form P = K/V. (A) A Sample Of Oxygen Gas That Occupies 0.671 M³ Exerts A Pressure Of 39 KPa At A Temperature Of 293 K (Absolute Temperature Measured On The Kelvin Scale). Find The Value Of K In The
The pressure P of a sample of oxygen gas that is compressed at a constant temperature is related to the volume V of gas by a reciprocal function of the form P = k/V.
(a) A sample of oxygen gas that occupies 0.671 m³ exerts a pressure of 39 kPa at a temperature of 293 K (absolute temperature measured on the Kelvin scale). Find the value of k in the given model.
(b) If the sample expands to a volume of 0.916 m³, find the new pressure.
(a) To find the value of k in the given model, use the given values of P and V:
P = 39 kPa = 39 * 10^3 Pa
V = 0.671 m³ = 0.671 * 10^3 L
P = k/V
k = PV = 39 * 10^3 * 0.671 * 10^3 = 26,049,000
(b) To find the new pressure, use the value of k and the new volume:
V = 0.916 m³ = 0.916 * 10^3 L
P = k/V = 26,049,000 / (0.916 * 10^3) = 28,538.56 Pa = 28.54 kPa.
Pressure is a physical quantity that describes the force per unit area exerted by a substance, such as a gas, liquid, or solid, on a surface that is in contact with it. It is commonly expressed in units of pascals (Pa), atmospheres (atm), or kilopascals (kPa). Pressure is a crucial concept in many fields, including physics, engineering, and medicine, and plays a critical role in various processes, such as combustion, fluid flow, and thermodynamics.
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When 1-chlorobutane is treated with sodium hydroxide, two products are formed_ Identify the two products: (Select all that apply:) A. 1-butyne B. 1-butanal C. 1-butene D. 2-butanol E. 2-butene F. 1-butanol
When the 1-chlorobutane is treated with sodium hydroxide, two products are formed are the correct option is C. 1 - butene F. 1 - butanol.
When 1-chlorobutane is treated with sodium hydroxide, The reaction is as follows :
1) The substitution reaction take place :
Cl - CH₂ - CH₂ - CH₂ - CH₃ + NaOH ----> OH - CH₂ - CH₂ - CH₂ - CH₃
1-chlorobutane sodium hydroxide 1 - butanol
2) The elimination reaction take place :
Cl - CH₂ - CH₂ - CH₂ - CH₃ + NaOH ----> CH = CH - CH₂ - CH₃
1-chlorobutane sodium hydroxide 1-butene
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Which of the following is not a lab safety rule?
Always wear your goggles!
Tie hair back when working with flames.
Know where all safety equipment is.
Dispose of all chemicals down the sink.
The following is not a lab safety rule is Dispose of all chemicals down the sink.
Option D is correct.
What is the fundamental rule for laboratory safety?When working with dangerous substances in the laboratory, you should always wear long pants, safety glasses, and a lab coat. When working in the laboratory, the best way to protect yourself is to wear the right protective gear. Before leaving the laboratory, wash your hands and remove your personal protective equipment.
Why are lab regulations essential?Since pretty much every lab utilizes synthetics or the like, compound security rules are an unquestionable requirement. Employees can avoid spills, other accidents, and damage to the environment outside the lab by adhering to these policies.
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12. A container holds 0.52 moles of chlorine gas, 0.38 moles of hydrogen gas, and 0.47 moles
of argon gas. If the total pressure of the gases is 5.8 atm, what is the partial pressure of each
gas?
Answer:
The partial pressures of chlorine gas, hydrogen gas, and argon gas in the container are 2.16 atm, 1.60 atm, and 1.96 atm respectively.
Explanation:
The partial pressure of a gas in a mixture is proportional to the number of moles of that gas present. So, the partial pressure of chlorine gas (PC) can be calculated as:
PC = (0.52 moles of chlorine / (0.52 + 0.38 + 0.47)) * 5.8 atm = 0.52 * 5.8 / 1.37 = 2.16 atm
Similarly, the partial pressure of hydrogen gas (PH) can be calculated as:
PH = (0.38 moles of hydrogen / (0.52 + 0.38 + 0.47)) * 5.8 atm = 0.38 * 5.8 / 1.37 = 1.60 atm
And the partial pressure of argon gas (PA) can be calculated as:
PA = (0.47 moles of argon / (0.52 + 0.38 + 0.47)) * 5.8 atm = 0.47 * 5.8 / 1.37 = 1.96 atm
So, the partial pressures of chlorine gas, hydrogen gas, and argon gas in the container are 2.16 atm, 1.60 atm, and 1.96 atm respectively.
