Strontium powder would ignite in a dark red flame, and potassium powder would result in a lavender-pink flame.
What is Potassium Powder?
Potassium is a mineral that may be found in a variety of foods and is essential for numerous bodily processes, most notably the heartbeat.
Low potassium levels in the blood can be prevented or treated with potassium chloride (hypokalemia).
Potassium levels can become low due to sickness, medication side effects, or after a protracted illness accompanied by diarrhoea or vomiting.
Low blood potassium levels can be treated and prevented by taking potassium chloride, sometimes referred to as potassium salt. Vomiting, diarrhoea, or certain drugs can all lead to low blood potassium levels. Before using, dilute the concentrated form. It can be administered orally or slowly injected into a vein.
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why do acids react with carbonates?
Answer:
This is because the carbonate ion (CO32-) is a base, and when it reacts with an acid, it neutralizes the acid and forms a salt. The carbon dioxide that is produced is a byproduct of this reaction.
Explanation:
The reaction between an acid and a carbonate can be represented by the following general equation:
Acid + Carbonate --> Salt + Water + Carbon Dioxide
For example, the reaction between hydrochloric acid (HCl) and sodium carbonate (Na2CO3) can be written as:
HCl + Na2CO3 --> 2NaCl + H2O + CO2
In this equation, hydrochloric acid and sodium carbonate react to form sodium chloride (table salt), water, and carbon dioxide.
It's important to note that not all acids will react with carbonates. For example, sulfuric acid (H2SO4) is a strong acid, but it does not react with carbonates. This is because sulfuric acid is a strong dehydrating agent and will remove water from the reaction, preventing the formation of carbon dioxide.
An organic compound of molecular formula c3h6o there are 2 compound having ame formula A ha fruity mell while B releae hydrogen with mg identify a and b and give chem reaction for the proce involved and ugget a method to convert b to a and what relation between A and B why
Structural and Organic Formula of Acetone: Acetone Formula (C3H6O) (Propanone) So, Both propanal and propanone are isomers of the substance having the chemical formula C 3 H 6 O.
What is the straightforward meaning of compound?A substance in science that is created through the chemical joining of two or more distinct elements Table salt (NaCl), which is derived from the elements sodium and chloride, and water (H2O), which is created from the elements hydrogen and oxygen, are two examples of compounds.
Why is water a compound?Because water molecules make up its composition, water is a compound. Atoms made of water don't exist. Hydrogen and oxygen atoms are found in a certain ratio of two hydrogen atoms to one oxygen in the structure of water molecules.
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This is the amino group of an amino acid.
This is the R group of an amino acid.
A protein has been made from the polymerization of amino acids. ;
O A nucleic acid has been made from the polymerization of nitrogenous bases
From the given conditions in the question, it is evident that a protein has been made from the polymerization of amino acids.
What are amino acids?
Amino acids are defined as the substances which are considered to be the monomers of proteins.Every amino acid has the same structure consisting of a central carbon which is bonded to an amino group , carboxyl group and a hydrogen.
Each amino acid also has another atom or a group of atoms bonded to the alpha carbon which are also known as the R group or the variable group of the side chain.There are 20 common amino acids present in natural proteins and each amino acid has the same backbone.
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when (r)-butan-2-ol is treated with tscl in pyridine, the product formed is: group of answer choices a mixture of diastereomers. an achial compound. none of the above a racemic mixture. a single enantiomer.
when (r)-butan-2-ol is treated with tscl in pyridine, the product formed is the single enantiomer.
When the (r)-butan-2-ol is treated with tscl in pyridine, the product formed is the single enantiomer. the single enantiomer are also called as the single isomers or the stereoisomers. the enantiomers are the pair of the molecules or compound that will exist in the two forms that are the mirror image of the each other but they are not superimposable mirror to each other. the images which are the superimposable mirror image to each other is called as achiral compound.
Thus, a single enantiomer is formed as the product when the (r)-butan-2-ol is treated with tscl in pyridine.
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in order for a complex ion to form, what must be true about the formation constant of the ion and the solubility product of the ionic solid? fill in the blank with < or > or
The overall formation constant is 1.11*10¹³.
What is ion ?
An atom or collection of atoms that is classified as an ion has a different number of electrons than proton atoms.
What is solubility ?
