Answer:
Discharge
Explanation:
this is the answer
The switch in the circuit in Fig. P7.12 has been a position 1 for a long time. At t = 0, the switch moves instantaneously to position 2. Find v0(I) for t 0 . For the circuit of Fig. P7.12, what percentage of the initial energy stored in the inductor is eventually dissipated in the 40 Ohm resistor? The switch in Fig. P7.14 has been closed for a long time before opening at t = 0. Find
The 40 Ohm resistors eventually lose 8.9% of the initial energy that was stored in the Inductor. Electrical component with two terminals that is passive and stores energy in its magnetic field.
What type of energy source does an inductor use?The ideal inductor receives electrical energy from the source at a rate of p = Ei. Inductance, unlike resistance, is unable to transform this energy into heat or light.
How does a continuous current affect the magnetic field?The magnetic field's stored energy is constant when the current is stable. Although the inductance of the real-world inductors doesn't store any extra energy.
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What are three examples organisms?.
An organism is typically referred to as a single or unique living species that demonstrates all the characteristics of life. These might be a bacterium, plant, animal, bird, or even an insect.
What is an organism, simply put?A living human, plant, or animal that is capable of carrying out life's processes thanks to organs with unique roles but interdependent relationships organismic.
What types of organisms are examples?A living creature with a organized approach, is capable of responding to stimuli, can reproduce, develop, adapt, and preserve homeostasis is referred to as an organism. Therefore, every animal, plant, fungi, protist, microbe, or archaeon found on Earth would be considered a life.
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A certain compound containing only carbon and hydrogen was found to have a vapor density of 2. 550 g/l at 100°c and 760 mm hg. If the empirical formula of this compound is ch, what is the molecular formula of this compound?.
The molecular formula for this given hydrocarbon is C6H6. IUPAC:- (n-hexyne).
To find the molecular formula, we first need to figure out the molar mass of the compound. Moving ahead, we need to know the mass of the molecule which can be calculated using the ideal gas equation. Assuming we do have 1 liter and 2.550 grams and the pressure is 760mmhg which is equal to 1atm. Divide the pressure and the volume by the gas constant and the Temperature (in kelvin) which equals to the number of moles. Now you have the number of moles and the mass of the compound (2.550grms) through which you can find the molar mass of the compound which is 78g/mol. We know that molar mass of carbon is 12g/mol and 1g/mol for hydrogen by which we can assume the molecular formula will have 6 carbon and 6 hydrogen. So the molecular formula for this compound is C6H6.
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Why do the stars and the constellations in the sky appear to change positions throughout the night and throughout the year?
The stars and the constellations in the sky appear to change positions throughout the night and throughout the year because earth's orbit around our sun .
A constellation is a group of stars. star appear to form a pattern. The star are distant object. the earth's rotate on its axis , as earth's rotate the stars appear to move. from east to west. We observed throughout the year the constellation shift to west gradually. This is because earth's orbit around our sun.
Thus, The stars and the constellations in the sky appear to change positions throughout the night and throughout the year because earth's orbit around our sun .
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how many molecules of lactate can be produced from one molecular of glucose through glycolysis and lactate acid fermentation?
The number of molecules of lactate can be produced from one molecular of glucose through glycolysis and lactate acid fermentation is two molecules of lactate.
Fermentation is the way of breaking down glucose . In the fermentation the only way is glycolysis. six moles of pyruvate generated the two lactate molecules. fermentation is anaerobic process that allow glycolysis to break down glucose into the pyruvate. during fermentation of lactic acid by the anaerobic process two molecules of ATP are produced.
Thus, The number of molecules of lactate can be produced from one molecular of glucose through glycolysis and lactate acid fermentation is two molecules of lactate.
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flammable liquid is being pumped out of a drum into a bucket using a hand pump. describe an appropriate grounding and bonding procedure.
When transferring flammable liquids from storage drums to smaller electrically conductive containers, bonding and grounding are required. In any workplace, you should do the same whenever you move these liquids between conductive containers.