Which hydroxides are strong bases?Sr(OH)2KOHNaOHBa(OH)2A) KOH, Ba(OH)2B) KOH, NaOHC) KOH, NaOH, Ba(OH)2D) Sr(OH)2, KOH, NaOH, Ba(OH)2E) None of these is a strong base.
The hydroxides that are the strong base : NaOH, KOH, Sr(OH)₂, Ba(OH)₂ all are the hydroxides are the strong bases.
The hydroxide are as follows :
1) NaOH,
2) KOH,
3) Sr(OH)₂,
4) Ba(OH)₂
The all the hydroxides mentioned above is the strong bases. The all the hydroxide are belongs to 1 group and 2 group. The strong base ia the base that will completely dissociates in the aqueous solution. The bases are the substances that when dissolves in to the water will completely dissociates and produces the more hydroxide ion (OH⁻). The weak bases will only partially dissociates when dissolve in the water.
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when benzene is reacted with hot sulfuric acid or a mixture of so3 in h2so4, which group replaces a ring h?
When benzene is reacted with hot sulfuric acid or a mixture of so3 in h2so4, which group replaces a ring h?
The resulting product is the substitution of one of the hydrogen atoms in the benzene ring with a sulfonic acid group (-SO3H).
This reaction is known as sulfonation, and it results in the formation of a sulfonic acid derivative of benzene.
What is Sulfonation?
Sulfonation is a chemical process in which a sulfonic acid group (-SO3H) is introduced into a molecule. It is typically performed as a reaction between a sulfonic acid anhydride and a substrate molecule. The result of sulfonation is a sulfonated product, which has increased water solubility and improved acidity compared to the original substrate. Sulfonation is commonly used in the synthesis of surfactants, detergents, and other industrial and commercial products.
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in which reaction is h2o considered to be acting as an acid?
If water (H2O) gives a proton (H+) to another molecule, it is seen as functioning as an acid in the process.
The proton-accepting molecule is referred to as the base in an acid-base reaction, which is what this reaction is.
For instance, when water and ammonia (NH3) mix, water can give ammonia a proton, resulting in the formation of the hydronium ion (H3O+) and the ammonium ion (NH4+):
NH3 + H2O -> H3O + NH4 +
Ammonia, which is acting as a base and accepting a proton, is receiving a proton from water, which is functioning as an acid in this reaction.
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There are two different compounds with the molecular formula c2h6o. One of this has a much higher boiling point than the other. Write the name of the compound with the lower boiling point.
Ethanol and methoxymethane are the two significant isomers of the chemical C2H6O. (or dimethyl ether). Beverages like ethanol possess functional groups called OH or hydroxyl groups. Methoxymethane is an ether, and the R-O-R' ether bond functions as the functional group.
The grouping 6A elements (oxygen, arsenic, selenium, and tellurium) produce more strongly polar hydrides even though they possess two free electrons for bonding. As a result, the fluid's intermolecular attraction is stronger, raising its boiling point. Water has the greatest boiling point between all materials owing because of its remarkable irregular shape and strong electronegative energy.
The chemical element with the lowest boiling is hydrogen, whereas the one with the highest boiling temperature is tungsten. Of all the elements, helium has the highest boiling point.
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hydroxide is not a suitable base for deprotonating an alkyne, why? use pka values to support your answer.
Hydroxide is not a suitable base for deprotonating an alkyne because it is a weak base.
Due to the acetylide ion's lower stability (stronger base) compared to the hydroxide ion. In other words, acetylene cannot be deprotonated using hydroxide.
Deprotonation is the process of eliminating the compound's most acidic proton using a base that you must select. We refer to it as a base because, according to the Bronsted-Lowry definition, the proton donor in an acid-base reaction is the given chemical if it is deprotonated, which makes it a base.
The terminal alkynes can be deprotonated by suitable strong bases, such as NaH or NaNH2, due to the relative high acidity.
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do the sp2 carbons and the indicated sp3 carbons lie in the same plane?
The sp² carbons and the indicated sp³ carbons are not lie in the same plane.
What is hybridization ?The phenomenon of hybridization is the combination of two atomic orbitals to produce a new degenerate hybrid orbital with the same energy levels. Hybridization improves bond formation stability over unhybridised orbitals. The hybridization of molecules allows us to predict their shape.
Because pi bonds prevent atoms from rotating, they will be in the same plane if they have a double or triple bond. Furthermore, if the atoms are trigonal or square planar, they are in the same plane.
Thus, The sp² carbons and the indicated sp³ carbons are not lie in the same plane.
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What is the route that electricity takes to reach your homes?