A substance's solubility is the greatest amount that will dissolve in a given amount of solvent at a given temperature. A specific solute-solvent combination's solubility is a defining trait, and the solubilities of various compounds can vary significantly.
The complex [Ni(en)3]2+ is more stable than the complexes [Ni(NH3)6]2+ and [Ni(H2O)6]2+.
Steric hindrance of ligands will generally reduce the value of the formation constant.
The coordination number of the central metal ion is related to the formation constant of the complex.
Therefore, the overall formation constant is 1.11*10¹³.
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for how many of b2, c2, p2, and f2 does bond order decrease if one electron is removed from the neutral molecule?
As bond order decreases in b2, c2 and p2 but increases in f2, 3 of them will decrease bond order.
What is bond order?Bond order is defined in chemistry by Linus Pauling as the difference between the number of bonds and anti-bonds. The number of electron pairs (covalent bonds) between two atoms is the bond order.
For example, the bond order between the two nitrogen atoms in diatomic nitrogen NN is 3. (triple bond). The bond order between the two carbon atoms in acetylene is also 3, and the C-H bond order is 1. (single bond).
The bond order between carbon and oxygen in carbon monoxide CO+ is three. The bond order between sulphur and nitrogen in thiazyl trifluoride NSF3 is 3, while the bond order between sulphur and fluorine is 1. The bond order in diatomic oxygen O=O is 2 (double bond).
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2 Bond Order Reduction Elements are always made up of just one type of atom, however molecules can include only one type of atom if one electron is removed from the neutral molecule.
Definition of a molecule
The smallest unit of a substance that retains its composition and properties is a molecule. It is constructed of two or more atoms connected by chemical bonds. Moles are the foundation of chemistry.
Is a molecule an ionic bond?
A molecule, which is a grouping of three or more atoms, is the largest recognized unit into which a pure substance may be divided while keeping its makeup and chemical reactivity.
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chlorofluorocarbons: select one: a. react to destroy ozone. b. are beneficial for the environment. c. react to produce ozone. d. combine with dust particles to form aerosols that cool the earth.
Option A, chlorofluorocarbons(CFC) react to destroy ozone. This leads to various harmful activities on the earth like global warming.
When gaseous CFCs slowly ascend into the stratosphere, are oxidized by strong UV light, release chlorine atoms, and then interact with ozone molecules, they can weaken the ozone layer. Chlorofluorocarbons (CFC) come into touch with the Ozone layer as they rise upward and toward the stratosphere. As a result, the chlorofluorocarbons(CFC) molecules are split apart by UV light, releasing chlorine atoms that can destroy ozone molecules in a chemical process. The stratospheric ozone protects against ultraviolet rays.
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This data table shows how quickly rope will rot away in freshwater and saltwater. what can you conclude about the rates of the rotting reaction?
A. The reaction occurs more slowly when the concentration of salt is higher.
B. The reaction occurs more quickly when the concentration of salt is higher.
C. The reaction occurs at the same rate, regardless of the concentration salt.
D. There is not enough information to conclude anything about the reaction rates.
Answer:
b
Explanation:
the higher the salt, the decay becomes 6 years faster
also sorry if the answers wrong
In a distillation process which liquid component of the mixture passes through the condenser first
a. true
b. false
TRUE, In a distillation process the one with the lower boiling point liquid component of the mixture passes through the condenser first
Simple distillation, as opposed to fractional distillation, is used to separate constituents in combinations with extremely different boiling temperatures. Fractional distillation is used for mixes comprising compounds with equivalent boiling points. Equipment for simple distillation consists of a distillation flask connected to a condenser. In contrast, the apparatus used for fractional distillation is the same as that for simple distillation with the exception of the installation of a second fractionating column between the condenser and the distillation flask. Fractional distillation employs a challenging apparatus called a fractionating column. A flask to contain the mixture, a condenser, and a flask to gather the purified components are the only components needed for the setup. Fractional distillation is used in the refinement of crude oil.
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which phenomenon that goes unexplained by lewis structures is solved by applying molecular orbital theory?
a. bond angles
b. ionization energy trends
c. none of the above
If you use the molecular orbital theory, option C, which is the paramagnetism of oxygen particles, you can explain the odd thing that Lewis structures can't explain.