What exactly occurs in this case?Ground dispensing drums in the area for storing and dispensing flammable liquids. Connecting the container to an already grounded, electrically conductive object grounds it. This could be a grounded metal construction framework, a buried metal plate, a metallic subsurface gas piping system, or metal water pipes. Sparks are prevented from discharging by bonding the two containers together and grounding one of them. All connections for bonding and grounding must be made from bare metal to bare metal.
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Answer the four questions to figure out the four digit code
Answer:
question 1 =c
question 2 =a
question 3 =d
question 4 =b
Which evidence from "marie curie and the discovery of radioactivity" best supports the idea that radium is helpful to humans?.
Cancer treatment acts as evidence from "Marie curie and the discovery of radioactivity" best supports the idea that radium is helpful to humans.
Because radiation became the most efficient and safest approach to cure cancer after Marie Curie's discovery because it inhibited the growth of cancer cells and was less invasive than surgery, radium was considered safer and more effective than surgery or the chemicals used to treat cancer at the time.
The discovery of polonium and radium, two naturally radioactive elements, attracted headlines, but Marie Curie's true discovery was that atoms were not little, solid balls and that there must be even smaller particles inside of them. This finding paved the way for all atomic and subatomic studies as well as atom splitting.
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how do differences in atomic structure of diamond and grpahite affect physical properites of each mineral
The differences in atomic structure of diamond and graphite affect physical properties of each mineral like graphite has less density as compared to diamond.
The diamond and graphite is allotropes of carbon. The structure of diamond is tetrahedron structure. The carbon atom in diamond structure is sp³ hybridizes. the bond length in carbon and carbon atom are equal in length. The diamond have high density. The structure of graphite is forming the hexagonal ring. the carbon atom in graphite is sp² hybridizes. The graphite has lower density and low electrical conductivity.
Thus, The differences in atomic structure of diamond and graphite affect physical properties of each mineral like graphite has less density as compared to diamond.
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A model for the campfire is Wood + Oxygen → Water + Carbon Dioxide + Ashes
Which reactant will run out? Which reactant will not run out? Justify your answer. (3 pts)
Answer:
wood run out and anothers don't runout ithink i am right
Why was the metal sample heated in a dry test tube rather than in the boiling water.
The metal is heated in a dry test tube to measure the capacity of the metal.
Define metal.Metals are a class of materials characterized by high electrical and thermal conductivity, as well as malleability, ductility, and high light reflectance.
About three-quarters of known chemical elements are metals. The most common types found in the Earth's crust are aluminum, iron, calcium, sodium, potassium, and magnesium. The majority of metals are found in ores (substances containing minerals), but some, such as copper, gold, platinum, and silver, are commonly found in the free state because they do not react easily with other elements. .
When doing chemistry experiments it is important to have:
The materials readyMake sure the mixture and elements are in the right amount of water. It should be placed in a dry test tube first to measure the capacity by heating in test tubeWhen heated with boiling water, the metal cools and the water heats up over time. After all, the two objects have the same temperature. They are then in thermal equilibrium with each other. Hot metal, on the other hand, releases energy into the water.
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which property best accounts for the conductivity of metals? * (1) the relatively high first ionization energy
The property best accounts for the conductivity of metals is the free electrons in the valence level.
The metal conduct the electricity because of the free electrons on the valence energy levels. The conductivity is due to the free electrons. metal which have the highest conductivity is silver . the metal which has lower conductivity us aluminum. conductivity is defined as the measurement of the current that how it flow through a substance. the si unit of the conductivity is siemens per meter.
Thus, The property best accounts for the conductivity of metals is the free electrons in the valence level.
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By representing the particles in a substance, you can model the
of the substance. The more particles shown, the
the mass of the substance.
The organization and motion of particles within a substance are modeled by the particle theory of matter. The model is used to describe how gases, liquids, and solids behave physically. Arrangement and motion of particles.
