Hydrogen isocyanide (HNC) has the same elemental composition as hydrogen cyanide (HCN), but the H in HNC is bonded to the nitrogen atom. Formal charges to each atom is same, The charge on an atom in a compound is known as the formal charge.
Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent type of hydrogen is neutron-free. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma. Atoms are incredibly tiny, measuring typically 100 picometers across. Due to quantum effects, they are so small that it is impossible to predict their behavior with sufficient accuracy using classical physics, as would be the case, for example, if they were tennis balls. The nucleus of an atom contains more than 99.94% of its mass. The electric charges of the protons are positive, those of the electrons are negative, and those of the neutrons are zero. The atom is electrically neutral if the number of protons and electrons is equal. An atom has an overall charge of positive or negative if it contains more electrons than protons; these atoms are known as ions. The electromagnetic force pulls an atom's electrons toward the protons in its atomic nucleus. The nuclear force draws the protons and neutrons in the nucleus together. The electromagnetic force that keeps positively charged protons apart is typically weaker than this force.
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Answer:
Answer : The correct Lewis-dot diagram is shown below.
Explanation:
Explanation :
Lewis-dot structure : Lewis-dot structure shows the bonding between the atoms of a molecule. Lewis-dot structure also shows the unpaired electrons present in the molecule. In the Lewis-dot structure, the dot represent the number of valence electrons.
The given molecule is, Hydrogen cyanide (HCN)
As we know that carbon has '4' valence electrons, hydrogen has '1' valence electron and nitrogen has '5' valence electrons.
Therefore, the total number of valence electrons in hydrogen cyanide, = 1 + 4 + 5 = 10
According to Lewis-dot structure, there are 10 number of bonding electrons and 0 number of non-bonding electrons.
The Lewis-dot structure of hydrogen cyanide (HCN) is shown below.
which of the following is true? group of answer choices the melting point of graphite is highest at a pressure of about 70 kbar 10 km underground, carbon is more stable as diamond than as graphite. the entropy of graphite is smaller than that of diamond
Graphite has a higher entropy than diamond, which is again a result of the dense crystal lattice of diamond. In comparison to the graphite structure, it is far more organized.
What Is graphite higher than diamond?The presence of carbon in both diamond and graphite is another fact that is widely known. Because each of the carbon atoms in diamond forms four covalent bonds to form a tetrahedral structure, as well as because strong covalent bonds are present in it, diamond is harder than graphite.Diamonds are bright and translucent, while graphite is opaque and has an earthy to metallic appearance. Their hardness is another notable physical distinction. The relative Mohs Hardness Scale, which ranges from 1 (softest) to 10 (hardest), is used to compare the hardness of minerals (hardest).To Learn more About Graphite refer To:
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this reaction makes potassium superoxide useful in a self-contained breathing apparatus. how much o2 could be produced from 2.41 g of ko2 and 4.58 g of co2?
The mass of oxygen in grams is 0.704 grams for the could be produced from 2.41 g of ko2 and 4.58 g of co2.
We want to transform the whole lot into moles. The molar masses, in g/mole:
KO2 71.1CO2 44.0O2 32Moles KO2 = 2.41g/(71.1g/mole) = 0.03 molesMoles CO2 = 4.58g/(44g/mole) = 0. 10 moles4KO2 + 2CO2 —> 2K2CO3 + 3O2The response calls for two times as many moles of KO2 than moles of CO2. That way 0.10 mole of CO2 might devour 0.20 moles of KO2. But we best have 0.03 moles of KO2, so the restricting reagent is KO2. There are three moles of O2 produced for each 2 moles of CO2 consumed. In this example we will expect all the KO2 reacts, in order that must end result in (3/4) * (0.02 moles) = 0.022 moles of O2.To get the mass, 0.022 mole * (32g/mole) = 0.704 grams O2So the O2 produces qre 0.704 grams of oxygen produced.Read more about oxygen;
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Which one of these has the highest freezing point?
(i) 1M glucose
(ii) 1M NaCl
(iii) 1M CaC{l_2}
Since glucose does not separate into ions, it will have a single van't hoff factor. Since glucose has the highest freezing point, it will be. Therefore, I $1M $ glucose is the right answer.
