Answer:
e
Explanation:
because it loses a proton stop being magnetic
what distinguishes the atoms of one element from another?
The atoms of one element are distinguished from another based on their atomic number, Each element has a unique number of protons in its nucleus, which gives it a unique atomic number.
For example, all carbon atoms have 6 protons in their nucleus, which gives carbon its unique atomic number of 6. All oxygen atoms have 8 protons in their nucleus, which gives oxygen its unique atomic number of 8. This means that the atomic number of an element determines its chemical properties and its position in the periodic table.
In addition to the number of protons, atoms of the same element can have different numbers of neutrons in their nucleus, which gives rise to different isotopes of the element.
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Calculate bond order of N2?
Bond order of N2 is 3. It is a naturally occurring as a diatomic gas. N2 has a triple covalent bond between the nitrogen atoms.
The bond order is defined as a formal measure of the multiplicity of a covalent bond between two atoms. Bond order is the difference between the numbers of electron pairs in bonding and antibonding molecular orbitals. It is the number of bonding pairs of electrons between the two atoms. A single bond has a bond order of one and a double bond has a bond order of two and a triple bond has a bond order of three in a covalent bond. A high bond order indicates that there is more attraction between the electrons. A higher bond order means that the atoms are held more tightly together. It indicates the stability of the bond. There is the greater the stability with higher bond order.
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What is a skeleton equation give example?
Nuclear power plants produce no _________________________________________ but they do generate ____________________________________________________.
Answer:
Green house gas emissions but do generate heat to produce steamsince power plans don't burn fuel, they don't produce greenhouse
Explanation:
Nuclear power plants produce no greenhouse gas emissions but they do generate electricity.
What are Nuclear power plants ?Nuclear power plants are a type of power generation facility that harnesses the energy from nuclear reactions to produce electricity.
Unlike fossil fuel power plants, which burn coal, oil, or natural gas and release greenhouse gases into the atmosphere, nuclear power plants do not emit any greenhouse gases during their operation.
This is because nuclear power plants rely on nuclear fission, a process where the nucleus of an atom is split, to generate heat.
The heat is then used to produce steam, which drives turbines connected to generators, ultimately generating electricity.
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Which type of isomer differs in the covalent arrangement of atoms?
Types of isomers that differ in the arrangement of covalent atoms are structural isomers.
Definition of IsomersIsomers are compounds with the same molecular formula but different structural formulas and do not necessarily share the same properties. Generally, isomers have similar chemical properties to each other. In general, isomers are divided into two, namely structural isomers and geometric isomers.
Structural isomers occur due to differences in the arrangement of structural bonds between atoms and functional groups in a molecule. There are three types of structural isomers namely skeletal isomers, positional isomers and functional group isomers.
Geometric isomers are isomers that are caused by a limitation of free rotation of a bond in a molecule. In contrast to structural isomers, these isomers occur only in compounds that have a rigid bond with two dissimilar sides and, usually, occur in alkenes.
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Which is the strongest interparticle force present in a sample of H3PO4? a. dipole―dipole forces b. ionic bonding forces c. ion―induced dipole forces
d. dispersion forces e. ion―dipole forces f. hydrogen bonding forces g. dipole―induced dipole forces
The strongest interparticle force present in the sample of H₃PO₄ is the correct is e. ion―dipole forces.
The intermolecular force of the attraction is the molecule H₃PO₄ that is phosphoric acid is the ion - dipole forces. The ion - dipole force is the attractive force that will results from the electrostatic attraction in between the ion and the neutral molecule that will have the dipole. The intermolecular force of attraction is the attractive and the repulsive forces that will arise in between the molecules of the substance.
Thus, the H₃PO₄ that is phosphoric acid sample has the strongest ion - dipole forces of intermolecular attraction.
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Why does methanol have a low boiling point?
The methanol does have the low boiling point because of the very strong hydrogen bonds in the methanol.
The methanol has the low boiling point as it has the very strong hydrogen bonding. The Methanol is the alcohol , the Hydrogen bonds are present in the alcohol because of the hydrogen attached with the electronegative atom search of the oxygen. The molecular formula of the methanol is CH₃OH. The Hydrogen bonding occurs when the significant amount of the positive charge will building up on the hydrogen atom.
Thus, due to the hydrogen bonding the boiling point of the methanol is very low.
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What is CS2 called in chemistry?
