The half - life (in mins) of the N₂O₅ If it is decomposes with the rate constant of 5.7 × 10⁻⁴ s⁻¹ is 20 min.
The rate constant for the reaction is given as :
The rate constant = 5.7 × 10⁻⁴ s⁻¹
The half - life expression is given as :
The half - life, t 1/2 = 0.693 / k
where,
k = 5.7 × 10⁻⁴ s⁻¹
The half - life, t 1/2 = 0.693 / 5.7 × 10⁻⁴ s⁻¹
The half - life, t 1/2 = 1.2 × 10³ s
The half - life, t 1/2 = 20 min
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Which best describes a system made up of ice, water and steam existing together?
a. absolute zero
b. triple point
c. ice point
d. steam point
Answer:
The correct answer is B. Triple Point.
Explanation:
The triple point is the temperature and pressure at which all three phases of a substance (in this case: ice, water, and steam) coexist in equilibrium. At the triple point, the temperature and pressure are precisely defined, and any change in either will cause the system to shift towards one of the three phases. This is in contrast to the other points, such as the ice point or steam point, which only pertain to a single phase.
A system made up of ice, water and steam existing together is described as the "triple point".
The triple point is a specific temperature and pressure at which the three phases of a substance (in this case, ice, water, and steam) can coexist in a stable state. At this point, the solid, liquid, and gaseous phases are in equilibrium, and a change in temperature or pressure will cause the substance to change phase.
Therefore, the answer is B) Triple point.
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What is the concentration of a solution made by diluting 5mL of a 0.250m stock is to a volume of 30mL
Answer: 0.04167m
Explanation:
By using M1V1=M2V2
Let M1 = 0.250m
M2 = x
V1 = 5mL
V2 =30mL
(0.250)(5) = (M2)(30)
M2 = 0.04167m
The electron configuration for magnesium is 1s2 2s2 2p6 3s2. What is the distribution of electrons in the electron shells of a magnesium atom?
The electron distribution in the electron shells of the magnesium atom is given as: 2, 8 , 2 when the electron configuration for magnesium is 1[tex]x^{2}[/tex]
2[tex]s^{2}[/tex] 2p[tex]p^{6}[/tex] 3[tex]s^{2}[/tex].
How the disrtibution of electrons happens for magnesium?
Electron distribution in a Magnesium atom's electron shells:
The electron configuration of magnesium is given by the number of electrons in the magnesium atom, which is 12 electrons.The first two electrons have been introduced into the orbital, which can hold two electrons.The further two electrons moves on to the 2s orbitals of magnesium.The following six electrons will enter an 2p orbital that can hold up to six electrons.The remaining two electrons can then be placed in the 3s subshell.As a result, the electron distribution in the electron shells of the magnesium atom is given as: 2, 8, 2.
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which ratio would be used to determine how many moles of hydrogen chloride are produced by reacting 2.3 mol of chlorine in excess hydrogen? h2 cl2  2hcl
The ratio is used is 1 : 2. The number of moles of hydrogen chloride are produced by reacting 2.3 mol of chlorine in excess hydrogen is 4.6 mol.
The balanced chemical equation is :
H₂ + Cl₂ ----> 2HCl
The moles of the chlorine = 2.3 mol
The number of moles = mass / molar mass
It is clear from the balanced equation is the mole ratio is as follows :
Cl₂ : HCl
1 : 2
1 mole of the Cl₂ produces the 2 mole of the HCl
Moles of the HCl = 2 × 2.3
The moles of the HCl = 4.6 mol
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give a systematic name for the following formula: [cr(nh3)6][cr(cn)6]
So, the complex compound's IUPAC name will be hexaamminechromium (III) trioxalatocobaltate (III)
What is the [CO NH3 6 Cr CN 6] compound's coordination isomer?Which sort of isomerism is represented by the comlexes [Co(NH 3) 6] [Cr(CN) 6] and [Cr(NH 3) 6] [Cr(CN) 6]? Solution: The coordination compound displays coordination isomerims when both the cation and anion are complex ions. The instances provided are thus examples of coordination isomerism.