What substance has the greatest freezing point?
At 3695 K, tungsten exhibits the highest rate of fusion of any chemical element.
What is the short definition of the Van t Hoff factor?
The ratio of a substance's mass concentration to the percentage of the particles that are produced when it dissolves is known as the Van't Hoff factor. The Van't Hoff factor describes how much a chemical interacts or decomposes in a solution.
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this energy diagram shows the allowed energy levels of an electron in a certain atom or molecule:
1) The ground state of the atom is A
2) There are two excited states
3) There are three lines in the line spectrum
4) The transition A - B has the shortest wavelength
5) The transition that has the longest wavelength is B - C
What is the energy diagram?We know that the energy diagram has to do with the manner in which the electrons that are in the atom can be arranged into specific energy levels. The energies levels would always begin at the ground state which is the lowest energy level.
The other higher energy levels that are above the ground state of the atom can be said to be the excited states of the atom or the molecules as the case may be. The energy level diagram of a certain atom or molecule has been shown in the image that is attached.
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data and report submission - dehydration of an alcohol
Dehydration can have causes that aren't due to underlying disease. Examples include heat, excessive activity, insufficient fluid consumption, excessive sweating, or medication side effects.
What is dehydration of an alcohol?
One route to the synthesis of alkenes is the dehydration of alcohols. This is the process by which alcohols lose water and form double bonds via E1 or E2 mechanisms. Dehydration reactions of alcohols to form alkenes occur by heating alcohols in the presence of strong acids such as sulfuric acid and phosphoric acid at elevated temperatures.
Alcohol is amphoteric. They act as both acids and bases. The lone pair of electrons on the oxygen atom makes the -OH group weakly basic. Oxygen can donate two electrons to an electron-poor proton. Therefore, in the presence of a strong acid, R-OH acts as a base and is protonated to the strongly acidic alkyloxonium ion +OH 2 (protonated tertiary alcohols have pKas as low as -3.8). I can). This fundamental property of alcohols is essential for dehydration reactions with acids to form alkenes.
Therefore, dehydration may be a cause unrelated to the underlying disease. Examples include fever, excessive activity, not drinking enough fluids, excessive sweating, and side effects of medications.
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how many seconds are in 5.29 years
There are 166,825,440 seconds in 5.29 years.
To calculate how many seconds there are in 5.29 years, we first need to find out how many seconds there are in a year. To do that, we need to multiply the number of days within a year, the number of hours within a day, the number of minutes within a day, and the number of seconds within a minute.
1 year = 365 x 24 x 60 x 60
= 31,536,000 seconds
Once we know that, multiply that number of seconds by the number of years in the question, which is 5.29 years.
= 31,536,000 x 5.29
= 166,825,440 seconds.
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Why is balancing chemical equations important?
Answer:
Pls rate as brainliest
Explanation:
This is because it tells about the number of moles reacting and producing. Also, it tells the amount of electrons transferred from one compound to another. Balancing/ balanced equation also tells about the energy changes that take place.
is the pronoun in bold reflexive or intensive? for chemistry class, i need to acquaint myself with the periodic table of elements.
For chemistry class, I need to familiarise myself with the periodic table of elements; the pronoun in bold is reflexive.
The chemical elements are arranged in columns and rows on a table known as the periodic table, sometimes known as the periodic table of the (chemical) elements. It is widely employed in physics, chemistry, and other sciences and is frequently referred to as an emblem of chemistry. It is a visual representation of the periodic law, which asserts that the atomic number-dependent properties of chemical elements follow an approximate periodic pattern. Four generally rectangular sections, referred to as blocks, make up the table. Periods and groups, respectively, are the names of the table's rows and columns. Similar chemical properties are displayed by elements in the same group on the periodic table. The nonmetallic character (keeping their own electrons), which is on the rise from left to right, is a trend that runs the length of the periodic table.
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11. The boiling point of ethanol, C2H5OH, is 78.5°C. and the boiling point for dimethyl ether, CH3OCH3, is-24.0 °C. Explain why you should expect C2H5OH to have a higher boiling point than CH3OCH3 in three sentences or less.
