In literary classes, the three most popular types are verbal irony, dramatic irony, and situational irony. When a speaker or narrator says something that contradicts what they mean, what they intend, or what the context necessitates, this is called verbal irony.
What is irony?One thing is expressed while another is meant in an ironic statement. For example, on a chilly, wet gray day, you would exclaim, "What a gorgeous day!" Alternatively, if you were suffering from a severe case of food sickness, you may respond, "Wow, I feel terrific today." "ffers points of view and ideas that are, at most, intriguing... However, it does not reach the truth." Ronagh and Souder are particularly concerned with scientific assertions that are not meant to be taken seriously.
Here,
The three most common varieties in literary studies are verbal irony, dramatic irony, and situational irony. Verbal irony occurs when a speaker or narrator says something that contradicts what they mean, what they intend, or what the context requires.
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A flask contains a mixture of N2 and O2 at STP. If the partial pressure of N2 is 40 kPa, what's the mole fraction o
A flask contains a mixture of N₂ and O₂ at STP. If the partial pressure of N₂ is 40 kPa, the partial pressure of O₂ is 61.325 kPa.
STP is the abbreviation which is used for a Standard Temperature and Pressure. The standard temperature is 273 K as well as the standard pressure is 1 atm pressure.
1 atm = 101.325 kPa
According to Dalton's law, state's that the sum of the individual pressures exerted by the gases in a mixture is the total pressure.
[tex]P_{total}[/tex]= [tex]P_{A}[/tex] + [tex]P_{B}[/tex]
Therefore, [tex]P_{total}[/tex]= [tex]p_{n2}[/tex] + [tex]P_{O2}[/tex]
[tex]P_{N2}[/tex] = 40kPa
[tex]P_{total}[/tex] = 101.325kPa
101.325kPa = 40kpa + [tex]P_{O2}[/tex]
[tex]P_{O2}[/tex] = 61.325kpa
--The given question is incorrect, the correct question is
--"A flask contains a mixture of N₂ and O₂ at STP. If the partial pressure exerted by the N₂ is 40.0 kPa, the partial pressure of O₂ is?"--
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What is Gay- Lussacs law? State the definition of law in your own words.
Fe(OH)3
⎯⎯→
Fe2O3
⎯⎯→
Fe
⎯⎯→
FeCl2
⎯⎯→
Fe(OH)2
Answer:
decomposition reaction
Organic compounds form the basis of?
Answer:
1. carbon
Explanation:
carbon atoms bound to one another and other atoms by covalent bonds and found in the cells of living organisms. Hydrogen, oxygen and nitrogen are typical elements which, in addition to carbon, make up organic compounds.
The density of ________ is 0.900 g/L at STP? a) CO
b)CH4
c) NO
d) Ne
e) N2
Answer:ne
Explanation:
A vessel is filled with a gas at a temperature of 30 degree celsius and operator of 67cm mercury calculate the final pressure of the volume of the gas is doubled it is heated to 80degree celcious
The final pressure is 6312.935 Pa.
The final pressure of the gas can be calculated using the Ideal Gas Law, PV = nRT.
In this situation, the volume of the gas is doubled and the temperature is increased from 30 degrees Celsius to 80 degrees Celsius, while the number of moles of gas and the ideal gas constant remains constant.
Therefore, the pressure of the gas will decrease as the volume doubles and the temperature increases. The final pressure can be calculated by multiplying the initial pressure by the ratio of the initial volume to the final volume and the ratio of the final temperature to the initial temperature.
Final pressure = (Initial pressure) x (Initial volume / Final volume) x (Final temperature / Initial temperature)
The initial pressure is 67cm mercury. 1cm mercury = 133.322 Pa so 67cm mercury = 67*133.322 =8933.294 Pa.
The final temperature is 80-degree celsius = 80+273 = 353K
The final pressure =8933.294 x (1/2) x (353/303) = 6312.935 Pa
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How many times more acidic is a solution with a pH of 2 compared with one with a pH of 5 Explain.
pH is a logarithmic scale.This implies that the acidity (H + concentration) changes by 10 times for each pH variation of one digit. For instance, a pH 4 solution contains 10 times more H + than a pH 5 solution. Since a pH 3 solution is 100 times more acidic than a pH 5 solution, it will contain 100 times more hydrogen ions (H +).