The compound CS₂ is called carbon disulfide in chemistry.
With the chemical formula CS₂ and the structural formula S=C=S, carbon disulfide (commonly known as carbon disulfide) is a significant inorganic molecule in chemistry. It is a white liquid that serves as a component in the synthesis of organic compounds.
Several industries utilise carbon disulfide. Many compound like Rubber, viscose rayon, cellophane are made up of it.
The group of inorganic substances known as other non-metal sulfides includes CS₂. These are inorganic compounds with a sulfur atom in an oxidation state of 2, where the most massive atom linked to the oxygen is a member of the other non-metals group.
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Classify each solid as a covalent, ionic, metallic, or molecularsolid.sodium sulfide, pure sodium, frozen carbon dioxide, diamond.
The classification of solid are :
Sodium sulfide - ionic solid
Pure sodium - metallic solid
Frozen carbon dioxide - molecular solid
Diamond - covalent solid
The sodium sulfide that is Na₂S is the compound formed by the ionic bonding. The sodium sulfide is classified as the ionic solid. The pure sodium exhibits the metallic bonding and comes under the metallic solid. The frozen carbon dioxide also called as the dry ice is the molecular solid.
The diamond is the network of the covalent bonding. Therefore the diamonds comes under the category of the covalent solid. The covalent bonds are formed between the atoms by the sharing of the electrons.
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In what energy band will JWST take observations?
Group of answer choices
Infrared
Radio
Ultraviolet
X-ray
The James Webb Space Telescope (JWST) is designed to take observations in the infrared part of the electromagnetic spectrum.
What is energy band?In physics, an energy band is a range of allowed energies that electrons in a solid material can have. In a solid material, the electrons are confined to specific energy levels, which depend on the properties of the atoms and the arrangement of the atoms in the crystal lattice. These energy levels are often referred to as "bands," because they form continuous bands of allowed energies rather than discrete energy levels. The most important energy bands in solid materials are the valence band and the conduction band. The valence band is the range of energy levels that the electrons occupy when the material is in its ground state, while the conduction band is the range of energy levels that the electrons can occupy when they are excited to a higher energy state. In an insulator, there is a large energy gap between the valence band and the conduction band, so it is difficult for electrons to move from the valence band to the conduction band and conduct electricity. In a conductor, there is only a small energy gap between the valence band and the conduction band, so electrons can move freely from the valence band to the conduction band and conduct electricity. In a semiconductor, the energy gap is intermediate, so the conductivity can be controlled by doping or applying a voltage.
Here,
Specifically, it will operate in the wavelength range of 0.6 to 28.5 micrometers, which is longer than the visible light range that the Hubble Space Telescope observes. The infrared band is particularly useful for studying the formation of galaxies and stars, the evolution of the universe, and the properties of exoplanets, among other things.
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what is the type of polyester that gets formed in the reaction between ethylene glycol and phthalic anhydride?
The polyester that is formed in the reaction between ethylene glycol and phthalic anhydride is called polyethylene terephthalate (PET).
PET is a thermoplastic polymer that is used in a wide range of applications, including textile fibers, packaging films, and engineering plastics. It is formed by the condensation polymerization of ethylene glycol and terephthalic acid (or its dimethyl ester), but phthalic anhydride can also be used in place of terephthalic acid.
In the reaction between ethylene glycol and phthalic anhydride, the two monomers undergo a condensation reaction to form a linear polyester chain with ester linkages between the monomer units. This polyester chain can then undergo further reactions to form a variety of different structures and materials.
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The volume of a balloon was 4.21 L when the temperature was 25.0 °C, what will the volume of the balloon be when the temperature is
50.0°C?
based on your knowledge of intra- and intermolecular forces, choose the answer with the compounds listed in order of increasing boiling point.
a. SbCl2 < Brf5 < Nh3 < Mgbr2
b. Mgbr2 < Nh3 < Brf5 < SbCl2
c. Brf5 < SbCl2 < Mgbr2 < Nh3
d. Mgbr2 < Brf5 < SbCl2 < Nh3
The order of increasing boiling point be Mgbr2 < Brf5 < SbCl2 < Nh3.
What is meant by intra- and intermolecular forces?Atoms within a molecule are held together by intramolecular forces. There are forces between molecules known as intermolecular forces. Between nearby particles, there are forces of attraction or repulsion known as intermolecular forces (atoms, molecules, or ions).