Does Cr NH3 6 Co CN 6 constitute a Coordination Complex compound?The complexes [Cr(NH3)6][Co(CN)6] and [Cr(NH3)6][Co(CN)6] are instances of coordination isomerism. Only in complexes where both the cation and the anion are complexes does this isomerism occur. A ligand exchange between a cation and an anion is what causes it to happen.
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What are the three types of atomic structure?
Atoms are comprised of 3 types of particles called subatomic particles: positively charged protons, negatively charged electrons, and neutrons, which have no charge
1. Nucleus: The center of the atom, composed of protons and neutrons.
2. Electron Shells: The outermost region of an atom, made up of electrons orbiting the nucleus.
3. Electron Cloud: A fuzzy region surrounding the nucleus, where the electrons are likely to be found.
What is neutron?
Neutron is an uncharged subatomic particle that is found in the nucleus of an atom. It has a mass slightly greater than that of a proton and is one of the two main constituents of the nucleus of an atom. Neutrons are important in nuclear chemistry, as they are responsible for the stability of the nucleus and the binding of protons and neutrons together in the nucleus.
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Name the following compound: 2-ethyl-4-methylheptene 3,5-dimethyl-2-octene 2-ethyl-4-methylheptane 3-methyl-5-propyl-2-hexene
3,5-dimethyl-2-octene
Describe the structure of 3,5-dimethyl-2-octene?Based on which parent chain has the largest value, it will be selected. If we count in this instance from top to bottom, we'll receive seven carbons, but if we start counting from the second carbon and go left and then down, we'll get eight carbons. Thus, octane is the parent chain. The methyl groups are found on carbons 3 and 5, whereas the double bond is situated at the second carbon. Since there are two methyl groups present, we prefix methyl with di- to denote the presence of two methyl groups.The functional group must be given priority and must be included in the parent chain. The double bond serves as the functional group in this instance. (alkene)
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According to the question the compound name is 3,5-dimethyl-2-octene
Describe the structure of 3,5-dimethyl-2-octene?Based on which parent chain has the largest value, it will be selected. If we count in this instance from top to bottom, we'll receive seven carbons, but if we start counting from the second carbon and go left and then down, we'll get eight carbons. Thus, octane is the parent chain. The methyl groups are found on carbons 3 and 5, whereas the double bond is situated at the second carbon. Since there are two methyl groups present, we prefix methyl with di- to denote the presence of two methyl groups. The functional group must be given priority and must be included in the parent chain. The double bond serves as the functional group in this instance. (alkene)
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in a lewis structure that contains a polar covalent bond, how do you demonstrate which atom in a bond has the highest electronegativity?
In a Lewis structure that contains a polar covalent bond, the atom with the highest electronegativity will be the one with the partial negative charge.
The electronegativity of an atom determines the degree to which it attracts electrons towards itself within a chemical bond. When two atoms of different electronegativities form a bond, the electron density will be skewed towards the atom with the higher electronegativity, resulting in a partial negative charge on that atom.
To demonstrate which atom in a bond has the highest electronegativity, you can use electronegativity values found in periodic tables, and compare the electronegativity of the two atoms involved in the bond. The atom with the higher electronegativity will be assigned a partial negative charge (-) in the Lewis structure, and the atom with the lower electronegativity will be assigned a partial positive charge (+).
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how many gold atoms are contained in 3.75 moles of gold?
The number of the gold atoms are contained in the 3.75 moles of the gold is 2.25 × 10²³ atoms.
The number of the moles of the gold = 3.75 mol
1 mole of the substance = 6.022 × 10²³ atoms
The 6.022 × 10²³ is called as the Avogadro number. So, the Avogadro number equals to the 1 mole of the substance.
The number of the atoms of gold is as follows :
The number of atoms of gold = 3.75 × 6.022 × 10²³ atoms
The number of atoms of gold = 22.58 × 10²³ atoms
The number of atoms of gold = 2.25 × 10²³ atoms
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The direct transfer of phosphate between substrates is called?