The fact that oxygen particles are paramagnetic doesn't make sense in terms of Lewis structure. Since oxygen atoms have two electrons that don't have a partner, only molecular orbital theory can explain why oxygen particles are paramagnets. A Lewis structure is a much better way to show how the electrons in a particle's valence shell are arranged. It is used to show how the electrons around the different atoms in a particle are arranged. Electrons are shown as "dabs" or as a line running between two particles. In his cubical particle hypothesis, Lewis came up with the "octet rule." The octet rule is based on the fact that iotas tend to like having eight electrons in their valence shell. When molecules have fewer than eight electrons, they usually react by making more stable mixtures. Atoms will act to get into the most stable state possible.
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In double replacement reactions, why will two metals not combine with each other when products are
formed?
A metals form negative ions and like charges attract
B metals form positive ions and like charges do not attract
Cmetals form negative ions and like charges do not attract
D metals form positive ions and like charges attract
In double replacement reactions, two metals not combine with each other when products are formed because, metals form negative ions and like charges attract. Therefore, option A is correct.
What is metal ?A metal is a substance that exhibits a shiny appearance when freshly processed, polished, or shattered, and conducts electricity and heat rather well. Generally speaking, metals are malleable and ductile.
We use the (s) symbol for solid because salt is an insoluble substance that will not dissolve in water. The silver, fluoride, potassium, and chloride ions would have effectively moved to a new location if there had been no precipitate formation, but they would still be floating around as ions. In this instance, nothing happens.
When two ionic compounds exchange ions and create two new ionic compounds, this is known as a double replacement reaction.
Thus, option A is correct.
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prepare a detailed flow sheet for the isolation and purification of 1-bromobutane. help
Here is a detailed flow sheet for the isolation and purification of 1-bromobutane:
Start with a sample of 1-bromobutane, which can be synthesized from butane through a bromination reaction.
Dissolve the 1-bromobutane in a solvent such as diethyl ether or hexane.
Extract the 1-bromobutane from the solvent using a separatory funnel. This can be done by adding a small amount of water to the solvent mixture and shaking it vigorously to allow the 1-bromobutane to dissolve in the water. The 1-bromobutane will then separate from the solvent as an upper layer.
Drain the upper layer of 1-bromobutane into a clean container, being careful to leave any impurities behind in the separatory funnel.
Dry the 1-bromobutane by adding anhydrous magnesium sulfate or another drying agent to the container and stirring the mixture until the drying agent has absorbed any moisture.
Filter the 1-bromobutane through filter paper to remove any solid impurities.
Distill the 1-bromobutane to purify it further. This can be done by heating the 1-bromobutane in a distillation setup and collecting the distillate as it comes off the still. The 1-bromobutane will boil at a higher temperature than most impurities, so it will be collected in a separate fractions.
Once the 1-bromobutane has been distilled, it can be collected and stored for future use. It is important to handle 1-bromobutane with care, as it is flammable and can be harmful if inhaled or ingested.
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Here is a detailed flow sheet for the isolation and purification of 1-bromobutane:
Start with a sample of 1-bromobutane, which can be synthesized from butane through a bromination reaction.
Dissolve the 1-bromobutane in a solvent such as diethyl ether or hexane.
Extract the 1-bromobutane from the solvent using a separatory funnel. This can be done by adding a small amount of water to the solvent mixture and shaking it vigorously to allow the 1-bromobutane to dissolve in the water. The 1-bromobutane will then separate from the solvent as an upper layer.
Drain the upper layer of 1-bromobutane into a clean container, being careful to leave any impurities behind in the separatory funnel.
Dry the 1-bromobutane by adding anhydrous magnesium sulfate or another drying agent to the container and stirring the mixture until the drying agent has absorbed any moisture.
Filter the 1-bromobutane through filter paper to remove any solid impurities.
Distill the 1-bromobutane to purify it further. This can be done by heating the 1-bromobutane in a distillation setup and collecting the distillate as it comes off the still. The 1-bromobutane will boil at a higher temperature than most impurities, so it will be collected in a separate fractions.
Once the 1-bromobutane has been distilled, it can be collected and stored for future use. It is important to handle 1-bromobutane with care, as it is flammable and can be harmful if inhaled or ingested.
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A substance is followed by the symbol (I) in a chemical equation what does the symbol represent
Answer:
It's a liquid
Explanation:
The (l) is one of the four state symbols. You also have (s) for solid, (g) for gas and (aq) for aqueous - something in a solution. Hope this helps!!
