In following way we can create the question:
How does dissolving a salt molecule in the water make its atoms ionize?
Dissolving a salt molecule in the water does not make its atoms ionize. The atoms in the solid salts are already ionized long before touching the water.
Electrons in an atom can only take on the specific wave states, and only one electron can occupy one wave state at a time. As a result, electrons in an atom take different states, starting from lowest energy state and going upwards in energy until the electrons have all found distinct states. For various reasons that are not worth mentioning here, electron states in the atoms tend to form various groups, with the states in the same group having very similar energies and states. Chemists call these groups of electron states "shells", even though they have nothing to do with the literal shells.
What is an electron?The electron is a subatomic particle (denoted by symbol e− or β−) whose electric charge is negative one elementary charge. Electrons belong to first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron's mass is approximately 1836 times smaller than that of proton. Quantum mechanical properties of electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, ħ. Being fermions, no two electrons can occupy same quantum state, in accordance with the Pauli exclusion principle.
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Flammability, and the ability to corrode, are examples of
F properties of noble gases
G physical properties
H physical changes
J chemical properties
Flammability, and the ability to corrode, are examples of J chemical properties.
Flammability a chemical property :The ability of a chemical to burn or ignite, resulting in fire or combustion, is referred to as flammability. Fire testing determines the degree of difficulties involved required to cause a chemical to burn. Materials are typically classified as highly flammable, flammable, or non-flammable.
Chemical properties :A chemical property is any property of a material that emerges during or after a chemical reaction; that really is, any quality that can only be established by changing a substance's chemical identity. A chemical property is the ability or inability to change one type of matter into another. Chemical properties involve flammability, toxicity, acidity, reactivity (of various kinds), and heat of combustion.
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Sheets composed of two layers of amphipathic molecules arranged with the hydrophilic groups on the surface and the hydrophobic groups buried in the center that form in water are called?
The hydrophobic groups buried in the center that form in water are called bilayer membranes
What is a bilayer in chemistry?The lipid bilayer (or phospholipid bilayer) may be a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form endless barrier around all cells
What does bilayer membrane do?The purpose of the bilayer membrane is to separate the cell contents from the outside environment. the surface of the cell is mostly water and the inside of the cell is mostly water
Why is cell wall a bilayer?A cell wall is a bilayer because it is made up of 2 layers of lipids. The heads of the lipids are faced towards the opposites sides (the inside and out of doors of a cell) while the tail (the 2 fatty acids) are inside the layer facing each other
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A silver coin and a gold coin each have a mass of
exactly 6.6 grams. The specific heat of silver is
0.235 J/g•°C, and the specific heat of gold is
0.130 J/g-°C. Which coin requires more heat to raise its
temperature by 40°C?
The unit of measurement for specific heat is Joules per g times degree Celsius.
Similar to density, color, etc., specific heat is an intense feature that is independent of the amount of a substance present. This enables the use of heat specificity to identify compounds.
q = mcT, where q is the quantity of heat applied, m is the mass of the substance, c is its specific heat, and T is the temperature change.
Therefore, we can simply isolate the term in the calculation above to get c=qmT if we wish to find the units for specific heat.
We may calculate that c = JgC since heat is measured in Joules (J), mass in grams (g), and degree Celsius (C).
As a result, the unit of measurement for specific heat is Joules per g times degree Celsius.
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draw every enol and enolate ion that can arise from the given carbonyl compound. draw the oxyanion species; do not draw carbanion resonance forms.
The diagram is in the given picture. Ketones are more reactive towards the base than aldehydes.
On using a base, the bottom abstracts a proton from alpha hydrogen to form a carbanion. Carbanion formed is stabilized because the negative charge formed participates in resonance with the carbonyl group.
What is the carbonyl group?
A group consists of a double bond linking a carbonyl carbon atom and a carbonyl oxygen atom. The carbonyl oxygen atom shares two of its six valence electrons with the carbonyl atom. Its remaining four valence electrons remain as two sets of electron lone pairs.
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A radioactive substance has a half-life of 5,000 years. if the original sample contained 20 grams of the radioactive isotope, how much remains after 5,000 years have elapsed?
The answer would be 25% remains left i.e., a radioactive substance has a half life of 5000 years, if the original sample contained 20 grams of the radioactive isotope, 25% will remains after 5000 years elapsed.
In this question (t1/2) is 5000 years , which refers that after 5000 years is half of the sample would have decayed and half would be left as it is.
Given , 20 g sample .
After 5000 years ( first half life) 20/2 = 10 g decays and 10 g remains left.