The direct transfer of phosphate between substrates is called substrate-level phosphorylation.
Substrate-Level Phosphorylation: The Direct Transfer of Phosphate Between SubstratesThis type of reaction occurs when a phosphate group is transferred from a donor molecule to ADP to form ATP. This process is catalyzed by enzymes such as pyruvate kinase and glyceraldehyde 3-phosphate dehydrogenase, which use the energy from the donor molecule to facilitate the transfer.
Substrate-level phosphorylation is a key component of metabolic pathways, such as glycolysis and the citric acid cycle. Substrate-level phosphorylation reactions are important because they generate high-energy compounds like ATP, which can be used to power cellular activities.
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a 0.02 m solution of lactic acid (pka = 3.86) is mixed with an equal volume of a 0.05 m solution of sodium lactate. what is the ph of the final solution?
A 0.02 M solution of the lactic acid (pka = 3.86) is mixed with an equal volume of the 0.05 M solution of sodium lactate. The pH of the final solution is 4.25.
The Henderson- Hasselbalch equation for pH of the buffer solution as follows :
pH = pKa+log[base]/[acid]
Where ,
Ka = the dissociation constant of the acid.
pKa = 3.86
The concentration of acid = [acid] = 0.02 M
The concentration of base = [base] = 0.05 M
pH = 3.86 + log(0.05/0.02)
pH = 3.86 + log 2.5
pH = 3.86 + 0.39
pH = 4.25
Thus , the pH is 4.25.
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what is the hydronium ion [h3o ] concentration of a solution with a ph of 6 ?
The hydronium io [H₃O⁺] concentration of the solution with the pH of the 6 is 1.0 × 10⁻⁶ M.
The pH expression is as follows :
pH = - log [H₃O⁺]
where, the pH = 6
The Potential of the hydrogen, is the scale used to define the acidity or the basicity of an aqueous solution.
By solving the value , we get :
pH = - log [H₃O⁺]
Where
The value of the pH = 6
6 = - log [H₃O⁺]
[H₃O⁺] = 10⁻⁶ M
[H₃O⁺] = 1.0 × 10⁻⁶ M
Thus, the hydronium ion [H₃O⁺] concentration is 1.0 × 10⁻⁶ M in the solution with the pH of the value 6.
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the delivery of the oligo (mrna) in pfizer and moderna
The delivery of the mRNA in Pfizer and Moderna's COVID-19 vaccines uses a technology called messenger RNA (mRNA) technology.
In the case of Pfizer and Moderna, the mRNA serves as a blueprint for the body's cells to produce the spike protein found on the surface of the SARS-CoV-2 virus, which causes COVID-19. The immune system then recognizes the spike protein as foreign and generates an immune response, producing antibodies against the virus.
The mRNA in the Pfizer and Moderna vaccines is delivered using a lipid nanoparticle formulation, which helps to protect the mRNA from degradation and enables it to be taken up by cells in the body.
In summary, the delivery of the mRNA in Pfizer and Moderna's COVID-19 vaccines uses mRNA technology, in which the mRNA serves as a blueprint for the body's cells to produce the spike protein of the virus, and is delivered using a lipid nanoparticle formulation.
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How do large bodies of water exchange thermal energy with air masses and nearby land?
Answer: When water molecules are heated up, they exchange freely with the air in a process called evaporation.
Explanation:
The ocean water is constantly evaporating, increasing the temperature and humidity of the surronding air to form rain and storms that are then carried by trade winds. hope this helps<3
Select the Ocean Basemap (Esri) from the Basemap drop-down menu at the top right. Also select the Regional Bathymetric Contours from the Options drop-down menu. Locate the divergent boundary that runs between the continents of South America and Africa. This boundary is known as the Mid-Atlantic Ridge.