Answer:
liquid
Explanation:
the scientific symbol of liquid is represented by l
a student weighed out 3.87g of h2ptcl6 and added it to water. how many moles of the compound did the student add to water
A student weighed out 3.87g of H₂PtCl₆ and added it to water. 9.44 × 10⁻³ moles of the compound the student added to water.
Mass of H₂PtCl₆ = 3.87 g
The molar mass of H₂PtCl₆ = 410 g
Number of moles of H₂PtCl₆ = ?
We will calculate the number of moles of H₂PtCl₆ by using the following formula.
Number of moles = mass of compound / molar mass of the compound
Put the values in the above formula
Number of moles of H₂PtCl₆ = 3.87 g / 410 g / mol
Number of moles of H₂PtCl₆ = 3.87/ 410 mol
Number of moles of H₂PtCl₆ = 0.00944 mol
Number of moles of H₂PtCl₆ = 9.44 × 10⁻³ mol
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a sample of douglas fir sapwood had a wet weight of 1315.8 g and an oven-dry weight of 612 g. calculate the moisture content of the sapwood and determine if it is a reasonable value.
The natural outdoor usage of the wood does not exceed a moisture content of 19% .Hence, it is not a reasonable value.
Given wet weight of wood = 1315.8g
Oven dry weight = 612g
Moisture content MC% = (Wet weight of wood - Weight of Oven dry wood) / Weight of Oven dry wood × 100
(1315.8 - 612) / 612 x 100
= 703.8 / 612 x 100 = 115%
In the normal use, the moisture content of wood varies between 8% and 25% by weight. The natural outdoor usage of wood does not exceed a moisture content of 19%. Hence, it is not a reasonable value.
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A 100-w lightbulb generates 95 w of heat, which is dissipated through a glass bulb that has a radius of 3. 0 cm and is 0. 50 mm thick. What is the difference in temperature between the inner and outer surfaces of the glass?.
The temperature difference between inner and outer surfaces of the glass is 21°C.
What is coefficient of thermal conductivity?
The thermal conductivity coefficient k is a material parameter depending on temperature, physical properties of the material, water content, and the pressure on the material. The coefficient k is measured in watts per meter Kelvin (or degree) (W/mK).
According to the given question:
Heat generated by bulb in one second, H = 95 W
Radius = 3 cm = 0.03 m, Area = 3.14 x 0.03 x 0.03 = 2.826 x 10^-3 m^2
Thickness, d = 0.5 mm = 0.5 x 10^-3 m
Coefficient of thermal conductivity of glass, K = 0.8 W/mK
Let ΔT be the temperature difference between inner and outer surface.
H = K A ΔT / d
95 = 0.8 x 2.826 x 10^-3 x ΔT / (0.5 x 10^-3)
ΔT = 21 °C
Thus, the temperature difference between the inner and outer surface of the bulb is 21 °C.
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I a type of repiratory hazard which uually conit of gaeou material and particulate and reult from operation uch a paint praying
Particulate Contamination Workplace Respiratory Hazards is a type of respiratory hazard which usually consist of gaseous material and particulate and result from operation such paint praying.
Respiratory hazard is a type of hazard being exposed to worker of employees in a certain condition and situation in his/her workplace ranging from lack of oxygen as well as exposure of hazardous materials such as gas, dust, mites, fumes, smokes, and contamination such as biological (viral and bacterial) contamination, etc which may result in a respiratory disease and problems. There are four types of respiratory hazards namely Oxygen-deficient hazard, gas or vapor respiratory hazard, particulate contamination respiratory hazard, and biological contamination hazard.
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Your question seems to be missing but I assume your question was:
"________ is a type of respiratory hazard which usually consist of gaseous material and particulate and result from operation such paint praying."
Which choice is not true of a liquid in a glass capillary with a convex meniscus?
The liquid has strong cohesive forces.
The liquid level will be lower inside the capillary when a capillary is inserted into a bowl of the liquid.
The liquid will have a convex meniscus as it moves in the capillary.
The behavior of the liquid is driven by strong interactions with the capillary glass.
The decision is not valid for a liquid in a glass capillary with a convex meniscus since the liquid's behavior is strongly influenced by its interactions with the glass. As a result, choice D is right.