Ethanol has a higher boiling point than dimethyl ether due to intermolecular hydrogen bonding.
Why ethanol has a higher boiling point than dimethyl ether when both have the same molecular weight?In ethanol, the hydrogen of the hydroxyl group is attached to an electronegative oxygen atom. Due to this reason, the hydrogen is free to form hydrogen bonding with other ethanol molecules. The hydrogens of dimethyl ether are bound with a carbon atom which is not electronegative. Hence, the hydrogens do not form any intermolecular hydrogen bonding with other dimethyl ether molecules. This is why ethanol boils at a higher temperature compared to dimethyl ether.
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What is the density of carbon dioxide gas at 248 K and 98.0 kPa ?
A) 0.232 g/L
B) 0.279 g/L
C) 0.994 g/L
D) 1.74 g/L
E) 2.09 g/L
The density of carbon dioxide gas at 248 K and 98.0 kPa is 2.09g/L.
What is the Combine Gas Law?
Boyle's Law, Charles Law, and Gay-Lussac Law are combined to form the combined gas law. It claims that a constant exists between the ratio of a gas's absolute temperature to the product of its pressure and volume. The ideal gas law is produced when Avogadro's law is paired with the combined gas law. The combined gas law has no recognized discoverer, unlike the named gas laws. When temperature, pressure, and volume are held constant, the combined gas law is just a combination of the other gas laws that operates. There are a few standard equations for expressing the combined gas law. The established law connects Boyle's law with Charles law as follows:
PV/T = k
We know that,
1 kPa = 0.00987 atm
So,
P = 0.00987*98 = 0.967atm
T= 248K
Now, the ideal gas equation
PV=nRT
again, n= m/M
where,
m= Mass, M =Molar mass
and density(d) = m/v
now, PV= mRT/M
therefore, d = PM/RT
Molar mass of CO2= 44g/mol
Therefore, d = 0.967atm * 44 g/mol / 0.82Latm/Kmol * 248 K = 2.09g/L
Therefore, option E is correct.
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What is the net charge on the amino acid glycine at pH 7? at pH 12?
Explanation:
The chemical formula for the amino acid glycine is;
[tex] \bold{HOOC—CH_2—NH_2} [/tex]
In solution, the acidic part of the molecule that is [tex] \bold{COOH} [/tex] donates a proton [tex] {H}^{+} [/tex] which is accepted by the basic side of the molecule which is [tex] \bold{NH_2} [/tex]. The molecule in solution becomes:[tex]\bold{ ^ - OOC—CH_2—{NH_3}^{+}}[/tex]
In this state both negative and positive charges cancel out and the net charge on the molecule becomes zero.At a pH of 7 ( neutral state), both negative and positive charges cancel out on each each and the net charge becomes zero[tex]\bold{ ^ - OOC—CH_2—{NH_3}^{+}}[/tex]
At a pH of 12( basic state), there are more [tex] \bold{{OH}^{-}} [/tex] ions present than [tex] {H}^{+} [/tex] ions, the [tex]\bold{{OH}^{-}} [/tex] ions draws a proton from [tex] {NH_3}^{+} [/tex] making it neutral leaving the other part of the molecule negatively charged that's [tex]\bold{{COO}^{-}} [/tex]. Thus the net charge on the molecule becomes negative ( -1).[tex] ^-OOC—CH_2—{NH_3}^{+} + {OH}^{-} \: \rightarrow ^ - OOC—CH_2—{NH_2} \: + H_2O \\[/tex]
Determine the total number of valence electrons and draw the Lewis Structure for SF3+. Assign formal charges and determine the electronic geometry and molecular geometry of the central atom
FORMAL CHARGE ON S = +1
Electronic Geometry is Tetrahedral
Molecular Geometry is Trigonal Pyramidal
What is Lewis structure?Lewis structures, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that depict the interactions of atoms inside molecules as well as any lone pairs of electrons that may be present. Any molecule with a covalent link, as well as coordination compounds, can have a Lewis structure. Gilbert N. Lewis, who first described it in his 1916 article The Atom and the Molecule, gave the Lewis structure its name. Lewis structures add lines between atoms to represent shared pairs in a chemical bond, extending the idea of the electron dot diagram.