What is the pH scale?A water-based solution is described by its pH value. In general, an acidic solution is one with a small pH value, and an alkaline solution is one with a larger pH value (more basic). Since the pH scale is symmetrical around 7, a solution with a pH of 7 is completely neutral (neither acidic nor basic). Figure 1 displays a few instances of typical compounds and where they fall on the pH scale.
The concentration of hydrogen ions (H+) in a solution is directly measured by the pH value of the solution. Acids have high H+ concentrations, which results in low pH levels. There is hardly any H+ in bases. Large pH values, greater than pH 7, are present in basic liquids.
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A chemist determined by measurements that moles of silver participated in a chemical reaction. Calculate the mass of silver that participated in the chemical reaction.
A chemist determined that moles of silver participated in a chemical reaction using measurements. The mass of silver involved in the chemical reaction is 1.08 grams.
Moles of silver participated = 0.01
Molar mass of silver = 108 gram/mole
Weight of silver participated= mole* molar mass
= 0.01*108 gram
= 1.08 gram
A chemist (from the Greek chm(a) alchemy; replacing chymist from Medieval Latin alchemist) is a scientist who studies chemistry. Chemists investigate the structure and properties of matter. Chemists meticulously describe the properties of molecules and their constituent atoms in terms of quantities. Chemists carefully measure the proportions of substances, the rates of chemical reactions, and other chemical properties. Pharmacists are commonly referred to as chemists in Commonwealth English.
Chemists apply their knowledge to learn the composition and properties of new substances, as well as to reproduce and synthesize large quantities of useful naturally occurring substances and to create new artificial substances and processes.
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Determine the number of atoms of each element in the following: 4Al(OH)3
symbol
aluminium - Al 4
oxygen- o 12
hydrogen- H 12
In the following pair, which species would you expect to be the stronger Lewis acid?
a Cu+
b Cu2+
from the given pair, Cu 2+ is the specie that would you expect to be the stronger Lewis acid- Cu 2+
A Lewis acid is a chemical species that can accept a pair of electrons to form a covalent bond. It is named after Gilbert N. Lewis, who first proposed the concept in 1923. In general, a Lewis acid can be any atom, ion or molecule that has an empty orbital that can accept an electron pair from a Lewis base. The Lewis base is a species that can donate a pair of electrons to form a covalent bond.Examples of Lewis acids include metal cations, such as Al3+ and Fe3+, and neutral molecules that have a vacant orbital, such as BF3 and AlCl3. Inorganic compounds like H+ and boron trifluoride (BF3) are also examples of Lewis acids. It is important to note that the Lewis acid-base theory is an extension of the Bronsted-Lowry acid-base theory. This theory only considers the transfer of protons, but Lewis theory consider electron pair transfer.
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The solid has a mass of 180 g. What is the density of the solid? Show your work. Be sure to use correct units of measurement. HELP NEEDED ASAP!!!!
Answer:
I'm telling the teacher on u man stop cheatingWho first identified the element radium? charles richard drew enrico fermi jonas salk marie curie
Marie Curie is credited with the discovery of radium. In 1898, she and her husband Pierre Curie discovered the element while experimenting with pitchblende, an ore containing uranium. They isolated a new substance, which they named radium, after the Latin word for ray.
What is uranium?Uranium is a naturally occurring element that is found in rocks and soil. It is a dense, silvery-white metal that has the highest atomic weight of all elements. Uranium is slightly radioactive and produces energy when it undergoes nuclear fission. It is an important source of energy generation and is used in nuclear reactors to produce electricity. Uranium also has a variety of other uses, such as in military applications, medical imaging, and industrial processes. It is a nonrenewable resource, and its supply is limited. Due to its radioactive nature, uranium must be handled with caution and special safety precautions must be taken to protect against the radiation it
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Answer: its D- Marie Curie
Explanation: I got it right on the test! hope this helps :)
Identify the Lewis acid in the following reaction: Pt2+(aq) + 4NH3 (aq) ? Pt(NH3)4,2+(aq)
a) Pt2+
b) NH3
c) Pt(NH3)4,2+
The Lewis acid in the following reaction: Pt2+(aq) + 4NH3 (aq) ?Pt(NH3)4,2+(aq) is : a) Pt2+.