It can be helpful to distinguish between intramolecular and intermolecular processes. While two or more reaction sites within the same molecule are engaged in intramolecular reactions, covalency changes occur in two distinct molecules during intermolecular reactions.
Atoms are held together to form molecules by intramolecular forces. Molecules are held together by intermolecular interactions to create solids and liquids.
Intramolecular bonds are the covalent connections that hold the hydrogen and oxygen atoms of a water molecule together.
Therefore, the correct answer is option d. Mgbr2 < Brf5 < SbCl2 < Nh3
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what protic solvent for sn1 master organic chemistry?
Some common protic solvents used in SN1 reactions include water, alcohols, and carboxylic acids.
In organic chemistry, SN1 reactions are a type of substitution reaction that occurs in a protic solvent.
A protic solvent is a solvent that has a hydrogen atom bonded to an electronegative atom, such as oxygen or nitrogen. This allows the solvent to form hydrogen bonds with the reactants and stabilize the transition state of the reaction.
These solvents are able to stabilize the carbocation intermediate that is formed during the reaction, which helps to increase the reaction rate.
It is important to note that the choice of solvent can have a significant impact on the rate and outcome of the reaction. For example, a polar protic solvent like water will favor the SN1 reaction, while a polar aprotic solvent like acetone will favor the SN2 reaction.
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What amino acid performs the nucleophilic attack during the chymotrypsin mechanism?(a) Lys(b) Cys(c) Thr(d)Ser(e)His.
Option d is the correct answer to this question. The amino acid Ser performs the nucleophilic attack during the chymotrypsin mechanism.
An amino acid involved in the production of proteins is ser or serine. It is a polar amino acid because it has a -amino group, a carboxyl group, and a side chain made up of a hydroxymethyl group.
Serine is essential for the synthesis of muscle tissue, proteins, and enzymes in the body. For the correct metabolism of lipids and fatty acids, serine is required. Moreover, it aids in the creation of antibodies. Several cosmetics and skin care products use serin as a natural moisturizing agent.
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A rigid container holds 22. 4 l of an ideal gas at stp. How many moles of gas need to be added to the container to make the pressure equal to 325 kpa?.
Avogadro's law states that 2.2075 moles must be added to the container in order to raise the pressure to 325 kPa.
What is meant by Avogadro's law?The general number of atoms or molecules has a direct relationship to the volume occupied by a gas under constant temperature and pressure, according to Avogadro's law, a gas law.
Given that it links temperature, pressure, volume, and substance amount, it is closely related to the ideal gas equation.
V ∝ n,
The straight line graph of volume versus moles is a straight line passing through the origin which implies that zero moles of gas occupy zero volume.
As 1 atm = 101.325 kPa
325 kPa = 325/101.325 = 3.2075 atm, as at STP 1 atm =22.4 liter.
Applying Avogadro's law,
n₂ = 71.848 × 1/22.4 = 3.2075 moles .
To estimate moles to be added, we get
3.2075 - 1 = 2.2075 moles.
Therefore, to increase the pressure in the container to 325 kPa, 2.2075 moles of gas must be supplied.
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the amount of energy required to remove an electron from an isolated atom or molecule. True or False
Answer: True
Explanation: The amount of energy required to remove an electron from an isolated atom or molecule is the ionization potential. There is an ionization energy for each successive electron removed.
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Element X has two isotopes. The first isotope has a natural abundance of
70% and has a mass of 50 amu. The second isotope has a natural
abundance of 30% and has a mass of 54 amu. Is the average mass
going to be closer to 50 or 54 amu and why?
The average atomic mass is calculated on the basis of the average mass of all the isotopes present in the nature. Here the average mass is closer to 50 amu.
What is isotope?The isotopes are defined as the chemical elements which have the same atomic numbers but different mass numbers. The number of protons or electrons in them are same but the number of neutrons will be different.
₅₀X = 70% = 0.70
₅₄X = 30% = 0.30
Average atomic mass = (50 × 0.70) + (54 × 0.30) = 51.2
Thus the average atomic mass is closer to the first isotope of mass 50 amu. Because of the higher percent abundance of this isotope.
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a polar covalent bond between two atoms results from
Two atoms with various electronegativity levels. The electrons in a bond are not distributed equally when one atom is bound to a more electronegative atom. Polar covalent bonds are this kind of bond.