Total number of valance electrons in SF3+
= 6(S) + 3 × 7(F) - 1(charge)
= 26 electrons
FORMAL CHARGE ON S = +1
Electronic Geometry is Tetrahedral
Molecular Geometry is Trigonal Pyramidal
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enter your answer in the provided box. what mass of ki is dissolved in 600.0 g of a solution that is 90.0% ki by mass? g ki
540.0 grams mass of KI is dissolved in 600.0 gm of a solution that is 90.0% KI by mass.
The concentration of a solution is defined as the mass of the solute (in this case, KI) divided by the mass of the solvent (in this case, water). Since the solution is 90.0% KI by mass, this means that 90.0% of the mass of the solution is KI and 10.0% of the mass of the solution is water.
Since the mass of the solution is 600.0 g, the mass of KI in the solution is 600.0 g x 90.0% = 540.0 g, and the mass of water in the solution is 600.0 g x 10.0% = 60.0 g.
Therefore, the mass of KI that is dissolved in the solution is 540.0 g.
Therefore, the answer is 540.0 g.
Mass fraction can also be expressed as a percentage of mass with a denominator of 100. (often referred to as percentage by weight in commercial contexts; see mass versus weight). Two other methods for describing the composition of a mixture in an arbitrary size are the mole fraction (percentage by moles, mol%) and the volume fraction (percentage by volume, vol%). When the prevalences of interest are those of particular chemical elements rather than compounds or other substances, the phrase "mass fraction" can also refer to the ratio of an element's mass to the total mass of a sample. Another term that might be used in similar contexts is mass percent composition. The term "quantity" is not used to describe this amount. In textbooks for younger pupils in particular, this inaccurate name is still used.
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the two reactants shown below are combined to bring about a nucleophilic substitution reaction.
1) Substitution occurs on carbon b
2) The leaving group is g
3) The nucleophile e
What is a nucleophilic substitution reaction?We know that when we are talking about a substitution reaction, we have to be looking at the kind of reaction that is going to occur when a particular moiety leaves a compound and is replaced by another moiety. When the attacking agent in the reaction is a specie that is rich in electrons (either a lone pair or a negative charge) and the attack is on a positive center in the substrate, we say that the reaction is a nucleophilic substitution reaction.
The leaving group has to do with the chemical moiety that is seen to depart from the substrate in the course of the reaction while the nucleophile is the specie that attacks the substrate.
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suppose that daniel has a 2.50 l bottle that contains a mixture of o2 , n2 , and co2 under a total pressure of 4.80 atm. he knows that the mixture contains 0.230 mol n2 and that the partial pressure of co2 is 0.250 atm. if the temperature is 273 k, what is the partial pressure of o2 ?
If the mixture contains 0.230 mole N₂ and that the partial pressure of CO₂
is 0.250 atm and if the temperature is 273 k, the partial pressure of O₂ should 2.67 atm.
First we have to find the number of mole of CO₂ :
P = 0.25atm
V = 2.5L
T = 273K
So, find number of moles using:
PV = nRT
0.25 atm × 2.5 L = n × 0.08206 atm.L/ K × 273 K
n = 0.0279 mole
Now, the total mole of gas :
P = 4.8 atm
V = 2.5L
T = 273K
find number of moles using :
PV = nRT
4.8 atm × 2.5 L = n × 0.08206 atm.L/ K × 273 K
n = 0.5357 mole
Now, find mole of O₂ :
mole of O₂ = total mole - mole of CO₂ - mole of N₂
mole of O₂ = 0.5357 - 0.0279 - 0.21
Mole of O₂ = 0.2978 mole
finally, find pressure of O₂ :
V = 2.5 L
n = 0.2978 mole
T = 273K
PV = nRT
P × 2.5 L = 0.2978 × 0.08206 atm.L/ K × 273 K
P = 2.67 atm
So, the partial pressure of O₂ is 2.67 atm.