Answer:
from power stations, through transmission lines and distribution lines
Explanation:
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What is the trend in ionization energy as you go down a group?
answer choices
a. Down the group Ionization energy increases because atomic radius decreases.
b. Down the group Ionization energy decreases because atomic radius decreases.
c. Down the group Ionization energy decreases because atomic radius increases.
d. Down the group Ionization energy increases because atomic radius increases.
The trend in ionization energies as you go down a group is C. Going down the group Ionization energies decrease as the atomic radius increase.
Definition of Ionization EnergyIonization energy is the energy required to remove an electron from a neutral atom in gaseous form. Also as with the atomic radius, the periodicity of this one element also has the following tendencies:
In a group from top to bottom, the ionization energy of an element decreases because the atomic radius increases, so that the attraction of the nucleus to the outermost electrons becomes weaker and the ionization energy decreases.
In one period, the ionization energy of the elements increases from left to right because the atomic radius is getting smaller, so that the attraction of the nucleus to the outermost atom is getting stronger and the ionization energy is increasing.
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In this exercise, you will interpret how to read a Safety Data Sheet (SDS) by listing the basic information provided on a SDS. b Procedure 1 Use the Internet to find the SDS for regular bleach (sodium hypochlorite, 4-6%). 2 Identify each of the following items on the SOS: a. Physical state b. Routes of exposure and symptoms
c. Required protective equipment d. First aid procedures e. Firefighting measures f. Chemical reactivity g. Safe storage h. Safe disposal i. Environmental precautions and ecotoxicity j. Spill cleanup procedures 3 Record the SDS information for each of the items listed in step 2 into Data Table 2. FFH SDS Information Liquid Data Table 2
(A) Physical state : Thin liquid
B) Routes of exposure and symptoms
Inhalation: Exposure to vapor or mist may irritate respiratory tract and cause coughing. Inhalation of high concentrations may cause pulmonary edema.
What is Safety Data Sheet ?A safety data sheet, also known as a material safety data sheet or product safety data sheet, is a document that contains details about workplace safety and health when using various substances and goods.
A Safety Data Sheet is a thorough informational document created by the maker or importer of a hazardous substance (formerly known as a Material Safety Data Sheet). It provides information on the product's physical and chemical characteristics.
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union carbide contended that the accident was the result of ____
Union Carbide contended that the accident was the result of sabotage.
Union Carbide was a chemical company that was responsible for the 1984 Bhopal disaster, which was one of the worst industrial accidents in history. The disaster resulted in the release of toxic gas into the surrounding communities, causing widespread death and injury.
In the aftermath of the disaster, Union Carbide argued that the accident was the result of sabotage, claiming that someone intentionally introduced water into the tank containing the toxic gas, which caused the release of the gas. The company maintained this position for several years, despite significant evidence suggesting that the disaster was the result of poor safety practices, inadequate maintenance, and inadequate emergency planning.
However, this claim of sabotage was widely discredited, and Union Carbide eventually admitted that the disaster was the result of operational and design failures at the plant, including the lack of safety features and the inadequate training of employees.
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what property of a solution is described by its ph?
The property of the solution is described by the pH is the Acid - Base property.
The pH of the solution is the measure of hydrogen ion concentration in the solution. The pH of the solution describes the acid nature and the basic nature of the solution. The pH scale ranges from the 0 to 14 .
If the pH of the solution is blow the value 7 , it means that the solution is acidic in nature. If the pH of the solution is above 7 than the solution is basic in nature. Th pH value 7 is for neutral solution.
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Three students are asked to discuss the percent error obtained from this lab and explain some sources of error that would account for the discrepancy seen, if any. Select the student that employs correct scientific reasoning. • Student 1: If the reaction was not allowed to go to completion, the sodium bicarbonate would not have fully decomposed, making the final mass higher than the theoretical. • Student 2: If the baking soda was not heated long enoughthe final mass of solid product would be low. • Student 3: The student didn't weigh the masses correctly therefore human error is the main source of discrepancy. choice answersStudent 3 Student 1 Student 2
Students who use correct scientific reasoning are Student 1 namely: If the reaction is not allowed to finish, the sodium bicarbonate will not decompose completely, making the final mass higher than the theory.
If the sodium bicarbonate is not decomposed properly, carbon monoxide and water will not be formed, which can be removed to reduce the mass of the product. Therefore, due to an incomplete reaction, the product will have more weight, or the final mass will be greater than in theory.
In the case of Student 2, it is clear from the reasons above, Student 2 is wrong. In the case of Student 3, this is not a scientific explanation and just a random guess that doesn't hold in every situation.
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Coral and algae demonstrate mutualism, a symbiotic relationship where both organisms benefit. Select the option that is also an example of a mutualistic symbiotic relationship.