What is the means by a substance?When anything has a testing as well as a predetermined set of properties, it is said to be a substance. A substance would be any chemical unit or chemical class. Physically, a substance cannot be split. A pure substance's structural characteristics are constant. It included sugar and minerals like iron.
Which substance is pure?Pure substances are those that contain only one type of particle and are devoid of any mixtures. Metals such as iron, aluminium, silver, and gold are examples of pure substances.
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why are both polar and nonpolar compounds eluted by polar solvents, but only nonpolar compounds are eluted by nonpolar solvents?
Polar solvents make it simple to elute polar chemicals because they cause them to readily dissociate and then reassociate with them.
Why do non-polar substances dissolve in non-polar solvents?Solvents that are not polar can dissolve non-polar substances. Based on the idea that "like dissolves like," this. As a result, the ionic substance sodium chloride is soluble in water (polar solvent). Toluene can dissolve the non-polar chemical naphthalene (non-polar solvent).
What chemicals elute first: less polar ones?To elute a column, many increasingly polar solvent solutions are frequently utilized. A less polar chemical is initially eluted with a less polar solvent. A more polar solvent is added to the column after the less polar compound has been removed in order to elute the more polar compound.
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if you start with 1 m naoh and 40 ml of 1 m acetic acid, how many ml of the naoh will be required to reach the equivilence point?
40 ml of the NaOH is required to reach the equivalence point, if you start with 1 m NaOH and 40 ml of 1 m acetic acid.
What is molarity?The molarity of a substance refers to how much of it is present in a given volume of solution (M). Molarity is the measure of the amount of solute per liter of solution. Molarity is also referred to as a solution's molar concentration.
Let the volume of NaOH is V ml.
molarity of NaOH (M₁) is 1 m.
Moles of NaOH(n₁) = molarity × volume
n₁ = 1 × V
n₁ = V mmol
Molarity of CH₃COOH (acetic acid) is 1M
Volume of CH₃COOH is 40ml.
moles of CH₃COOH = 40 × 1
moles of CH₃COOH = 40 mmol
Reaction:
NaOH (aq) + CH₃COOH(aq) → CH₃COO⁻Na⁺(s) + H₂O
At equivalent point:
moles of acid = moles of base
moles of CH₃COOH = moles of NaOH
40 mml = V mml
∴ V= 40 ml
NaOH required is 40 ml.
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asap please guys!! Post your letter to the park ranger by creating a new message. Be sure your letter details your plan to control the python population. For more instruction on how to write your letter see the 02.01 Biological Interactions activity in the lesson.
asap 59 POINTS!
nitrogen gas is collected over water at a temperature of 50.0 oc. what is the partial pressure of the nitrogen gas if the total pressure is 800.0 mm hg?
The partial pressure of nitrogen gas if the total pressure is 800 mmHg when collected over water at a temperature of 50° Celcius is 707.5 mmHg
The partial pressure of water vapor at 50 ° Celcius is 92.5 mmHg
The total pressure is 800 mmHg.
Substituting this value in the formula:
[tex]P_{total}[/tex] = [tex]P_{nitrogen} + P_{water}[/tex]
800= [tex]P_{nitrogen}[/tex] + 92.5
[tex]P_{nitrogen}[/tex]= 800- 92.5
[tex]P_{nitrogen}[/tex]= 707.5 mmHg
When there is a combination of two or more gases in a given volume, the pressure created by each individual gas in the mixture is expressed using the phrase partial pressure. The partial pressures of the individual gases make up the total pressure of the gas combination. Ptotal = Pi = P1 + P2+P3+ Pn
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there are approximately how many separate chemical compounds, called cannabinoids, which have identified from cannabis resin?
More than 400 chemical components make up the complex plant known as cannabis, more than 60 of which are cannabinoid chemicals, some of which have antagonistic effects.
What are the cannabinoids derived from plant cannabinoids?Cannabinoid receptors are primarily found in the brain, and cannabinoids are a class of chemicals that interact with these receptors. Hallucinations may result from them, and an overdose may result in serious health issues. The Cannabis sativa plant's inflorescences are where one finds the naturally occurring cannabinoids.