What do you understand by a Lewis acid?Platinum ion (Pt2+) ( P t 2 + ) is a Lewis acid in the given reaction because it accepts pair of electron from ammonia.
A Lewis acid is any substance, such as H+ ion, that can accept a pair of nonbonding electrons. In other words, Lewis acid is an electron-pair acceptor. Lewis acid is chemical species that has an empty orbital which is capable of accepting electron pair from Lewis base to form a Lewis adduct.
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Which is true of an atom? A. The valence electrons make up the majority of the mass and volume of an atom. B. The electron cloud makes up the majority of the mass and volume of an atom. C. The valence electrons make up the majority of the mass of an atom but do not take up much volume. D. The electron cloud makes up the majority of the volume of an atom but does not have much mass
The statement that is true about an atom is D. The majority of volume of an atom is make up by the electron cloud which has no mass.
In an atom, there are three sub-atomic particles that are protons, electrons and neutrons. The protons and neutrons are present inside the nucleus while the electrons revolve around the orbits i.e., circular orbits. The majority of volume of an atom is make up by the electron cloud which has no mass. Electrons are negatively charged in nature while the positive species are protons and neutrons carry no charge in them. The circular path is termed as orbits in which electrons revolve.
Thus, option D is the correct choice.
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A 1. 15 x 104 mg block of metal has the following dimensions: 0. 5839 inches by 0. 531 inches, by 0. 4981 inches. Determine the density of the block in g/cm3. Using the provided list of metals and their respective densities, what is the metal's identity
The block has a density of 7.3 g/ml. The density is the same as for tin. Tin is the metal's true identity.
Absolute population and particle density are the two main types of density. Relative density, also called as coarse aggregate, is the ratio of a substance's density to the volume of a reference substance. The reference substance is often water.
The density of a substance is a measurement of its thickness in relation to its volume. A product will float in a solution if its density is lower than the water's, while it will sink if it has a higher density.
Density of the block can be calculate as follows:
Volume of metal = 1xb×h
I = 0.5839 in
b = 0.531 in
h = 0.4981 in
volume = 0.5839×0.531×0.4981
=0.1544363
=2.53ml
mass of metal =1.84×10⁴ mg
=18.4 g
density = g/ml
=18.4/2.53
=7.3 g/ml
from its density we can conclude the block of metal is Tin
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What do the small lines marked on the Meterstick represent?
The small lines marked on the Meterstick represents the measurement you make can be certain to the centimeter.
Centimeter is the metric unit of the measurement which is used for measuring the length of an object.
Meterstick is the measuring stick one meter long that is marked off in centimeters and usually millimeters. A meterstick is divided into 100 cm. The smallest lines on the meterstick are the centimeters which means that each measurement you make can be certain to the centimeter. It is used to measure the things in meters and centimeters. For example: Length of a table or the width of a bag can be measured by using a meterstick.
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What is an irony definition?
In literary classes, the three most popular types are verbal irony, dramatic irony, and situational irony. When a speaker or narrator says something that contradicts what they mean, what they intend, or what the context necessitates, this is called verbal irony.
What is irony?One thing is expressed while another is meant in an ironic statement. For example, on a chilly, wet gray day, you would exclaim, "What a gorgeous day!" Alternatively, if you were suffering from a severe case of food sickness, you may respond, "Wow, I feel terrific today." "ffers points of view and ideas that are, at most, intriguing... However, it does not reach the truth." Ronagh and Souder are particularly concerned with scientific assertions that are not meant to be taken seriously.
Here,
The three most common varieties in literary studies are verbal irony, dramatic irony, and situational irony. Verbal irony occurs when a speaker or narrator says something that contradicts what they mean, what they intend, or what the context requires.