Describe glass capillary.Glass capillaries have external sizes that range greatly, from 0.1 mm to 2.0 mm. For the purpose of gathering x-ray data, they are designed to mount, hold, and store biological macromolecular crystals as well as small molecules.
The water in a thin tube submerged in water rises due to the forces of attraction between the water molecules and the glass walls as well as the water molecules themselves.
The gravitational pull of the water column, which has risen to a characteristic height, is only balanced by these attractive forces.
Therefore, choice D is correct.
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when a gas expands, what is the sign of ? why? when a gas contracts, what is the sign of ? why? what are the signs of and for the process of boiling water?
When a gas expands, the sign of w is negative.
When a gas contracts, the sign of w is positive.
The sign of w for the process of boiling water is negative.
In the first law of thermodynamics, the energy of the universe is constant. A system can change its internal energy through a flow of work, heat, or both, and therefore the total amount of heat energy and the total amount of work energy that goes in or out must be equal to the total internal energy change of the system (ΔE).
∆E = q + w
ΔE = change in internal energy
q = heat
w = work energy
When we add a property to the system from the surroundings, the sign is positive and when the system adds a property to the surroundings the sign is negative.
As the gas expands, the system does work on the surroundings so w is negative. As gas contracts, the surroundings do work on the system so w is positive. H2O(l) → H2O(g);To boil water, heat must be added so that q is positive. The molar volume of a gas is huge compared to the molar volume of a liquid. As a liquid converts to a gas, the system will expand its volume, performing work on the surroundings; w is negative.
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what is the net ionic equation when an aqueous solution of silver nitrate is added to an aqueous solution of sodium carbonate?
Ionic equation is :-Na2CO3(aq) + Mg(NO3)2 (aq) → MgCO3(s) + 2NaNO3 (aq)
Now ,the full ionic equation .
2Na+(aq) + CO3 2-(aq) + Mg2+(aq) + 2NO3-(aq)→MgCO3(s) + 2Na+(aq) + NO3- aq)
Then you can also write net ionic equation, remains is the net ionic equation are:-CO3 2- (aq) + Mg 2+(aq) → MgCO3(s)
What can we infer from the net ionic equation?A complete ionic equation also contains the spectator ions, whereas a net ionic equation just displays the chemical species that are involved in a reaction.
How does the reaction NaCl aq)+ agno3 AQ)-> nano3 aq)+ AgCl S work?AgNO3 and NaCl react to form AgCl (silver chloride) and NaNO3 (sodium nitrate) when exposed to sodium chloride (NaCl) and AgNO3 (silver nitrate). A twofold displacement reaction would look like this.
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What is the difference of 5 1/4 and 1 3/4
the decomposition of ozone to oxygen 2o3 to 3o2 what is the elemental composition and net charge of the activated complex for the rate determining step of this reaction
The amount of reactant and product that changes per unit of time is the rate expression for the reaction. The change in reactant and product concentration over time is depicted by the rate expression.
Although it is unnecessarily simplified, the rate expression (3.35) has been found to be extremely useful in many situations. Let's define a basic reaction so that we can continue our conversation. A reaction is considered to be elementary if the reactants (or reacting molecules) always respond stoichiometrically. For instance, in an elementary reaction, A and B can spontaneously transform into C when they come into contact without needing to do any further action. Therefore, idealised reactions or reaction stages are considered elementary reactions.
The rate of disappearance of ozone is the rate of difference of O3 is divided by 2.
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What are properties of basic oxide
a multiple dilution is performed on a sample with initial concentration of 1650 mg/dl. five tubes are used in the dilution. the sample is diluted 1/5 (tube 1), 1/2 (tube 2), 1/4 (tube 3), 1/5 tube 4), 1/10 (tube 5). what is the diluted concentration in each tube?
Five tubes with initial concentration of 1650 mg/dl , are used in the dilution. The diluted concentrations in each tube are 330 mg/dl, 825 mg/dl, 412.5 mg/dl, 330 mg/dl, and 165 mg/dl, respectively.
A multiple dilution is a process of diluting a sample with a known concentration to create a series of dilutions that can be tested further. In this case, a sample with an initial concentration of 1650 mg/dl is to be diluted in five tubes. The dilution concentrations are 1/5 (tube 1), 1/2 (tube 2), 1/4 (tube 3), 1/5 (tube 4), and 1/10 (tube 5).