There is no nitrogen in cannabinoids; instead, they include aromatic oxygenated hydrocarbons. The primary psychoactive effects of numerous pharmaceutical drugs are mostly attributed to the cannabinoid δ9-thc.
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to what volume should you dilute 0.200 l of a 15.0 m naoh solution to obtain a 3.00 m naoh solution?
It should be diluted to 1 litre from 0.2 litre.
What is molarity?
A solution is a chemical mixture of two or more substances in which neither substance changes chemically. For instance, salt water is a solution composed of water (the solvent) and salt (the solute). The concentration of a solution is the amount of dissolved ingredient. In other words, it refers to how much things has been blended into your beverage. Molarity is the standard unit of concentration.
The number of moles of a solute per litre of solution is referred to as molarity. We'd want to know how many moles of salt are in 1 litre of water if we wanted to determine the molarity of our saltwater solution.
Initially moles of NaOH = molarity * volume in litres
= 0.2 * 15 M = 3 moles
Now final molarity = 3 M
So volume = moles/ molarity of solution = 3/3 = 1 litre.
So it should be diluted to 1 litre from 0.2 litre.
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A liquid mixture containing 40.0 wt % n-octane and the balance n-decane flows into a tank mounted on a balance. The mass in kg indicated by the scale is plotted against time. The data fall on a straight line that passes through the points (t=3 min, m=150 kg) and (t=10 min, m=250 kg)
Gases consist of weakly bonded atoms with no long-range periodicity; gases expand to fill any available space. Liquids have properties intermediate between.
M_{per}=52.86
W_{per}=47.14
What is the liquid mixture?
liquid, in physics, one of the three principal states of matter, intermediate between gas and crystalline solid. The most obvious physical properties of a liquid are its retention of volume and its conformation to the shape of its container. When a liquid substance is poured into a vessel, it takes the shape of the vessel, and, as long as the substance stays in the liquid state, it will remain inside the vessel. Furthermore, when a liquid is poured from one vessel to another, it retains its volume (as long as there is no vaporization or change in temperature)First mixture:
40 wt% methanol=60 wt% water 200 kg
m_{met1}=200 kg * 0.4=80 kg
m_{wat1}=200 kg * 0.6=120 kg
Second mixture:
70 wt% methanol=30 wt% water 150 kg
m_{met2}=150 kg * 0.7=105 kg
m_{wat2}=150 kg * 0.3=45 kg
Final mixture:
m_{metF}=80 kg + 105 kg=185 kg
m_{watF}=120 kg + 45 = 165 kg
M_{per}=\frac{185 kg}{185 kg +165 kg}*100=52.86
W_{per}=\frac{165 kg}{185 kg +165 kg}*100=47.14
if,the compositions are constant,the only variables are the mass of each mixture used in the final one, So there can be only one independent balance.
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the experimental ionization energy of na is 3.49 ev. calculate the effective nuclear charge seen by the 3s valence electron.
The effective nuclear charge seen by the 3s valence electron is 2.5.
The effective nuclear charge can be can be calculated by the following formula :
Zeff = Z - s
where,
Z = atomic number
s = screening constant
The electronic configuration of Na i given as :
₁₁Na = (1s²) (2s² 2p⁶) ( 3s¹ )
screening constant cab be calculated as :
s = ( 0.35 ( no. of electrons remaining in nth shell) + 0.85 ( electrons in (n-1) + 1 ( no. of e;ectron in ( n-2 ) )
s = ( 0.35 ( 0) + 0.85 ( 8) + 1 ( 2)
s = 6.8
Zeff = 11 - 6.8
Zeff = 2.5
Thus, The effective nuclear charge seen by the 3s valence electron is 2.5.
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A colorimeter is an instrument used to measure the amount of _________ absorbed by a solution. This absorbance is proportional to the __________of the solute in solution.