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The fluid-filled interior compartment of the thylakoid network is referred to as the:
A. cytoplasm.
B. intermembrane space.
C. lumen.
D. grana.
E. stroma.
The fluid-filled interior compartment of the thylakoid network is referred to as the: Lumen
The thylakoid lumen is an aqueous phase that is continuously enclosed by the thylakoid membrane. It is essential for photophosphorylation during photosynthetic activity. Protons are hyped across the thylakoids into the lumen during the light-dependent reaction, making it acidic down to pH 4. The lumen in the chloroplast is referred to as the stroma. The stroma is the whitish fluid that surrounds the grana (thylakoids stacks) within the chloroplast. A lumen is the chloroplast membrane that surrounds space. Light energy is captured by photosystems found in thylakoid membranes. The thylakoid membrane contains enzymes required for photosynthesis's light-dependent reactions. Hydrogen ions are pumped into the thylakoid space, or lumen, during these reactions.The thylakoid space has an acidic pH due to the high concentration of hydrogen ions.
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What is molecular magnet? Draw 1 diagrams to show the arrangement of molecular magnets in magnet and magnetic substances.
The two elements that are frequently used for making transistors are
A. boron and aluminium
B. silicon and germanium
C. iridium and tungsten
D. niobium and columbium
The two elements that are frequently used for making transistors are niobium and columbium.
What is an element?It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
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What is the density of object A (give 2 sig figs)?
The mass of the object compared to its volume
How do you calculate an object’s density?The density of an item is defined as its mass divided by its volume. Density is commonly expressed in grams per cubic centimeter (g/cm3). Remember that grams are a unit of mass and cubic centimeters are a unit of volume (the same volume as 1 milliliter).
When multiplying or dividing, the result should have the same number of significant digits as the number in the computation that has the fewest. This is the volume measurement with only two sig figs in this case, hence the density should be given as 2.9 g/cm3. The density of an item is the ratio of its mass to its volume. Density is defined as density = mass/volume, or D = m/v.
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What can help overcome a positive enthalpy of solution and allow a solid solute to dissolve in water
New ion-dipole or dipole-dipole attractions take effect if the solute is an ion or polar molecule on its own.
When things go well, they could release enough potential energy to partially offset the energy needed to integrate the solute into the structure. Ammonia dissolving in water is a striking illustration of this. Solution's enthalpy. A solution is a uniform combination of two or more components that can exist in the solid, liquid, or gas phases. The amount of heat that is emitted or absorbed during the dissolving process is known as the enthalpy change of solution (at constant pressure).The solvent molecules begin to dissociate as a result. This process' enthalpy is referred to as. Since energy is needed to break the contact between the B molecules, this reaction, like the first, is always endothermic (). Let's try to picture what has transpired up to this point.
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Write the equilibrium expression, Kc, for Reaction 4: H2 + I2 ⇌ 2HI (Hint: Because of the coefficient “2” in front of HI, you will have to square the concentration of HI to find Kc.)
The formula for the equilibrium constant is; [tex][HI]^{2} /[H_{2} ] [I_{2} ][/tex]
What is the equilibrium constant?We know that when we talk about the equilibrium constant that we are looking at the kind of constant that shows the extent to which there has been the conversion of the reactants to the products.
We can be able to obtain the equilibrium constant of the system by the application of the law of mass action and this would give the correct6 form of the expression for the equilibrium constant. This is how we know which of the species would have the square.
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The reaction 2NO(g) + O2(g) → 2NO2(g)
has the following rate law: Rate = k[O2][NO]2.
the order of [NO] is
The order of [NO] is 2.
The rate law for a chemical reaction is an equation that describes how the rate of the reaction changes with respect to the concentrations of the reactants. In this case, the rate law for the reaction 2NO(g) + O2(g) → 2NO2(g) is Rate = k[O2][NO]^2.
The order of a reactant in a rate law is determined by the exponent to which its concentration is raised. In this case, the concentration of NO is raised to the power of 2, so the order of [NO] is 2. This means that the rate of the reaction is directly proportional to the square of the concentration of NO. Therefore, as the concentration of NO increases, the rate of the reaction will increase at a faster rate.