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Complete the valence molecular-orbital diagram for oxygen, 02- 2p Answer Bank 2s 2s
The bonding molecular orbitals are of lower energy. So, they are first to fill up. The antibonding orbitals are of higher energy than bonding orbitals.
According to molecular orbital theory molecular orbitals of a molecule is formed by combination of its atomic orbitals and electrons present in molecule are distributed among the molecular orbitals.
The total number of electrons present in O2 molecule are 16. Thus, the electronic configuration for combination of two atomic orbitals of oxygen is as follows.
Here sigma and pi orbitals are called bonding molecular orbitals. The sigma star and pi star are called antibonding orbitals.
The electronic configuration is the distribution of a molecule in molecular orbitals. Total number of electrons present in molecule is 16. Thus, 16 electrons are filled in its molecular orbitals.
In orbital, the valence orbitals are 2s and 2p and total number of electrons in these orbitals are 12. Thus, Construct valence molecular orbital diagram and fill 12 electrons as attached.
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What are the correct number of electrons, protons and neutrons respectively in O^2− ion of the isotope O?
The number of subatomic particles present in the isotope O⁻² :
Protons = 8 (Z=8)
Electrons = 10
Neutrons = 8
The number of electrons, protons of neutrons for a particular element in its uncharged state can be found out using its Atomic number( as Z = No. of protons).
For the stability of element the number of electrons and the number of protons present in the atom of an element are equal. While the number of neutrons present in the atom can be found out by subtracting the Atomic number from the atomic mass(as A= no. of neutrons + protons)
To attain the stable valence configuration atoms may loose or attain electrons changing them to a charged ion.
The Atomic no.(Z) of Oxygen is 8, the electronic configuration of Oxygen is
2,6 so Oxygen gains 2 e⁻ to attain the stable valance shell 2,8.
Thus Oxygen a charge of 2⁻.
Then,
The number of protons present in the isotope O⁻² is 8 (Z)
The number of electrons present in the isotope O⁻² is 8 +2 = 10 (Due to the gain of the 2 additional e⁻)
The number of Neutrons present in the isotope O⁻² is A -Z; A= 8
Z=8; A=16;
Thus,
The number of Neutrons present in the io, O⁻² is 16-8Z; = 8
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1.0 mole of a gas is enclosed in a 12.3 liter cylinder with a moveable piston at 300 K and 2.0 atm. Half of the gas is removed, leaving 0.50 mole in the cylinder and the system is warmed to 900 K. The cylinder changes volume to maintain constant pressure. What is the volume in the final system?
Answer: It's 18.45
Explanation:
What is the condensed structural formula for 2, 2-dimethylbutane?
Answer:
CH₃C(CH₃)₂CH₂CH₃
Explanation:
2,2-Dimethylbutane has a four-carbon chain with two methyl groups on C-2. The condensed structural formula is CH₃C(CH₃)₂CH₂CH₃. Note that the two CH₃ groups are enclosed in parentheses after the carbon atom to which they are attached.
Draw the electron configuration for a neutral atom of vanadium.
The electronic configuration of vanadium can be written as, [Ar] 3d³ 4s²
as the neutral atom of vanadium is Argon.
The chemical element vanadium has the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer somewhat stabilizes the free metal against further oxidation. Electron configuration is the arrangement of electrons in atomic orbitals. It shows the electrons in numbers, It doesn’t show the details on the spin of electrons like the orbital diagram. Electronic configuration of the Vanadium atom in ascending order of orbital energies,
1s2 2s2 2p6 3s2 3p6 4s2 3d3
The neutral atom of vanadium is Argon. so, the electronic configuration of vanadium can also be written as,
[Ar] 3d³ 4s²
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1. Write the letter of the following true statements. And also, write corrected versions for any false statements.