A colorimeter is an instrument used to measure the amount of light absorbed by a solution. This absorbance is proportional to the concentration of the solute in solution.
A colorimeter is a photosensitive device used to measure the transmission and absorption of light through liquid samples. Colorimetric devices also measure the intensity or concentration of color produced when a particular reagent is introduced into a solution. The
colorimeter is based on his two basic laws of photometry.
Beer's Law: This law states that the amount of light absorbed is always proportional to the concentration of dissolved substances in solution.
Log10 Io/It = asC
where 'C' is the concentration of the solution and 'as' is the absorption index.
Lambert's law: A = log10 Io/It = asb ,
"as" is standard absorbance, "A" is test absorbance, "b" is solution thickness/length. The disappearance of transitions depends on two extrinsic assumptions. The absorbance is directly proportional to the concentration (c) of the sample solution used in the experiment. Absorbance is directly proportional to the optical path length (l).
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determine the strongest intermolecular force in pure samples of each of the following: a. h2o b. cf4 c. co2 d. ph3
Hydrogen bond in H2O is the strongest intermolecular force.
What is intermolecular force?
Intermolecular forces are those that form between a substance's molecules and have the ability to attract and repel one another. All the physical and chemical properties depend on the type of intermolecular force present in the matter.
Dipole-Dipole Interactions
Ion-Dipole Interactions
Ion Induced Dipole Interactions
Dipole Induced Dipole Interaction
Dispersion Forces or London Forces.
These above are the five types of Intermolecular forces-
The order of the Intermolecular forces where
Ion-dipole force is the strongest
Hydrogen bond
Dipole-dipole force
and dispersion force is the weakest.
Hence, the Hydrogen bond present in H2O is the strongest intermolecular force.
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The strongest intermolecular force is the hydrogen bond in water (H2O).
What is intermolecular force?
Intermolecular forces are those that develop between the molecules of a substance and can cause them to attract or repel one another. The type of intermolecular force that is present in the matter determines all of the material's physical and chemical properties.
Interactions between dipoles
Involvements of Ion-Dipoles
Dipole Interactions Induced by Ions
DID Interaction: Dipole Induced DID
London Forces or Dispersion Forces
These five intermolecular force types are listed above.
The intermolecular forces were in this order:
The strongest force is ion-dipole force.
the hydrogen bond
Force between dipoles
the least powerful is the dispersion force.
The strongest intermolecular force is therefore the hydrogen bond in H2O.
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A subunit of an organic compound that confers particular chemical and physical properties is termed.
A subunit of an organic compound that confers particular chemical and physical properties is termed, a functional group. Correct answer: letter C.
These groups are responsible for the reactivity of the molecule and the way it interacts with other molecules.
Importance of functional groups
Functional groups are important components of organic compounds. They are groups of atoms that are responsible for the unique physical and chemical properties of an organic compound. These properties, in turn, determine the behavior of a compound in a variety of reactions.
Functional groups are key to understanding why organic compounds behave the way they do. For example, an organic compound with a hydroxyl group (OH) is likely to react differently than one without it. As the hydroxyl group is responsible for the compound's behavior, it can be said that the hydroxyl group is a subunit of the organic compound that confers particular chemical and physical properties.
A subunit of an organic compound that confers particular chemical and physical properties is termed ________
A) A monomer.
B) An oligomer.
C) A functional group.
D) A synthetic unit.
E) An isomer.
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PLease help me with this simple question ASAP Thank you in advance :D
The period number tells you how many ____ the element has.
(This is related to the Periodic Table)
Again, Thank you for your help!
Answer:
Orbitals
Explanation:
Period number directly correlates to how many orbitals a given element has. For instance, Period 1 will have 1 orbital, whereas Period 7 will have 7 orbitals
what attraction holds individual covalent molecules trogether as a solid and how that leads to ower melting and boiling points
Then attraction holds individual covalent molecules together as a solid are the force that hold the atom together if the each atom nucleus for the shared pair of electrons. the covalent compounds have very low melting point and boiling point.