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What are the two factors that affect the arrangement of particles in a substance?
The two factors that affect the arrangement of particles in a substance are kinetic energies and intermolecular forces.
In chemistry, all the substances are composed of tiny particles which are in constant motion.
The substance which is made up of atoms, ions or molecules, all the particles possess kinetic energy and keep moving in all direction. On the other hand, intermolecular forces are also present in a substance which keeps the particles together within their boundaries and doesn't let them go far away. In this way substances maintain their shape, arrangement and properties.
In sum, two factors play a crucial role in maintaining the properties of a substance: Kinetic energy and intermolecular forces.
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Why does the water creep up the paper? Explain this. Draw the molecular interactions associated with the macroscopic observation.
( I only need the drawing to be honest and I would really appreciate it if you could explain it)
Capillary action involves the hydrogen bonding in water.
What is capillary action?We have to note that when we are talking about capillary action, what we mean is the movement of water up the paper. We know that this movement of water would have a lot to do with the kind of intermolecular interaction that is going on.
Note that the water is composed of polar O-H bonds that can be able to interact with the -OH bonds that can be seen in the cellulose that is water and this accounts for the capillary action in water.
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The transfer of energy from one region of the atmosphere to another is of great importance in meteorology for it affects the weather. Calculate the heat needed to be supplied to a parcel of air containing 1. 00 mol air molecules to maintain its temperature at 300 K when it expands reversibly and isothermally from 22 dm3 to 30. 0 dm3 as it ascends
Energy transfer from one region of the atmosphere to another is critical in meteorology because it affects the weather.
What is Meteorology?
Meteorology is the science of studying the atmosphere and its phenomena such as weather, climate, and air pollution. It is a branch of the atmospheric sciences and studies the physical processes that make up the atmosphere and how the atmosphere affects the Earth and its inhabitants.
The amount of heat needed to be supplied to the parcel is given by the equation:
Q = nRT∆V
Where n is the number of moles of air, R is the ideal gas constant, T is the temperature in Kelvin and ∆V is the change in volume.
Therefore, the amount of heat needed to be supplied to the parcel is given by:
Q = (1.00 mol)(8.314 J/molK)(300 K)(30.0 dm3 - 22.0 dm3)
Q = 4, 573.2 J.
This is important because it demonstrates the amount of energy that must be supplied in order to keep the parcel of air at a constant temperature as it expands. Without this energy, the temperature of the parcel would decrease as it expands, resulting in a change in its weather patterns.
Hence, the amount of heat needed is: Q = 4, 573.2 J.
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What is iupac name of this compound
Answer:
Explanation:
The lupac name of this compound is 2-Oxohexanoic acid. This compound is composed of two oxygen atoms, six carbon atoms, and one hydrogen atom. The parent chain is made up of six carbon atoms, and the functional group is a carboxylic acid group (COOH)
What happens to the molecules in the room as they change from a liquid to a gas?
When a liquid changes to a gas, the molecules in the room gain enough energy to break the bonds that hold them together in the liquid state.
What are Molecules?
Molecules are the smallest unit of matter that still has the properties of a particular substance. They are made up of two or more atoms that are bonded together. Molecules can be covalent, meaning the atoms in the molecule share electrons, or ionic, meaning one atom has donated electrons to the other.
This energy comes from an increase in temperature, which causes the molecules to move faster and farther apart. As the molecules move around and expand, they fill the room with a vapor or gas.
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Are used for energy storage to build structures and as signal molecules to help cells communicate with each other
Yes, carbohydrates are used for energy storage to build structures, and as signal molecules to help cells communicate with each other.
Carbohydrates and functionsCarbohydrates are molecules that consist of carbon, hydrogen, and oxygen atoms and can be broken down by the body to provide energy. They are used to build the structural components of cells, such as the cell walls and membranes, and are also used as signal molecules between cells. As signal molecules, they can help cells communicate with each other and respond to changes in the environment.
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