Explore this boundary in the location where the two continents are closest, and zoom in until you can easily read the contour lines on the topographic map. Note that the numbers on the contour lines represent the depth of the ocean floor and are always positive. For example, 7,000 meters is deeper than 3,000 meters. Place your cursor or mouse in various locations along the plate boundary, and read the elevation in the map key at the bottom left. The elevation numbers can be negative, unlike the contour lines, so they will become more negative as the sea floor becomes deeper.
Gather information along this boundary and describe how the divergent motion of theses tectonic plates has shaped Earth’s features along this boundary. Provide evidence to support your answer.
Hydrothermal vents, also referred to as underwater hot springs, have developed as a result of the divergent motion along the Mid-Atlantic Ridge. These mineral-rich vents are also the habitat of rare and unusual life forms that have adapted to the harsh conditions of the deep ocean.
The tectonic plate motion at the Ridge has also produced a distinctive and dynamic geological environment, profoundly influencing the features and landscapes of this region.
What do we need to know about the Mid-Atlantic Ridge that forms at the diverging boundary?The Mid-Atlantic Ridge is a diverging border that separates South America from Africa on the ocean floor. Two tectonic plates are diverging at this boundary, which has resulted in the formation of new oceanic crust. Spreading of the seafloor is a result of plate divergence.
An extensive underwater mountain range called the Mid-Atlantic Ridge traverses the Atlantic Ocean's middle. Magma has been shown to well up from the mantle and form into new oceanic crust as a result of the divergent motion of the South American Plate and the African Plate. The two plates are forced apart by the new crust, which widens the space between them.
The Mid-Atlantic Ridge experiences considerable geological activity, including earthquakes and volcanic eruptions, as a result of its divergent motion. Along the ridge, this activity has also produced a rift valley with imposing mountains and deep valleys brought about by the moving tectonic plates.
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Which one of the following can be classified as a strong electrolyte? A) C₆H₁₂O₆. B) CH₃OH. C) NH₄NO₃. D) HC₂H₃O₂. E) H₂O.
NH₄NO₃ can be classified as a strong electrolyte.
A strong electrolyte is a substance that completely ionizes in solution and conducts electricity well. The following can be classified as strong electrolytes:
C) NH₄NO₃ - Ammonium nitrate is a strong electrolyte as it dissociates into ammonium (NH4+) and nitrate (NO3-) ions in solution.
C) NH₄NO₃ - This salt is used in fertilizers and is a strong electrolyte as it dissociates into ammonium (NH4+) and nitrate (NO3-) ions in solution.
A) C₆H₁₂O₆ (glucose) and D) HC₂H₃O₂ (acetic acid) are weak electrolytes as they only partially ionize in solution.
B) CH₃OH (methanol) is a nonelectrolyte as it does not ionize in solution and does not conduct electricity.
E) H₂O (water) is a polar solvent but it is not an electrolyte as it does not dissociate into ions in solution.
In conclusion, strong electrolytes are substances that dissociate into ions in solution and conduct electricity well, while weak electrolytes only partially ionize in solution. Nonelectrolytes do not ionize in solution and do not conduct electricity.
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Which of the following solutes would move the fastest? albumin urea glucose sodium chloride. sodium chloride.
Sodium chloride is the solute which will move the fastest. Sodium chloride, generally known as salt, is an ionic substance with the chemical formula NaCl.
Denoting a 1:1 ratio of sodium and chloride ions. Sea salt, however, also contains other chemical salts. The molar weights of 39.34 g Na and 60.66 g Cl in 100 g of NaCl are 22.99 and 35.45 g/mol, respectively. The salt that contributes the most to the saltiness of seawater and the extracellular fluid of many multicellular organisms is sodium chloride. Table salt, often known as salt, is frequently used as a condiment and food preservative in its edible form. Many industrial processes employ large amounts of sodium chloride, and it is a significant source of the salt and chlorine compounds used as feedstocks for further chemical synthesis.
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What would happen if a TLC plate was placed In a jar where the solvent level was above the level of the origin (sample spot)? What could you do if you inadvertently spotted your plate too low (aside from consulting your TA)?
If a TLC plate is placed in a jar where the solvent level is above the level of the origin (sample spot), the solvent will reach and dissolve the sample before it has a chance to form a spot. This can cause the sample to spread out and interfere with the accuracy of the results.