Two half lives or 5000 years 10 /2 = 5 g decays and 2.5 g remains left .
so we started with 20 g and after 5000 years 5 g of the sample will be left not decayed.
Percentage of sample left = mass of sample left x 100 / original mass of sample
Percentage of sample left = 5 g x 100 / 20g = 25 %
In conclusion, 25% remains after 5000 years have elapsed.
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Magnesium oxide decomposes into magnesium and oxygen. If 8. 06 g of magnesium oxide decomposes to form 4. 86 g of magnesium, what mass of oxygen gas is also released in the reaction?
The mass of oxygen gas released is 3.2grams.
From the above decomposition reaction, the chemical notation of reaction is given by,
2MgO = 2Mg + O₂
From above reaction, we can say that 2 moles or 80.6 grams of Mg decomposes to give 2 moles or 48.6 grams of Mg and 1 mole or 32 grams of O₂.
So 8.06 gram of MgO will give (8.06 × 32) / 80.6
= 3.2 grams of oxygen gas.
Thus the amount of oxygen gas released is 3.2grams.
Decomposition reaction occur when complex chemical entities breakdown into smaller components. Decomposition reactions often demand energy input.
The digestion of food in our bodies is a typical illustration of the decomposition response. Here, food components including proteins, lipids, and carbs will break down into a variety of easier and more compact parts.
Decomposition reaction is classified into three types, they are thermolysis, electrolysis and photolysis.
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Critique this: Substances are made of two or more types of elements
Compounds can be created by chemically combining elements, hence a compound is made up of two or more elements combined in specific ratios. Ionic or covalent bonds between the atoms of constituent elements can be used to create compounds.
What are substances, exactly?
A matter with certain qualities and makeup is referred to as a substance. Every pure element and compound counts as a substance. Pure substance made of hydrogen and oxygen is called water, or H2O. Each homogenous pure substance exists.
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comparative analysis of binary similarity measures for compound identification in mass spectrometry-based metabolomics
Analyze the effectiveness of binary similarity techniques for identifying compounds in untargeted metabolomics.
What is mass spectrometry metabolomics?
Many thousands of metabolite characteristics can be simultaneously detected and quantified using mass spectrometry-based metabolomics methods. However, because of the metabolome's chemical complexity and wide dynamic range, compound identification and accurate quantification are far more difficult.
Many thousands of metabolite characteristics can be concurrently detected and quantified using metabolomics technologies based on mass spectrometry. Due to the metabolome's chemical complexity and dynamic range, molecule identification and accurate quantification are, nonetheless, extremely challenging tasks.
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select all the true statements. the k k ion is formed when a potassium atom loses one electron. when an atom gains an electron, it becomes a cation. the fe2 fe2 and fe3 fe3 ions have the same number of protons. the cu cu and cu2 cu2 ions have the same number of electrons. the cl−cl− and br−br− ions have the same number of electrons. anions carry a positive charge.
The true statements are: the K⁺ ion is formed when potassium loses one electron.
The Fe⁺² and Fe⁺³ ions have same number of protons.
1) The K⁺ ion is formed when potassium loses one electron.
When an atom loses one electron then it gets a positive charge on it that is why statement 1 is correct.
2) When an atom gains an electron, it becomes a cation.
When an atom gains an electron it becomes an anion so statement 2 is incorrect.
3) The Fe⁺² and Fe⁺³ ions have same number of protons.
Whenever an atom loses or gain electrons then they get charge on them but that changes the number of electrons present in it and not the number of protons in them. So, statement 3 is correct.
4) The Cu and Cu²⁺ ions have the same number of electrons.
When an atom gains electrons then the number of electrons in it changes. So, statement 4 is incorrect.
5) The Cl⁻ and Br⁻ ions have the same number of electrons.
They do not have same number of electrons so it is incorrect.
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Explain how a student would properly obtain 0.250 grams of silver nitrate from a hollow glass stoppered reagent bottle.
To obtain 0.250g of silver nitrate, we make a solution of 0.00147M of 1L.
What is a hollow glass stoppered reagent bottle?
Product has a narrow mouth and a replaceable hollow hexagonal glass stopper. Reagent bottles are borosilicate glass containers with unique glass stoppers on top. They are also known as media bottles or graduated bottles. They are designed to hold chemicals for laboratories in liquid or powder form, where they will be housed in cabinets or on shelves.
Mass of silver nitrate (solute): 0.250g
Moles of silver nitrate: 0.00147
Molarity of the solution: 0.00147M
So to obtain 0.250g of silver nitrate, we make a solution of 0.00147M of 1L.
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What would be the expected ph if you were to add 150 ml of 0.1 n naoh to 200 ml of 0.1 m formic acid and then bring the solution up to 1 l?