A. The pH of an alkaline solution is less than 7.
B. The more acidic a solution, the higher the pH.
C. You can use universal indicator to find out the pH of a solution.
D. Alkalis are the substances which are soapy to touch and sweet in taste.
2. A student has a glass of essential oil. Its volume is 50 ml. It has a mass of 40 g. Use the equation below to calculate its density.
density = mass/ volume
A. False (The pH of an alkaline solution is greater than 7.)
B. True
C. True
D. False (Alkalis are usually soapy to touch and have a bitter or metallic taste.)
Corrected versions:
A. The pH of an alkaline solution is greater than 7.
D. Alkalis are usually soapy to touch and have a bitter or metallic taste.
Calculation:
To calculate the density of the essential oil, you would use the following equation:
density = mass/volume
Plugging in the given values, you would get:
density = 40 g/50 ml = 0.8 g/ml
draw the product of the reaction between 1-pentyne and li in liquid nh3, then ch2i2/zn(cu).
The product of the reaction between 1-pentyne and li in liquid nh3, then ch2i2/zn(cu) results in the formation of 1-penetene.
Alkenes having the chemical formula C 5H are pentene. Each molecule's molecular structure consists of one double bond. There are six different compounds in this class, and they are distinguished from one another by the shape of the double bond and whether the carbon atoms are linked linearly or in a branching arrangement. Alpha-olefins include 1-pentene. Most frequently, 1-pentene is produced as a byproduct of the catalytic or thermal cracking of petroleum, or during the thermal cracking of hydrocarbon fractions to produce ethylene and propylene. Sasol Ltd. is the sole producer of 1-pentene on a commercial scale, and it uses the Fischer-Tropsch technique to extract it from petroleum. Cis-2-pentene and trans-2-pentene are the two geometric isomers of 2-pentene. Olefin metathesis uses cis-2-pentene. Two-methylbut-1-ene, three-methylbut-1-ene (isopentene), and two-methylbut-2-ene are the branching isomers (isoamylene). One of the three primary byproducts of deep catalytic cracking (DCC), which operates very similarly to fluid catalytic cracking, is isoamylene (FCC). Vacuum gas oil (VGO) is the main feedstock used by the DCC to create propylene, isobutylene, and isoamylene. The growth of the DCC, which is run very similarly to the FCC, has been driven by the increase in demand for polypropylene.
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a sample prepared using the solvent and any other chemicals in the sample solutions, but not the absorbing substance
blank: a sample created without the absorbing agent utilizing only the solvents and any other compounds present in the sample solutions.
What does it mean to measure how much light a sample absorbs?A technique called spectrophotometry uses light intensity measurements as a ray of light travels through a sample solution to determine the amount that a chemical compound absorbs light.
What does spectrophotometry mean by absorbance?The amount of light absorption by a solution is measured by its absorbance (A), often referred to as optical density (OD).The amount of light that may flow through a solution is called its transmittance.
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the splitting of the uranium atom is called . radioactive cleavage nuclear fission nuclear fusion radioactive merge half life
the splitting of the uranium atom is called nuclear fission.
Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atoms also known as fission products. Additional neutrons are also released that can initiate a chain reaction. When each atom splits, a tremendous amount of energy is released.
Nuclear fission is more dangerous than fusion as it produces harmful weapons-grade radioactive waste in the fuel rods that need to be stored safely away for thousands of years.
Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy. While different, the two processes have an important role in the past, present and future of energy creation.
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calculate the frequency of light produced from a wave length of 450 x 10^-9m
The formula for frequency in terms on time is as follows: f = 1/T, where f seems to be the frequency expressed in hertz and T is the duration of one cycle expressed in seconds. 4.5 × 10-7 meters .
What is the light's frequency?The range of the frequency of visible light is roughly 400 to 700 THz.A Terahertz, or THz, is a frequency measurement equal to the one trillion Hertz.the range of electromagnetic fields.
What is the speed of light equation?One universal physical characteristic that really is significant in many branches of physics is the speed if light in a vacuum, typically abbreviated as c.The exact value of the speed of light, c, is 299,792,458 meters per second.
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Which of the following has a standard Gibbs free energy of formation equal to zero? (i) Br2le) (ii) O2 (ii) NaOH (s) O (ii) only O (i) only O (i) and (ii) O (ii) and (iii) O (i), (ii), and (iii) O (ii) only
Answer:
3
Explanation:
there element are approximately together and substitute themselves
why does i2 have a higher boiling point than f2
Iodine molecules will be forced to cling together by this force since it is so powerful. The iodine molecule is therefore extremely tough to break. Iodine has a higher boiling point as fluorine as a result.
