The electron configuration of copper is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^10.
The electron configuration of an element (in this case; copper) illustrates how electrons are distributed in its atomic orbitals.
The atomic number of copper is 29 and it is a d-block element. According to the Aufbau principle, the electrons fill atomic orbitals of the lowest energy levels first, before filling the higher energy levels in the ground state of an atom or ion.
However, a completely filled d-shell is more stable naturally. Therefore, one electron from the 4s shell goes into the d-orbital so that the copper atom can attain stability.
As a result, when a copper atom loses an electron, it goes out from the 4s shell first.
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What elements will likely lose their electrons when ionic bond was formed?.
The nonmetal takes those electrons in order to become a negatively charged anion, whereas the metal gives up those electrons in order to become a positively charged cation. ionic bond formation time.
The main interaction present in ionic compounds is known as ionic bonding, which is a sort of chemical bonding involving the electrostatic attraction between two atoms with sharply differing electronegativities or between two oppositely charged ions. Along with covalent and metallic bonds, it is one of the most prevalent types of bonds. Ions are atoms, or collections of atoms, that have an electrical charge. Ions with a negative charge are produced by gaining electrons in atoms (called anions). Ions with a positive charge are created when atoms lose their electrons (called cations). Electrovalence, as opposed to covalence, is the name for this transfer of electrons. In the most basic scenario, the cation is a metal atom and the anion is a nonmetal atom. However, these ions can have more complex properties, such as molecular ions like NH+
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the cori cycle is a metabolic pathway that involves active muscles and the liver. in the liver, fatty acids react to form c o 2 and h 2 o, releasing a t p, and lactate uses the a t p to form glucose in a process called gluconeogenesis. the glucose moves to the muscles to form lactate, releasing a t p, a process called glycolysis. the lactate then moves from the muscles to the liver to complete the cycle. complete the sentences about the cori cycle. you are currently in a labeling module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. muscles break down into , which undergoes glycolysis. the end product of glycolysis in active muscles is , which is transported in the blood. the liver uses energy from to drive . the produced in the liver is transported to the muscle in the bloodstream. answer bank
The muscles break down glycogen into glucose which undergoes glycolysis . the end product of glycolysis in active muscles is lactate, which is transported in the blood. the liver uses energy from fally acid oxidation drive glucose. the glucose produced in the liver is transported to muscle in the bloodstream.
muscles breaks into glycogen and glucose. the lactate is always the end product in glycolysis. by the fally acid oxidation liver uses energy. the cori cycle is the metabolic pathway which involves the active muscles and the liver. so, the fatty acid will react and it forms the carbon dioxide and the water.
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the ionization energy of o2 is 1205 kj/mol . what is the maximum wavelength of light capable of casuing the ionizaiton of o2
A light source's maximum wavelength at which o2 can ionize is 99.39nm.
How is calculated to maximum wavelength?The energy difference between these two energy levels is equal to the energy needed for this transformation. The data can be studied and displayed to find the wavelength of greatest extinction. As a result, the wavelength of light needed to excite the pi electrons to their first excited state is 43.948 nm.Calculation:-O2 has a 1205 kJ ionization energy.
Energy = hv
= h light's wavelength/velocity
wavelength = (1205000 3 108) /6.626 1034
99.39 nm is the wavelength.
He is symbolized by the highest ionization energy. The outermost shell has a high ionization energy, is stable, and does not frequently become unstable due to electron loss. Ionization can be induced by waves with energies greater than 134 nm. 225nm light lacks the energy to ionize gold because it is greater than 134nm.To Learn more about maximum wavelength refer to:
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classify each compound as an ionic compound or a molecular compound. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. ionic compounds molecular compounds
Each compound as an ionic compound or a molecular compound :
CO₂ : molecular compound
NaBr : ionic compound
FeCl₃ : ionic compound
CH₄ : molecular compound.
The ionic compounds are those which are formed by the positively charged cation and the negatively charged anion with ionic bond and the complete transfer of electrons take place. the molecular compounds are those which are formed by the sharing of electrons. CO₂ : molecular compound. NaBr : ionic compound. FeCl₃ : ionic compound. CH₄ : molecular compound.
Thus, Each compound as an ionic compound or a molecular compound :
CO₂ : molecular compound
NaBr : ionic compound
FeCl₃ : ionic compound
CH₄ : molecular compound.
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suppose of sodium nitrate is dissolved in of a aqueous solution of ammonium sulfate. calculate the final molarity of nitrate anion in the solution. you can assume the volume of the solution doesn't change when the sodium nitrate is dissolved in it. be sure your answer has the correct number of significant digits.