The pH of solution will reach upto 4.22 after bringing the solution to 1L.
The reaction is HCOOH + NaOH ----> HCOONa + H2O
What is pH?
Since the pH of a substance is essentially a measurement of the concentration of hydrogen ions (or protons), the letters pH stand for potential of hydrogen. Biologist Sren Peter Lauritz Srensen created the pH scale in 1923. (1868-1969).
Potential of Hydrogen is what pH is formally known as.The definition of pH as the quantity of hydrogen is given as the negative logarithm of the concentration of H+ ions. The hydrogen ion concentration in a solution is described by the pH scale, which also determines how acidic or basic a solution is.
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What is the density of an unknown metal object if its mass is 53.72 g and it displaces 7.9 ml of water?
The density of an unknown metal object if its mass is 53.72 g and it displaces 7.9 ml of water is 6.8 g/mL.
What is Density?Density may be defined as a type of physical property that significantly deals with the description of how much space an object or substance takes up with respect to the amount of matter in that object or substance.
In a more simple sense, it is characterized as the measurement of quantity or mass per unit of volume in a particular substance.
According to the question,
The mass of the metal object = 53.72 g.
The volume of the metal object = 7.9 ml.
The formula for calculating the density is as follows:
Density = Mass/Volume.= 53.72 g / 7.9 ml = 6.8 g/mL.
Therefore, the density of an unknown metal object if its mass is 53.72 g and it displaces 7.9 ml of water is 6.8 g/mL.
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The ______________________ is used to detect an increase in ph from 4.4 to 6.0 as mixed acids are further catabolized to form the neutral product ________________.
As mixed acids continue to be catabolized to produce the neutral product, the methyl red test is used to gauge the pH shift from 4.4 to 6.0.
The pH scale is used to determine an aqueous solution's acidity or basicity. Historically, pH stood for "potential of hydrogen" (or "power of hydrogen"). In comparison to basic or alkaline solutions (solutions with higher concentrations of H+ ions), acidic solutions have lower pH values measured.
The hydrogen ion concentration in the solution is inversely proportional to the pH scale's logarithmic scale. The origin of the pH scale can be traced to a collection of standard solutions whose pH has been established by consensus on a global scale. Utilizing a concentration cell with transference, the primary pH standard values are computed by measuring the potential difference between a hydrogen electrode and a standard electrode, such as the silver chloride electrode.
Methyl red is a pH indicator with a pKa of 5.1; it is red at pH values below 4.4, yellow at pH values over 6.2, and orange at pH values in the middle. As potential boosters of the sonochemical annihilation of chlorinated hydrocarbon contaminants, murexide and methyl red are being studied.
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what is the mass (in grams) of chlorine required to react with 10.0 g of sodium metal to produce sodium chloride?
The mass of chlorine required to react with 10.0 g of sodium metal to produce sodium chloride is 15.26 g.
The balanced chemical reaction is :
2Na + Cl₂ → 2NaCl
Given data :
Mass of sodium = 10.0 g
Number of moles of Na -
Number of moles = Given mass
Molar mass
Number of moles = 10.0 g = 0.43 mol
23 g
Comparing moles of Na and Cl₂ from the balanced chemical equation,
Na : Cl₂
2 : 1
0.43 : 1 x 0.43 = 0.215 mol
2
Mass of chlorine gas :
(molar mass of chlorine = 71 g)
Mass of chlorine = number of moles x molar mass
Mass = 0.215 mol x 71 g/mol
= 15.26 g
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how much negative charge is on each oxygen of the carbonate ion? −2.00 −0.33 −0.50 0 −1.00 −1.67 −1.33 −0.67 −1.50
The negative charge on each oxygen of the carbonate ion is -0.67 among the given options.
In this problem, when we look at the carbonate ion, firstly we need to look at how much negative charge is carried on the oxygen. Carbonate ion, (CO₃)²⁻ has two negative charges and there are three oxygen. So, -0.67 is the charge on each oxygen of carbonate ion.
Since, there are three oxygen in a carbonate ion, charge is divided as -
O O⁻ O O⁻
║ | ║ |
C ↔ C ↔ C → C
/ \ / \\ / \ / \
⁻O O⁻ ⁻ O O ⁻O O⁻ ⁻O O⁻
Negative charge for each oxygen will be -
-2/3, because two negative charges are divided by 3 oxygen.
Therefore, negative charge on each oxygen = -2/3 = -0.67
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1. what is the expected empirical formula for the compound that forms between zinc andiodine?2. write the balanced chemical equation for the reaction between zinc and iodine to formzinc iodide.3. empirical determination formula practice: determine the empirical formula of acompound composed of 1.714 g of hydrogen and 13.72 g of oxygen.