The covalent bond form between the atoms by the sharing of electron. when there is no much difference in electronegativity of the atoms then the electrons are equally shared between two atoms. the mutual sharing of electrons formed covalent bond . the compound is called as covalent compound or molecules. the molecules held by very weak intermolecular forces and it is very easy to break them . so, they have low melting point and boiling point.
Thus, Then attraction holds individual covalent molecules together as a solid are the force that hold the atom together if the each atom nucleus for the shared pair of electrons .the covalent compounds have very low melting point and boiling point.
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identify the kind of chemical catalysis and then identify which of the given amino acids can act as a catalyst for the reaction.
The kind of chemical catalysis is covalent catalysis and among the given amino acids lysine will act as a catalyst for the reaction.
The generation of iminium ions in the transition state of the reaction confirms that it is a covalent catalysis. lysine is the only amino acid that can catalyze the iminium ion generated in the transition state of the reaction.
So the answer for the type of catalysis is covalent catalysis, and the answer for the type of amino acid among the given amino acids that can catalyze the reaction is lysine.
Complete question: (Reaction is attached as a picture)
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Identify the dominant intermolecular force in ammonia (nh3). Given that ammonia is a gas at room temperature, what can you infer about the relative strengths of the intermolecular forces between ammonia molecules and between water molecules?.
The intermolecular interactions between water molecules are greater than those between ammonia molecules.
What conclusions may be drawn regarding the relative potency of the intermolecular interactions between ammonia and water molecules?In a certain state of matter, substances are bound together by intermolecular forces. Three different states of matter exist;
Solid, sLiquid, sGas .
The level of intermolecular contact between molecules is greatest when matter is solid. Liquid states have weaker intermolecular interactions, while gaseous states have the weakest intermolecular contacts.
Since ammonia is a gas at room temperature, its molecules interact with one another less strongly than those of water at the same temperature.
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Oxygen and chlorine gas are mixed in a container with partial pressures of 401 mmhg and 0. 639 atm, respectively. What is the total pressure inside the container (in atm)?.
The total pressure inside the container is 1.167 atm.
According to Dalton's law of partial pressures, the total pressure of a mixture of gases is equal to the sum of the partial pressures of each of the constituent of the gases. The partial pressure is defined as the pressure each gas would exert if it alone occupied the volume of the mixture at the same temperature.
we can calculate the contribution of different gases in a mixture to the total pressure. We refer to the pressure exerted by a specific gas in a mixture as its partial pressure. The partial pressure of a gas can generally be calculated using the ideal gas law.
According to daltons law of partial pressure
[tex]P_{total}[/tex] = [tex]P_{1}[/tex] + [tex]P_{2}[/tex]
we know that 760mm Hg is equal to 1atm
So, 401mm Hg will have = 401 ÷ 760 ⇒ 0.527 atm
Hence , [tex]P_{total}[/tex] = 0.527 + 0.639 ⇒ 1.166 atm
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There are 2 isotopes of gallium that occur naturally; 69Ga and 71Ga. The 69Ga atoms have a mass of 68.925581 amu and the 71Ga atoms have a mass of 70.924707 amu. What is the percent natural abundance for each isotope?
The percentage of 69Ga is 60% while that of 71Ga is 40%.
What is the percent abundance for each of the isotopes?We know that an element is composed of atoms that have different isotopes and the percentage abundance of each of the isotopes of the elements is not the same.
Let the percentage abundance of 69Ga be x and that of 71Ga be 1 -x. The relative atomic mass of gallium is obtained from;
69.723 = 68.925581x + 70.924707(1 - x)
69.723 = 68.925581x + 70.924707 - 70.924707 x
69.723 - 70.924707 = 68.925581x - 70.924707 x
-1.2 = -1.99x
x = 1.2/1.99
x = 0.60
Thus the percentage abundance of the 69Ga = 60% and that of 71Ga = 40%
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