What is a covalent bond?A chemical link known as a covalent bond includes the sharing of electrons to create electron pairs between atoms. These electron pairs are referred to as shared pairs or bonding pairs. When atoms share electrons, a constant balance between the forces that pull them in opposite directions results in covalent bonding. Atoms share electron pairs through covalent connections. H-H or C-H are examples of nonpolar covalent bonds involving atoms with similar or identical electronegativity, while polar covalent bonds are formed when unequal electronegativity is shared across atoms (e.g., H–O). A shared electron pair is the Lewis definition of a covalent bond. In hydrogen chloride, a hydrogen atom and a chlorine atom form the following chemical connection.To learn more about covalent bond refer to:
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What is the general name for H2SO4?
The general name for H₂SO₄ is sulfuric acid.
Sulfuric acid is a strong acid that is commonly used in a wide range of industrial and laboratory applications, such as in the production of fertilizers, dyes, detergents, and explosives, among others. It is a dense, oily, and colorless liquid that is soluble in water and has a very high boiling point of 337 °C (639 °F).
It is also used as a laboratory reagent for various chemical reactions, and as an electrolyte in lead-acid batteries. It is a very strong acid that is capable of reacting with most metals, and it can cause severe burns and eye damage upon contact with the skin or eyes. Therefore, it should be handled with extreme caution and protective equipment should always be used when working with it.
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rank these four conformations of 2-methylbutane in order from lowest to highest energy.
The rank of these four conformations in order of lowest to highest energy is:
1.Syn
2.Gauche
3.Gauche-gauche
4.Anti
The conformations of 2-methylbutane can be ranked in order of energy by comparing the energies of different arrangements of its atoms. The energy of a conformation is determined by the strength of the intermolecular forces between its atoms and the bond angles and distances between them. The following are the four conformations of 2-methylbutane Anti, Gauche, Gauche-gauche and Syn
Of these four conformations, the syn conformation has the lowest energy because the methyl group and the hydrogen atom are on the same side of the molecule, which reduces the steric strain between them. The gauche conformation has a slightly higher energy because the methyl group and the hydrogen atom are on opposite sides of the molecule, increasing the steric strain. The gauche-gauche conformation has an even higher energy because the strain is further increased by the presence of two gauche conformations.
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Which equation represents the second ionization energy of magnesium? Choose one: a) Mg+ (g) + e - â Mg(g) b) Mg +(g) â Mg2+ (3) +e- c) Mg(g) â Mg+ (g) + e- d) Mg(g) â Mg2+ + 2e- e) Mg(g) + e- â Mg- (g) e) Mg2+ (g) + 2e- â Mg(g)
Option b , represents the second ionization energy of magnesium.
What is ionization energy?Ionization energy is often measured in electronvolts (eV) or joules in physics (J). The energy required to ionise a mole of atoms or molecules is given in chemistry as kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol), respectively.
Two periodic trends that adhere to the laws of Coulombic attraction are revealed by comparing the ionisation energy of atoms in the periodic table. In a given time, ionisation energy typically increases from left to right (that is, row). In a particular group, ionisation energy typically decreases from top to bottom (that is, column).
The latter pattern is caused by the outer electron shell moving away from the nucleus more and farther, with an additional inner electron shell being added every row as one proceeds down the column.
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based on your knowledge of intra- and intermolecular forces, choose the answer with the compounds listed in order of increasing boiling point.A) SbCI5 < BrF5< NH3< MgBr2B) MgBr2 < NH3 < BrF5 < SbCI5C) BrF5 < SbCI5 < MgBr2 < NH3D) MgBr2 < BrF5 < SbCI5 < NH3
The answer is (D) MgBr2 < BrF5 < SbCI5 < NH3 with the compounds listed in order of increasing boiling point
D) MgBr2 < BrF5 < SbCI5 < NH3
This ordering is consistent with the strengths of intermolecular forces in each compound. MgBr2 has the highest boiling point due to its strong ionic bonds, followed by BrF5 with its strong dipole-dipole interactions. SbCI5 has weaker dipole-dipole interactions than BrF5, so it has a lower boiling point. NH3 has the weakest intermolecular forces of all the compounds listed, so it has the lowest boiling point.
The boiling point of a compound is primarily determined by the strength of its intermolecular forces. Compounds with stronger intermolecular forces will have higher boiling points, while compounds with weaker intermolecular forces will have lower boiling points.