To calculate the diluted concentration in each tube, the initial concentration must be multiplied by the dilution factor. The dilution factor is the inverse of the dilution ratio. For example, for a 1/5 dilution, the dilution factor is 5.
The diluted concentration in each tube is then as follows:
Tube 1: 1650 mg/dl x 1/5 = 330 mg/dl
Tube 2: 1650 mg/dl x 1/2 = 825 mg/dl
Tube 3: 1650 mg/dl x 1/4 = 412.5 mg/dl
Tube 4: 1650 mg/dl x 1/5 = 330 mg/dl
Tube 5: 1650 mg/dl x 1/10 = 165 mg/dl
Therefore, the diluted concentrations in each tube are 330 mg/dl, 825 mg/dl, 412.5 mg/dl, 330 mg/dl, and 165 mg/dl, respectively.
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pressure has little effect on the solubility of liquids and solids because they are almost incompressible.truefalse
The right answer is true. It is accurate to say that because liquids and solids are almost incompressible, pressure has little impact on their solubility.
We are aware that the concept of compressibility refers to how the study object's qualities can alter simply by applying pressure on it. Whether or not a solid, liquid, or gas can have a solubility that is influenced by the substance's pressure depends on the compressibility factor. We must keep in mind that when we discuss pressure in science, our thoughts must immediately turn to the force per unit area of the substance that is being investigated in each specific example. Because the solid and liquid have a fixed volume while the gas does not, the gas will take on the volume of the container it is carried in, proving that the solid and liquid are less compressible than the gas.
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It is accurate to say that because liquids and solids are nearly incompressible, pressure has minimal impact on their solubility.
Pressure has very little or no impact on how easily particles dissolve in liquid. This is due to the fact that solids and liquids are largely unaffected by changes in pressure due to their incompressibility. The solubility, which depends on gas pressure, is a measurement of the concentration of dissolved gas particles in the liquid. A gas's solubility increases with higher pressure while falling with lower pressure because of an increase in collision frequency. · The solubility of liquids and solids is mostly unaffected by external pressure. The concentration of dissolved gas molecules in the solution at equilibrium is higher at higher pressures because the concentration of molecules in the gas phase rises with increasing pressure.
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Commercial grade hcl solutions are typically 39. 0% (by mass) hcl in water. Determine the molarity of the hcl if the solution has a density of 1. 20 g ml-1.
The molarity of a commercial grade of HCl solution with a density of 1.20 g/ml is 12.8 M.
What is molarity?The term "molar concentration" (also known as "molarity," "amount concentration," or "substance concentration") refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution.
The most common measure of molarity in chemistry is the number of moles per litre, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M. The most popular unit of measurement for molal concentration or molarity is moles of solute per litre of solution.
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why is the dough fermented and proofed? at what temperature should fermentation take place, ideally?
Because it improves food preservation and breaks down the sugars in the dough, the dough is fermented and proofed.
The ideal temperature for fermentation is 85° F.
What is fermentation?
Anaerobic degradation of molecules like glucose occurs chemically during fermentation.
What is proofing?
When making yeast bread and other baked goods, the process of proving involves letting the dough rest and rise one last time before baking. While the dough is resting, yeast ferments it and releases gases, leavening the dough.
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What is the relationship between the temperature and the rate of the reaction?
Positive
Negative
Neutral
The relationship between the temperature and the rate of the reaction is positive (option A).
What is a positive relationship?A positive relationship is one in which both variables tend to move in the same direction i.e. if one variable increases, the other tends to also increase. If one decreases, the other tends to also.
According to collision theory, a chemical reaction that takes place at a higher temperature generates more energy than a reaction at a lower temperature.
This is because colliding particles will have the required activation energy at high temperature and more successful collisions will take place.
The rate of of a reaction refers to the speed at which a chemical reaction occurs i.e. the conversion of reactants to products.
Therefore, a positive relationship exists between temperature and rate of a reaction.
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the computer chip is made of silicone compound. explain the suitability of the silicone compound to make the chip.
Answer:
computer is a device used to make work easy and comfort
What causes the electron groups around a central atom to similarly spread out as much as possible?
Answer:
The repulsion between negatively charged electron pairs in bonds or as lone pairs causes them to spread apart as much as possible.