Ammonium ion molarity is equal to (0.03224/0.2) = 0.1612 mol/L or 0.16 M.
Is sulfate of ammonium hazardous to people?Breathing in ferrous ammonium can have negative effects on you. Inhaling ferrous ammonia can upset the nose and throat, which can lead to coughing and wheezing. Contact can sting the skin and eyes. High exposure may result in sleepiness, nausea, vomiting, diarrhea, and stomach pain.
Briefing2NH₄NO₃ + Na₂CrO₄ → (NH₄)₂CrO₄ + 2NaNO₃
We first convert the given parameters to number of moles
Number of moles = (Mass/Molar mass)
Molar mass of NH₄NO₃ = 80.043 g/mol
Number of moles of NH₄NO₃ = (2.59/80.043) = 0.03224 mole
Number of moles = (Concentration in mol/L) × (Volume in L)
Number of moles of Na₂CrO₄ = 0.4 × 0.2 = 0.08 Mole
2 moles of NH₄NO₃ react with 1 mole of Na₂CrO₄
So, it it evident that NH₄NO₃ is the limiting reagent as it is in short supply in the amount needed for the reaction.
So, the number of moles of ammonium ion in the product is also 0.03224 mole.
Molarity = (Number of moles)/(Volume L)
Molarity of ammonium ion = (0.03224/0.2) = 0.1612 mol/L = 0.16 M.
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Is Na and O ionic or covalent?.
Because it has a metal cation and a non-metal anion, sodium oxide is a binary ionic compound.
Describe non-metal anion.Non-metals are substances with a propensity to pick up electrons during chemical processes to generate anions. These are strong ionizing elements that are electronegative. They lack luster, are fragile, and have poor conductivity for both heat and power (except graphite). Gases, liquids, or solids can all be non-metals.
Exist non-metal cations?Because of their high ionization energy, nonmetals do not normally form monatomic positive ions (cations) during chemical reactions. Examples of anions include the chloride ion, Cl-, the nitride ion, N3-, and the selenide ion, Se2-, which are all monatomic nonmetal ions.
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Is the safety flame yellow?.
Yes the yellow flame is called as the safety flame.
The yellow flame are called as the safety flame and its is the coolest Bunsen flame because the air hole is covered and the oxygen will burn is less with the gas that's means that the flame is not efficiently burn. an the hottest Bunsen flame is considered is the blue flame because the air hole hole is uncovered and the oxygen burn is more with the gas that means it is efficiently burn. the yellow flame is the safest flame.
Thus, Yes the yellow flame is called as the safety flame.
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the carbon canisters are about the size of a 55-gallon drum, how often would replacement be required?
Drums made of carbon steel have proven to be a reliable and powerful container for storage and transportation. They are available in open and tight head configurations, sizes ranging from 5-110 gallons, and the workhorse 55 Gallon Drum.
What is about 55 Gallon Drum?Drums made of carbon steel have proven to be a reliable and powerful container for storage and transportation. They are available in open and tight head configurations, sizes ranging from 5-110 gallons, and the workhorse 55 Gallon Drum. They are suitable for packing a range of goods, including hazardous compounds. All carbon steel drums are made of carbon steel that meets ASTM standards.The 42 carbon steel barrels that conform to industry standards are given below. They are extremely durable, thicker, heavier, and stronger than what industry standards call for. Any of our carbon steel drum designs are completely customizable by our in-house engineering department. To meet your specific needs and size requirements, ask about carbon steel drums that are specially built.To learn more about 55 Gallon Drum refer to:
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Does calcium and oxygen form an ionic bond?.
Calcium oxide, also known as CaO, is the chemical substance created when calcium and oxygen combine. Because their atoms have so many valence electrons, calcium and oxygen are able to create an ionic bond.
What is the structure of the valence electrons?For neutral atoms, the valence electron corresponds to the main group number. The main group number of an element in the periodic table can be found by looking at its column. For instance, the group 4 member carbon contains four valence electrons.
What does the valence of an element mean?In chemistry, an element's valence, also known as valency, determines how many other molecules of the same element each atom may interact with. The expression, which was used in 1868, is intended to convey an element's wide range of possible combinations as well as its numerical value.
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chemical labels are required to disclose disposal information alongside cautions and directions for use. true false
A hazardous chemical's labels must have the following information: Name, Address, and Telephone Number; Product Identifier; Signal Word; Hazard Statement(s); and Precautionary Statement (s) Pictogram (s) The label may read, Do not breathe vapors or spray.