Therefore, the correct answer is (D) MgBr2 < BrF5 < SbCI5 < NH3.
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Select all of the reasons why water is essential to life.
- It dissolves a wide variety of substances.
- It plays a role in many chemical reactions.
- It regulates temperature.
Water is essential to life for multiple reasons, including its ability to dissolve a wide variety of substances, play a role in chemical reactions, and regulate temperature. (All Options)
Water is a unique and versatile substance that plays a crucial role in supporting life on Earth. One of its most important properties is its ability to dissolve a wide variety of substances, which makes it a vital component of many biological processes. For example, water helps to transport essential nutrients, minerals, and waste products throughout the body. Additionally, water plays a central role in many chemical reactions, such as those that occur in metabolic processes and energy production.
Finally, water is a good conductor of heat and helps to regulate temperature, which is essential for maintaining the stability of biological systems. Overall, water is an essential component of life and its properties play a critical role in supporting the diverse range of living organisms found on Earth.
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is agno3 soluble in water
AgNO₃ is soluble in water .
Strong ionic bonds combine to generate a silver nitrate molecule. It indicates that the compound's two constituents, silver and nitrate, retain opposing charges and are drawn to one another.
Thus, nitrate is negatively charged whereas silver is positively charged. Because it possesses an additional ion, silver acquires a positive charge during the production of silver nitrate. In contrast, nitrate loses an ion.
Consequently, their charges are combined and balanced. Yet, the silver and nitrate separate when submerged in water. This explains why silver nitrate dissolves in water.
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Which pair of substances could be used to illustrate the law of multiple proportions?
A) SO2, H2SO4
B) CH4, C6H12O6
C) CO, CO2
D) NaCl, KCl
E) H2O, O2
The law on multiple proportions is shown with the chemical pair CO and CO2.
What makes SO3 or SO3 2 different from one another?Three double bonds and also no lone pairs at the sulphur are present in SO3. That is altered by adding two extra electrons, which add two more electrons to sulphur. Sulfate trioxide is known as SO3, and SO3-2 is known as the sulfite ion.
Is there a multiple proportionality law for CO and CO2?Similar elements can combine to form compounds, such as carbon dioxide and carbon monoxide (CO) (CO2). Both compounds are composed of carbon (C) and oxygen (O) atoms, but their carbon to oxygen ratios are different. This serves as an example of the multiple proportions law.
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When water freezes, it freezes the salt with it.
True
False
Answer: False
When salt water or any other liquid that has some type of particle in it, freezes the salt or particles sink to the top or bottom, depending on weather it is more dense than the liquid it is meaning B. False is our correct answer.
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What element is in period 4 and has 5 neutrons in its most common isotope?
The neutrons are sub atomic particles. The particles which are smaller in size than an atom is known as sub atomic particles. The isotope of beryllium with mass number 9, i.e., ⁹Be has 5 neutrons.
What is isotope?The isotopes are defined as the chemical elements which have the same atomic numbers but different mass numbers. In isotopes, the number of neutrons differ from the number of protons. The physical properties of the elements are different.
'Be' has 3 isotopes, they are ⁷Be, ⁹Be and ¹⁰Be. Among these isotopes, ⁹Be is found to have 5 neutrons and 4 protons or electrons.
Thus ⁹Be is the most common isotope with 5 neutrons.
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The volume of oxygen at STP given by IL of 10 volume solution of H2O2 is
a) IL
b) 10L
c) 0.1 L
d) 100 L
according to the information in the graphs and the table how was species diversity in the aquatic ecosystems affected by the increased water temperature
Species diversity in aquatic ecosystems is significantly affected by the increased water temperature. This is because warm water holds less dissolved oxygen than cool water, and may not contain enough dissolved oxygen for the survival of different species of aquatic life.
What is an ecosystem?An ecosystem may be defined as a type of place or an area where members of different species live together and interact with one another for the purpose of food, shelter, space, mating partner, and other resources.
The solubility of oxygen and other gases will decrease as temperature increases. This means that colder lakes and streams can hold more dissolved oxygen than warmer waters. If water is too warm, it will not hold enough oxygen for aquatic organisms to survive.
Some compounds are also more toxic to aquatic life at higher temperatures. So, warm stream water is can affect the aquatic life in the stream.
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