If you inadvertently spotted your TLC plate too low, one solution would be to let the solvent front reach the bottom of the plate, let the solvent evaporate, and then re-develop the plate with fresh solvent. This will help to avoid any interference from previous runs and ensure accurate results. Another solution would be to scrape off the low spots and re-spot the sample higher up on the plate. It's also a good practice to make a note of the error in your lab notes so that you can take it into account when interpreting your results
A TLC plate, or Thin Layer Chromatography plate, is a type of chromatography used in analytical chemistry to separate and identify components in a mixture. It consists of a solid substrate, usually made of glass, plastic, or aluminum, coated with a thin layer of adsorbent material, such as silica gel or aluminum oxide
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think critically the mendeleev and moseley periodic charts have gaps for undiscovered elements. why do you think the chart used by moseley was more accurate at predicting where new elements would be placed?
The chart used by moseley was more accurate at predicting where new elements would be placed, because Moseley's work chart based the atomic number which is definable property, measurable through experimentation not chemical properties or atomic mass as mendeleev do.
In his periodic table, Mendeleev left some notable gaps, such as the gaps just below aluminum and silicon, which covered elements as yet to be discovered. When these elements were later discovered, the properties of the new elements were found to match Mendeleev's predictions. The main difference between Mendeleev's and Moseley's arrangement of the elements on the periodic table is that Mendeleev arranged the elements in ascending order of atomic weight, whereas Moseley arranged them in ascending order of atomic number. Moseley diagrams were based on the use of atomic numbers rather than chemical properties of the elements. The similarity of products from the same period often caused problems when creating orders. Moseley's work made it possible to change atomic number from an arbitrary choice to a definable property that can be measured through experimentation.
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The neutral atoms of all of the isotopes of the same element have:
a) different numbers of protons.
b) an equal number of neutrons.
c) the same number of electrons.
d) the same mass numbers.
e) the same masses.
The neutral atoms of all of the isotopes of the same element have:
C) the same number of electrons
Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei, but the same number of protons. This means that isotopes have the same atomic number, which determines the element to which they belong, but different mass numbers.
The other answers are incorrect for the following reasons.
a. This is incorrect because all atoms of the same element have the same number of protons.
b. This is incorrect because isotopes of the same element have different numbers of neutrons. The definition of isotopes is atoms of the same element having different numbers of neutrons.
c. This is incorrect because the mass numbers of the different isotopes will differ. The mass number is the sum of the protons and neutrons in the nucleus of an atom. Since isotopes of the same element have different numbers of neutrons, the mass numbers will differ.
d. This is incorrect because the mass of the different isotopes will differ. Neutrons have mass. Therefore, atoms that have different numbers of neutrons will have different masses.
Therefore, The neutral atoms of all of the isotopes of the same element have:
C) the same number of electrons
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Nitrogen monoxide, a pollutant in automobile exhaust, is oxidized to nitrogen dioxide in the atmosphere according to the equation:
2NO(g)+O2(g)⇌2NO2(g)Kp=2. 5×1012 at 24 ∘C
Find Kc for this reaction
Kc is the equilibrium constant for the reaction in terms of concentrations. To find Kc, we need to convert the pressure values in Kp to concentration values.
Can Kc be used to determine the direction of a chemical reaction?
Yes, Kc can be used to determine the direction of a chemical reaction. If Kc is greater than 1, the reaction will shift to the right, towards products. If Kc is less than 1, the reaction will shift to the left, towards reactants. If Kc is equal to 1, the reaction is at equilibrium and the concentration of reactants and products is not changing. By comparing the value of Kc to 1, the direction of the reaction can be determined. The conversion is done using the ideal gas law: PV = nRT, where P is pressure, V is volume, n is number of moles, R is the ideal gas constant and T is temperature.
Kc can be calculated as Kc = Kp (RT)^Δn, where Δn is the change in the number of moles of gas in the reaction. In this case, Δn = 0, so Kc = Kp.