Cattle egrets follow livestock herds. As the livestock walk, they stir up insects in the grass, and the cattle egrets feed on the insects
Remoras hitchhike on large fish and sharks, eating dead skin and parasites off the larger animals
Wasps lay eggs on tomato hom worms to develop When the larvae hatch, they feed on the horn worms
Clownfish live inside anemones, protected from predators by the anemones' stinging tentacles
Clownfish live inside anemones, protected from predators by the anemones' stinging tentacles.
Clownfish and sea anemones are a classic example of a mutualistic symbiotic relationship. The relationship between these two species is mutually beneficial, with each species providing benefits to the other.
Key points:
Protection: Clownfish are protected from predators by the stinging tentacles of the sea anemone. This is because the tentacles contain toxins that deter predators, but clownfish are immune to the toxins, allowing them to reside safely within the anemone.Nutrients: Clownfish provide the anemone with food in the form of waste and uneaten bits of food. This waste provides the anemone with essential nutrients, helping it to thrive.Shelter: The anemone provides the clownfish with a safe and secure place to live and lay eggs. Clownfish are able to retreat into the anemone whenever they feel threatened.Mutual Defense: The presence of clownfish can also protect the anemone from potential predators. Clownfish will use their bodies to block the entrance to the anemone, preventing predators from getting close.Learn more about the mutualistic symbiotic relationships here:
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calculate the vapor pressure (in torr) at 293 k in a solution prepared by dissolving 16.20 g of the non-volatile non-electrolyte urea {co(nh2)2} in 156 g of water. the vapor pressure of water at 293 k is 17.54 torr.
The vapor pressure (in torr) at 293 k in a solution prepared by dissolving 16.20 g of the non-volatile non-electrolyte urea {CO(NH₂)₂} in 156 g of water.
The relative lowering of vapor pressure is one of colligative property. That means the vapor pressure of the solution should be lower than the vapor pressure of solvent i.e. water. The formula to calculate the vapor pressure of the solution is (P° - P)/P° = x, where P° = vapor pressure of solvent i.e. water = 17.54 torr.
P = vapour pressure of solution x = mol fraction of solute = (mol of solute)/(total mol)Mol of solute = mass / molar mass = 16.20 g /60g/mol = 0.27 mol
Mol of solvent = mass / molar mass = 156g/18g/mol = 8.66 mol
Total moles = 0.27 mol + 8.66 mol = 8.93 mol
Hence, x = (0.27mol) /(8.93 mol) = 0.0302.
Now put these data into the above equation to find the vapor pressure of solution(P).
=> P = P° ( 1 - x )
=> P = 17.54 ( 1 - 0.0302 )
=> P = 17.54 × 0.9698
=> P = 17.01
Hence, the required vapour pressure of water is 17.01 torr at 293 k.
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hydrogen peroxide decomposes to release oxygen. how much space does the oxygen occupy if 40.8 g of hydrogen peroxide decomposes at –13ec and 2.40 atm?
The volume of oxygen produced is 25.1 L.
To determine the volume of oxygen produced, we need to consider the balanced chemical equation for the decomposition of hydrogen peroxide and the ideal gas law. The balanced chemical equation for the decomposition of hydrogen peroxide is:
[tex]2H_{2}O_{2}- > 2H_{2}O+O_{2}[/tex]
We can see that for every mole of hydrogen peroxide decomposed, one mole of oxygen is produced. We can convert 40.8 g of hydrogen peroxide to moles and then determine the number of moles of oxygen produced. Using the molar mass of hydrogen peroxide (34.01 g/mol), we find that 40.8 g of hydrogen peroxide is equivalent to 1.20 moles. Hence, 1.20 moles of oxygen are produced.
Next, we can use the ideal gas law, PV = nRT, to determine the volume of oxygen produced. Here, P = 2.40 atm, V = ?, n = 1.20 moles, R = 0.0821 L-atm/mol-K, and T = (-13 + 273) K = 260 K. Solving for V, we find that the volume of oxygen produced is 25.1 L.
So, in conclusion, if 40.8 g of hydrogen peroxide decomposes at -13°C and 2.40 atm, the volume of oxygen produced is 25.1 L.
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What does hypo and hyper mean in medical terms?
Hyper = above normal. Hypo = below, less than normal.
What are compounds ?
A compound is a substance consisting of two or more elements chemically combined in a fixed ratio. They differ from mixtures consisting of two or more substances physically mixed without chemical bonding. Compounds have their own physical and chemical properties that differ from those of individual elements. For example, the compound water (H2O) has different properties (boiling point, density, solubility, etc.) than its components hydrogen (H2) and oxygen (O2).
Compounds are formed by chemical reactions in which atoms of different elements combine to form new substances. The formation of a compound can be represented by a chemical formula that indicates the type and number of atoms in the compound.
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