What exactly is boiling point?
The temperature when a liquid's vapor pressure equals that tension of the gas below it is known as the boils point of the liquid. The degree at which a liquid's vapor pressure equals one atmosphere is called the liquid's typical boiling point (760 torr). The view from a distance. view from a distance of a bubbles in boiling water.
High boiling point: What does that mean?
It measures the point where a chemical boils, to put it simply. A higher the boiling point denotes stronger intermolecular forces, similar to the melting point.
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identify the major and minor resonance contributor(s) for the azide anion, n3–.
To identify the major and minor resonance we have 7 steps they are:
1. Should write all possible connections for the nitrogen atoms.
N-N-N
2. To, calculate V, the number of valence electrons.
V=3 N +1.------(1)
= 3×5 + 1 = 16
3. For the Calculate P, the number of π electrons that are present in the molecule:
P=6n+2–V-------(2)
where n is the number of non-hydrogen atoms.
substitute values in(2)
we get
P= 6×3 + 2 - 16 = 4 π electrons. So there must be either two double bonds or one triple bond.
4. After, Draw the new structures.
Add all the possible double and triple bonds in the same ways.
5. Next, Add valence electrons to produce each atom an octet.
6. Calculate the formal charge on each atom.
We end up with 3 possibilities.
7. Identify the major contributor.
All three structures have a separation of charge.
The first two structures contain a charge of 2- on one N atom. The third structure has a charge of -1 on two separate N atoms.
The most stable contributor will have the greatest delocalization or spreading out of charge.
So the first two structures are minor contributors, and the third structure is the major contributor.
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What is the electron configuration for a neutral atom of manganese?
A manganese neutral atom has the following ground-state electron configuration: 1s2, 2s2, 2p6, 3s2, 3p6, and 4s2, 3d5.
How do you determine the configuration of an electron?The shell number (n) is the first symbol used to represent an electron configuration, followed by the kind of orbital and the superscript number of electrons in the orbital. Consider this: The periodic table shows that oxygen has eight electrons.
What does 1s 2s 2p 3s 3p mean?The electric orbitals' energy levels are 1s, 2s, and 3s. One atom may have numerous electronic orbitals, and as a result, different quantum numbers are used to classify different energy levels: 1s 2s 2p 3s 3p 6s 4f 5d 6p 7s 5f 6d 7p. 4s 3d 4p. We can understand what the ω momentum quantum number l means.
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a glucose solution being administered with an iv has a flow rate of 4.00cm3/min4.00cm3/min . what will the new flow rate be if the glucose is replaced by whole blood having the same density but a viscosity 2.50 times that of the glucose? all other factors remain constant.
If glucose is substituted with whole blood that is the same density but has a viscosity that is 2.50 times that of glucose, the new flow rate will be 1.60cm3/mm.
Q=V/t
Q=Av
R=8ql/πr⁴
Q=P₂ -P₁/R
Q=(P₂ -P₁)πr⁴/8ql
(P₁+(1/2)ρv²+ρgh)Q=power
P₁+(1/2)ρv₁²+ρgh₁=P₂+(1/2)ρv₂²+ρgh₂
Q[tex]_{g}[/tex]R[tex]_{g}[/tex]=Q[tex]_{b}[/tex]R[tex]_{b}[/tex]
Q[tex]_{b}[/tex]=Q[tex]_{g}[/tex]R[tex]_{g}[/tex]/R[tex]_{b}[/tex]
=4.00/2.5=1.60cm³/mm
Viscosity is a fluid's (liquid or gas) resistance to a change in shape or motion of adjacent parts with respect to one another. Viscosity indicates resistance to flow.
viscosity is the ability of a fluid (liquid or gas) to resist change in form or motion of adjacent parts with respect to one another. Viscosity indicates resistance to flow. The fluidity, which measures how easily something may flow, is the reciprocal of viscosity. The viscosity of molasses, for instance, is higher than that of water. Viscosity can be thought of as internal friction between the molecules; this friction prevents the development of velocity disparities within a fluid since a section of a fluid that is compelled to move carries along nearby parts to some degree.
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