What are the requirements for chemical labels?For everybody who comes into contact with the chemical that is labeled, each label will offer useful information. A chemical's hazards are described in the hazard statement. The user will be informed as to the risk level, for example, "Contact with the skin can cause cancer." On the label, this must be clearly visible.The warning label will explain and outline the precautions that must be taken by the user to avoid or reduce the risks of the chemical. There are four categories of precautionary statements:ResponsePreventionStorageDisposalThe contact information is crucial because it contains details about the chemical's maker. The data that's going to be shown is the;NameAddressTelephone numberTo Learn more About chemical's labels refer to:
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Construct a three‑step synthesis of trans‑2‑pentene or trans-pent‑2‑ene from acetylene by dragging the appropriate formulas into the bins. Note that each bin will hold only one item, and not all of the given reagents or structures will be used.
Synthesis of trans-2-pentene from acetylene is given below.
When sodium acetylides and haloalkanes react, a higher order terminal alkyne is produced. From terminal to nonterminal alkyne formation. Trans-pent - 2-pentene is created through reduction. Trans-pent-2-yne is produced from ethyne primarily by a three-step process that includes the interaction of haloalkane with sodium acetylides to produce higher order terminal alkynes.
The second phase further alkylates terminal alkynes to higher order nonterminal alkynes, while the third step uses a dissolving reduction technique to produce trans-2-ene.A colorless gas with a light garlic-like smell is what acetylene appears to be. Air is heavier than gas. Flame can very easily return to the leak's origin.
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What do you call the main subject of the text that can be stated in one or two words?.
The main subject of the text is known as the topic. It can be stated in one or two words and is typically the main focus or idea of the text.
The topic of a subject refers to the main idea or focus of a text, speech, or lesson. It is the main point around which the rest of the text, speech, or lesson is based. The topic is intended to inform the reader, listener, or student of the main point of the text, speech, or lesson.
In most cases, the topic of a text, speech, or lesson is the same as the title of the work. For example, if the title of a text is “The Impact of Climate Change on Animals,” then the topic of the text is the impact of climate change on animals. However, the topic can also be implied or inferred from the text. For example, if the title of a text is “The Causes and Effects of Global Warming,” the topic of the text might be inferred to be the causes and effects of global warming.
There are several techniques that can be used to identify the topic of a text, speech, or lesson. One of the most common techniques is to look for the topic sentence. The topic sentence is the first sentence of the text, speech, or lesson and it typically states the topic of the work. For example, in the text “The Impact of Climate Change on Animals,” the topic sentence might be “Climate change has had a profound effect on the lives of animals.”
Another technique is to look for keywords or phrases that appear throughout the text. For example, if the text “The Causes and Effects of Global Warming” mentions “greenhouse gases,” “temperature rise,” and “melting ice caps,” it is likely that the topic of the text is the causes and effects of global warming.
Finally, it is also possible to identify the topic of a text, speech, or lesson by looking at the structure of the work. For example, if the text is organized into sections that discuss different aspects of climate change, then it is likely that the overall topic of the text is climate change.
In conclusion, the topic of a text, speech, or lesson is the main idea or focus of the work. The topic can usually be identified by looking for the topic sentence, keywords or phrases, or the structure of the work.
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if there is a decrease in the ph of the ecf, which direction will the k ions move?
Surely, when there is a decrease in the pH of the extracellular fluid; ecf, the direction will the k ions move from the intracellular fluid (icf) to the extracellular fluid (ecf).
How ions moves from intracellular fluid to extracellular fluid upon lowering the pH of extracellular fluidThe ions of intracellular fluid usually, frequently and most of the time often migrate to the extracellular fluid when there is a decrease in pH of ECF simply because the fluid contains more of hydrogen ions. In order words, this migrations of ions from the icf to ecf happens when the ecf fluid is more acidic.
In conclusion, we can now confirm and deduce from all said and done from the explanation above that the dropping of the pH level of ECF leads to the movement of ions from the icf to the ecf.
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Starting with acetylene, show the reagents you would use to prepare the following compound: 2,7-dimethyl-4-octyne 1) NaNH2 2) Br 1) NaNH2 2) Br 3) NaNH2 4) Br 1) NaNH2 2) Br 3) NaNH2 4) EtBr 1) NaNH2 2) EtBr 3) NaNH2 4) Br
The liquid form of 1-octene has no color. Flashpoint of 70 °F. Less dense (at about 6 lb/gal) and insoluble in water than water, as a result, floats on water.