Therefore, Kc = 2.5 x 10¹² at 24°C.
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where there is a double bond between the carbon atoms and two hydrogen atoms single bonded to each carbon, what type of orbitals overlap to form the pi bond between the two carbon atoms?
the two carbon atoms' orbitals overlap to create a pi bond. Part A: sp2 and sp2, Part B : p and p.
What are the atoms that make up carbon?A carbon atom's nucleus consists of six protons & six neutrons and is surrounded by six electrons.The first valence electron must fill the inner atomic orbital in accordance with quantum physics, whereas the vibrations of the next four electrons just partially cover the second standards & third main orbitals.
Why does the carbon atom matter so much?Without carbon, life on earth will not be conceivable.This is partly because carbon can easily make bonds to other atoms, allowing biomolecules like DNA and RNA, that are crucial for the development and replication that characterize life, to take on a variety of shapes and functions.
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experiment 1: where did the extra mass come from? (hint: the final product is magnesium oxide.)
The extra weight comes from the changing of magnesium to magnesium oxide. Oxygen adds extra weight.
On burning or oxidation of Magnesium, It reacts with the excess oxygen present in the atmosphere to form magnesium oxide. It is an exothermic reaction.
[tex]Mg(solid) + O_{2} (gas)[/tex] ⇒ [tex]MgO[/tex](solid)
Magnesium oxide is white ash. In reaction with water, it forms magnesium hydroxide which is called milk of magnesia. It is used to treat indigestion.
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Answer: The extra weight comes from the changing of magnesium to magnesium oxide. Oxygen adds extra weight. On burning or oxidation of Magnesium, It reacts with the excess oxygen present in the atmosphere to form magnesium oxide. It is an exothermic reaction.
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Please help me! Gas Stoichometry!!! Convert liters to gram and show equation and how you got it. Ill choose brainliest thanks!!!
The mass of ammonia is 3.13g. In reality, it's one of the International System of Units' seven foundation units (SI).
What is mole?A mole is just a measuring scale. In reality, it's one of the International System of Units' seven foundation units (SI). When already-existing units are insufficient, new ones are created.
The levels at which chemical reactions frequently occur exclude the use of grams, yet utilizing actual numbers of atoms, molecules, or ions would also be unclear. To fill this gap between extremely small and extremely huge numbers, scientists created the mole.
N[tex]_2[/tex] +3 H[tex]_2[/tex] [tex]\rightarrow[/tex] 2NH[tex]_3[/tex]
moles of nitrogen = 2.07L/ 22.4L=0.092moles
moles of ammonia formed =0.092moles ×2=0.184moles
mass of ammonia =0.184moles ×17.03= 3.13g
Therefore, the mass of ammonia is 3.13g.
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two important prefixes are kilo (10^3) & micro (10^-6). think about how many micrograms fit in a kilogram. without doing any calculations, is the answer:
The answer is that there are 10^9 (1 billion) micrograms in a kilogram. The prefix "kilo" represents 10^3 (1,000) and the prefix "micro" represents 10^-6 (0.000001).
Therefore, 1 kilogram is equal to 10^3 grams and 1 microgram is equal to 10^-6 grams.
To find the number of micrograms in a kilogram, we can multiply 10^3 grams by 10^9 micrograms/gram. This gives us 10^3 * 10^9 = 10^12 micrograms in a kilogram.
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Which of the following statements about effective nuclear charge for the outermost valence electron of an atom is incorrect? (i) The effective nuclear charge can be thought of as the true nuclear charge minus a screening constant due to the other electrons in the atom. (ii) Effective nuclear charge increases going left to right across a row of the periodic table. (iii) Valence electrons screen the nuclear charge more effectively than do core electrons. (iv) The effective nuclear charge shows a sudden decrease when we go from the end of one row to the beginning of the next row of the periodic table. (v) The change in effective nuclear charge going down a column of the periodic table is generally less than that going across a row of the periodic table.