Having the chemical formula CH2CHC6H13, 1-octene is an organic compound. The double bond in the alkene is in the alpha (primary) position, making the compound more reactive and giving it useful chemical properties. The alkene is also referred to as a higher olefin and alpha-olefin.
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Which of the following are released from neurosecretory cells in the adrenal medulla as a result of sympathetic innervation? Check all that apply.
Epinephrine
ACh
Norepinephrine
ACTH
Epinephrine
Norepinephrine
Epinephrine and Norepinephrine of the following are released from neurosecretory cells in the adrenal medulla as a result of sympathetic innervation.
What does sympathetic innervation cause?The ability of your sympathetic nerves to react to risky or stressful conditions is its most well-known function. When this happens, your nervous system's sympathetic system kicks in to help you escape danger by increasing your heart rate, pumping more blood to regions of your body needing it, and other responses.
What effects on the heart does sympathetic innervation have?Cardiovascular consequences of the sympathetic nervous (SNS) include heart rate acceleration, maximum cardiac contractility, decreased arterial capacitance, and peripheral vascular resistance.
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Albuterol is a sympathomimetic drug that binds to beta‐2 adrenergic receptors suggesting that.
Adenyl cyclase is activated by albuterol, which increases cyclic-3', 5'-adenosine monophosphate (cAMP) in the cells and -2 adrenergic receptors on airway smooth muscles.
What are adrenergic receptors?Adrenergic receptor is defined as the proteins that are membrane-bound and mediate the central and peripheral effects of norepinephrine and epinephrine. Adrenergic receptors are cell surface receptors that become active when they contact a particular class of neurotransmitter known as a catecholamine.
By soothing the smooth muscles in the bronchi, beta2 agonists treat reversible bronchospasm. These medications, which have bronchodilator properties, are used to treat acute asthmatic bouts of bronchospasm as well as to prevent it from happening in cases of exercise-induced asthma or nocturnal asthma.
Thus, Adenyl cyclase is activated by albuterol, which increases cyclic-3', 5'-adenosine monophosphate (cAMP) in the cells and -2 adrenergic receptors on airway smooth muscles.
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5 x 10^8- standard notation
Answer:
5e-8 (500,000,000)
Explanation:
The scientific notation 5e-8 is same as 5 x 10^-8 or 5 x 10 -8. Thus, to get the answer to 5e-8 as a decimal, we multiply 5 by 10 to the power of -8. = 5e-8.
Answer:
5 x 10^8 = 500,000,000
Explanation:
You are going to have to type this equation into a calculator, because it might take way too long to do it on paper. But if you happen to do it on paper for no reason, this is how you would do it:
You are going to take the 10, and add 0 to it 8 different times:
10, 100, 1,000, 10,000, 100,000, 1,000,000, 10,000,000 100,000,000.
Then, you multiply 100,000,000 by 5:
100,000,000 x 5 = 500,000,000.
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what will potassium hydroxide react with? select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer. a hydrochloric acid b the round bottom flask c 2-bromo-2-methylbutane d 1-propanol
Potassium hydroxide will react with a) hydrochloric acid
To disinfect surfaces, skin, and hands, use potassium hydroxide. The inorganic substance potassium hydroxide, sometimes referred to as lye, has the chemical formula KOH. Hydrochloric acid, also referred to as muriatic acid, is an aqueous solution of hydrogen chloride. It is a colorless solution with an overpowering odor. Strong acid is how it is categorized. It is a part of the stomach acid in most animal species' digestive systems, including humans.In the food, textile, metal, and rubber sectors, hydrochloric acid (HCl) is frequently used to neutralize alkaline chemicals and as a bleaching agent. If discharged into the soil, it is neutralized, and water exposure causes it to hydrolyze quickly.
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What are 4 things a fire safety plan should include?.
Some of the four things that the fire safety plan should include are fire extinguishers, alarm points, smoke detectors, first aid boxes etc.
A fire safety plan is a detailed document that generally covers all aspects of fire safety for a specific building or any property. The plan will outline:
A safe and orderly way for the occupants to evacuate the building. Proper maintenance and also housekeeping required to prevent fires. Methods of control that usually minimize the damage from fires when they do occur.
Fire safety plans should provide the employees or building occupants with the instructions that they need to leave the building or respond as appropriate in the event of a fire.
Along with that it should include, prepare procedures for evacuation and response, Include building plans marked for fire exits, fire extinguishers, alarm points, smoke detectors, first aid boxes, main electrical panel, main water supply, evacuation routes, etc.