The effective nuclear charge shows a sudden decrease when we go from the end of one row to the beginning of the next row of the periodic table. is incorrect.
define nuclear charge ?
Nuclear charge is the total positive charge of the nucleus of an atom, which is due to the presence of protons. The nuclear charge of an atom determines the atom's atomic number and plays a significant role in determining its chemical properties, such as its electron configuration, reactivity, and electron affinity. The effective nuclear charge, on the other hand, takes into account the presence of inner shell electrons, which can shield the valence electrons from the full impact of the nuclear charge.
(iv) The effective nuclear charge shows a sudden decrease when we go from the end of one row to the beginning of the next row of the periodic table. is incorrect. The effective nuclear charge generally increases as we go from one end of a row to the other end of the same row in the periodic table, but the change in effective nuclear charge from one row to the next row is not necessarily sudden and can be more gradual.
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Explain why iron from the blast furnace is harder than pure iron .
Iron produced in a blast furnace is harder than pure iron due to the presence of impurities and the way it is produced.
What happens in a blast furnace?In a blast furnace, iron ore is reduced to iron using coke as a reducing agent and a source of carbon. The high temperatures involved in this process result in the formation of a cast iron product that contains carbon and other impurities in the form of carbides and other compounds.
The presence of carbon and other impurities in the iron makes it harder and stronger than pure iron, which is relatively soft and ductile. The carbides formed during the reduction process act as tiny cutting edges, strengthening the iron and increasing its hardness.
This hardened iron is then melted and poured into molds to form pig iron, which can then be further processed to remove impurities and refine its properties. The end result is a stronger and harder iron product that is better suited for various applications, such as construction or manufacturing.
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Which of these describes the energy of motion?
a.Gravitational b.Kinetic c.Potential d.Nuclear
Answer:Kinetic energy is the energy involved in an object's motion. Kinetic energy can be found in moving objects like a bullet, a human, and electromagnetic radiation like light. Kinetic energy is also the force that drives the random, continuous bouncing of atoms or molecules.
Explanation:
Kinetic energy is the energy involved in an object's motion. Kinetic energy can be found in moving objects like a bullet, a human, and electromagnetic radiation like light. Kinetic energy is also the force that drives the random, continuous bouncing of atoms or molecules.
which one of the following is true of trnas? a. each trna binds specific amino acid b. trnas are double stranded c. trnas have special sequences called codons d. there are four types of trnas
Statement (a) each tRNA binds specific amino acid is true.
tRNA stands for transfer RNA, and it plays a crucial role in the process of protein synthesis by carrying specific amino acids to the ribosome, where they are assembled into a protein. Each tRNA molecule is specifically designed to bind with one specific amino acid, and it has a specific anticodon sequence that allows it to recognize and bind with a specific codon in the messenger RNA (mRNA). This ensures that the correct amino acid is incorporated into the growing protein chain in the correct order.
b. trnas are double stranded is false.
tRNA is a single-stranded RNA molecule.
c. trnas have special sequences called codons is false.
tRNA molecules have anticodons, not codons.
d. there are four types of trnas is false.
There are many different types of tRNA molecules, each of which is specific to a particular amino acid. It is estimated that there are about 20-30 different types of tRNA molecules in a typical eukaryotic cell, depending on the organism.
Learn more about eukaryotic cell here:
https://brainly.com/question/29512671
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how many moles are present in 152 grams of FeSO4
Answer:
1.00 moles
Explanation:
Find the molar mass of FeSO4. Add the atomic masses (AMU) of each atom present from the periodic table..
1 Fe = 55.84
1 S = 32.1
4 O = 64
============
Total = 151.9 AMU for FeSO4
This is also the same number for the molar mass of FeSO4, but just expressed as grams/mole. It takes 151.9 grams of FeSO4 to have 1 mole of FeSO4 molecules.
The problem states that 152 grams are present. To obtain moles FeSO4, divide by the molar mass:
(152 grams FeSO4)/(151.9 grams/mole FeSO4) = 1.00 moles of FeSO4
[Note that the grams cancel and moles moves to the top in the division]