Methods required to prevent fires like storage of items, etc.
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What formula would produce value in cell C25?.
The formula that would produce value in cell C25 is to type =C4+C7+I10+L12 .
What makes Excel so crucial?Users of Microsoft Excel are able to see trends and classify data into useful groups. In order to help businesses better understand the composition and activities of their workforce, Excel also performs human resources tasks like categorizing hours worked and organizing employee profiles and expenses.
A formula in Microsoft Excel is an expression that manipulates cell values. Even when there is an error, these formulas nonetheless provide a result. Calculations like addition, subtraction, multiplication, and division can be done using Excel formulas.
Therefore, Note that In cell C25, enter after typing =C4+C7+I10+L12. The final budget is the sum of the allocated funds for each assignment (BAC).
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Based on the standard EMF series and your knowledge of half-reactions, determine the cell potential and spontaneity of a cell that consists of a pure cobalt electrode in a solution of Co?" ions; the other half is a lead electrode immersed in a Ni2+ solution. PT + 7 Pb Sn + 2S N. + 2 Ni Co + 2 Co -0.126 -0.136 -0.250 -0.277 +0.027V, spontaneous -0.027 V, nonspontaneous +0.527, spontaneous -0.527, nonspontaneous
Oxidation Reaction is not same as the Reduction,we need to change sign of ( Ev ) as well as Lies and RHS as shown cell potential =+ 0.027 V
cell potential = ( Ev ) Red" + ( Ev )oxidation
=- 0250 + 0.277
=+ 0.027 V
The potential differential between the two electrodes of an electrochemical cell, which develops when electrons are sent via the external circuit of a cell that has not reached equilibrium, is known as the cell potential. A voltaic cell's electrical potential is a measurement of its capacity to generate an electric current. Typically, electrical potential is expressed in volts (V). The electrical potential difference between the two half-cells determines the voltage that a specific voltaic cell will generate.
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Generating hydrogen from water or methane is energy intensive. A non-natural enzymatic process has been developed that produces12 moles of hydrogen per mole of glucose by the reaction:CgH12O6(aq)+6H2O(l)-> 12H2(g)+6cO2(g)What volume of hydrogen could be produced from 256g of glucose at STP?
Volume of hydrogen could be produced from 256g of glucose at STP is 381.69 L.
The balanced reaction is given as :
C₆H₁₂O₆ + 6H₂O ----> 12H₂ + 6CO₂
moles of H₂ = 12 mol
mass of glucose = 256 g
moles of glucose = mass / molar
= 256 / 180.16
= 1.42 mol
1 mole of glucose = 12 mole of H₂
1.42 moles = 12 × 1.42 = 17.04 mol
1 mole of an ideal gas at STP is 22.4 L
volume = 17.04 × 22.4 = 381.69 L
Thus, Generating hydrogen from water or methane is energy intensive. A non-natural enzymatic process has been developed that produces12 moles of hydrogen per mole of glucose by the reaction. Volume of hydrogen could be produced from 256g of glucose at STP is 381.69 L.
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The table below shows the boiling points of some halogens.
Halogen
Boiling point in °C
Bromine
60
Chlorine
−34
Fluorine
−188
Explain the trend in the boiling points of the halogens.
The boiling point of halogens increases down the family.
Explanation:Boiling Point
Boiling point has multiple factors, but for the purposes of this question, the main factor is IMFs. IMFs are intermolecular forces. IMFs are the attractions that occur between the atoms or molecules of a sample. The stronger the IMFs, the higher the boiling point. This is because strong IMFs hold the molecules together, so it takes more energy to break the attractive forces.
Polarizability
Pure halogens are always non-polar. This means that there are no dipoles or other forms of permanent electron shifts. Since all halogens are nonpolar, there is only one type of IMF: London Dispersion Forces. LDFs are the attractive forces caused by the temporary and random shifts of electron clouds. All molecules experience LDFs. However, LDFs have varying strengths. The larger the molecule, the stronger the LDF. This is due to polarizability. Polarizability is the ease with which electron clouds can shift. Bigger molecules have larger electron clouds, hence the higher polarizability and stronger LDFs.
Since halogens further down the table are larger, both in atomic radius and electron cloud, they have higher polarizability. This leads to stronger LDFs and IMFs. As stated in the first paragraph, strong IMFs cause higher boiling points. This is why larger molecules like Bromine have higher boiling points than small molecules like Fluorine.
agno3(aq)agno3(aq) and naf(aq)naf(aq) express your answer as a chemical equation. identify all of the phases in your answer. enter noreaction if no precipitate is formed
The reaction between silver nitrate and sodium fluoride produces silver fluoride precipitate and aqueous sodium nitrate as written below:
[tex]\rm Ag NO_{3} (aq) + NaF (aq) \rightarrow AgF (s) + NaNO_{3} (aq)[/tex]
What is displacement reactions?Displacement reaction is a type of reaction in which a group or atom in a reactant is displaced by another group. There are single displacement reaction and double displacement reaction.
In single displacement reaction, one group is replaced by the other group of reagent and in double displacement reactions, two groups are interchanged between two reactants.
The reaction of AgNO₃ and NaF is a double displacement reaction in which nitrate and F displaces to the other metal and producing the precipitate of AgF as written in the reaction.
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What types of materials are best for preventing heat transfer through radiation?.
Answer:
Insulation helps to prevent that transfer of heat. Many different materials are used for insulation. Engineers often use fiberglass, wool, cotton, paper (wood cellulose), straw and various types of foams to insulate buildings. A layer of trapped air can serve as insulation, too!
Explanation:
Answer:
insulators
Explanation:
radiation insulators are materials with a high resistivity (resistivity is a property of the material) so they can make objects with high resistance. This allows insulators to prevent heat from escaping.
Which element has the largest atomic radius?
A O
B) Cs
C Ba
D)Br
Predict the molecular geometries of the following species, respectively: SeO3, BrO31�, ClF21+.
A. trigonal planar, trigonal pyramidal, bent
B. linear, trigonal planar, bent
C. trigonal planar, T-shaped, bent
D. trigonal pyramidal, trigonal planar, linear
E. tetrahedral, see-saw, linear
The molecular geometries of SeO3, BrO31 , ClF21+ will be trigonal planar, trigonal pyramidal, bent.
Molecular geometry would be the configuration of atoms within a molecule, typically in relation to a single central atom. Electron geometry would be the configuration of electron pairs together surrounding the central atom.
The molecular geometry of the given molecule is:
SeO3 = trigonal planar
BrO3= trigonal pyramidal
ClF21+. = bent
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What are the 10 fire safety rules?.
The 10 fire safety rules are :
1. Installation of smoke alarms
2. Prepare your fire escape
3. Pay Attention to Smokers
4. Cook With Care
5. Leave Room for Space Heaters
6. Matches and lighters are not toys; they are tools.
7. Drop, Stop, and Roll
8. Use electricity sensibly.
9. Get Low in the Smoke
10. Install sprinkler systems in your home
Fire safety lowers the possibility of injuries and building damage that can result from fires. It is essential to everyone's safety who may be inside the building during a fire emergency to develop and implement fire safety measures in the workplace.
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32 is a radioactive isotope with a half-life of 14.3 days. if you currently have 24.9 g of p32, how much p32 was present 9.00 days ago?
38.52 g of phosphorus-32 was present 9.00 days ago if it has a half-life of 14.3 days
As the half-life of phosphorus-32 is 14.3 days and the remaining amount is given to be 24.9 g and we need to determine the amount present 9 days ago therefore we first determine the number of half-lives that have elapsed as follows;
n = time ÷ half-life
n = 9/14.3
Finally, we can calculate the amount of the radioactive isotope that was available 9 days ago
Amount remaining (N) = 24.9 g
Number of half-lives (n) = 9/14.3
N₀ = 2ⁿ × N
N₀ = 2^(9/14.3) × 24.9
N₀ = 38.52 g
Hence the amount present 9 days ago is calculated to be 38.52 g
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the (fill the blank) division of the peripheral nervous system brings sensory information to the central nervous system.
The afferent division of the peripheral nervous system brings sensory information to the central nervous system.
What Is the Nervous System ?The brain, spinal cord, and a sophisticated nerve network are all parts of the nervous system. The brain and the body are communicated with via this system. All bodily functions are managed by the brain.According to the classical doctrine of the nervous system, an animal's nervous system is a highly sophisticated component that coordinates its movements and sensory data by sending and receiving signals to and from various regions of its body.The nervous system notices bodily-impacting environmental changes, and then collaborates with the endocrine system to react to such occurrences. Around 550–600 million years ago, worm-like invertebrates were the first to develop nervous tissue. However, recent research on the existence and usage of electrical impulses in plants has cast doubt on this conventional wisdom.To learn more about Nervous System refer :
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