1. The empirical formula is ZnI₂.
2. Balanced chemical equation for the reaction between zinc and iodine to form zinc iodide.
Zn + 2I → ZnI₂
3. To find empirical formula, we have to do following steps.
Step 1: Write given atoms.
Step 2: Write given masses of corresponding atoms.
Step 3: In next step atomic masses are written respectively.
Step 4:Number of moles is calculated using,
Number of Mole= Given mass/Molecular mass
Step 5: Mole ratio is obtained by dividing with smallest mole.
Empirical formula of given problem is H₂O.
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A 2-lb sample of an unknown liquid occupies a volume of 62.6 in3. for the liquid determine (a) the specific volume in ft3/lb and (b) the density in lb/ft3
The specific volume of the sample is 0.018 ft³/ lb. And the density of the sample is 55.5 lb/ ft³.
A specific volume of a substance is defined as the ratio of its volume to its mass. It is the reciprocal of the density of a substance. Whereas density is defined as the ratio of the mass of the substance to its volume. SI unit of specific volume is m³ per kg. SI unit of density is kg / m³.
The mass of the sample = 2 lb
The volume of the sample = 62.6 in³
The specific volume of the sample is,
[tex]Specific\ volume = \frac{mass}{volume}\\\\Specific\ volume = \frac{V}{M}[/tex]
[tex]Specific\ volume = \[\frac{62.6}{2\times {{\left( 12 \right)}^{3}}}\]\[/tex]
[tex]Specific\ volume = 0.018\ ft^{3}/lb[/tex]
The specific volume of the sample is 0.018 ft³/ lb.
The density is the inverse of specific volume.
So, the density of the sample is,
[tex]Density = \frac{1}{specific\ voume}\\\\Density = \frac{1}{0.018} \\\\Density = 55.5\ lb/ft^{3}[/tex]
Thus, the density of the sample is 55.5 lb/ ft³.
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To properly measure 20 ml of water, what must be at the 20 ml mark of the graduated cylinder?
To properly measure 20 ml of water, the 20 ml mark of the graduated cylinder must be at the meniscus.
We measure at the meniscus for what reason?
To have the "actual" volume be what is marked, the mark must be placed where the bottom of the meniscus should be on the glass. Therefore, by taking measurements from the bottom of the meniscus, you are harmonizing your measurement process with the method used to calibrate the markings on the glass in the first place.
The meniscus is what?
When a molecular substance (water, of course) comes into contact with another material, the surface forms a meniscus. You may imagine that happening with water when it adheres to the interior of a glass.
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A cinder block sits on a platform 20 m high. If it has a mass of 8 kg, find its energy.
Answer:
1568 Joules
Explanation:
MGH
Mass of 8kg time Gravity of 9.8 and Height of 20 meters
20*9.8*8
Answer: potential energy = mgh
8×20×10=1600joules
Explanation:
On which object will Earth’s gravity act with the greatest magnitude?(1 point)
a banana
a banana
a television
a television
a toaster
a toaster
a piano
on which object will earth gravity act with the greatest magnitude?
ANSWER
a piano
What is a product that is produced by both fermentation reactions (lactic acid fermentation or ethanol fermentation) and the electron transport chain?
The product that is produced during fermentation reactions (lactic acid fermentation or ethanol fermentation) and the electron transport chain is NAD+.
Throughout the process anaerobic glycolysis the two molecules of NADH that are bring back to their oxidized form NAD+ in the method of the fermentation. So the reclamation of glycolysis-related NADH is filled up. The method of aerobic respiration produces six molecules of NADH that being bring back into NAD+ form throughout the process of oxidative phosphorylation.
Fermentation abide by the glycolysis in the absenteeism of oxygen. Alcoholic fermentation generates ethanol, carbon dioxide, and NAD+. Lactic acid fermentation generates lactic acid (lactate) and NAD+.
Hence, in the conclusion NAD+ will be produced.
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What is the molar solubility of fe(oh)3 in a solution that is buffered at ph 2.50?
Molar solubility of Fe(oh)3 in a solution that is buffered at pH 2.50 is 2.0×10−3M.
What is solubility product constant?A salt compound will dissolve in the liquid water by forming an aqueous solution of its constituent ions. The saturated solution has compound dissociation reaction in a solubility equilibrium and we define this state using the compound's solubility product constant Ksp . This parameter will only change with solution temperature. In contrast, compound's molar solubility limit in the saturated solution can be manipulated in numerous other methods. One example involves trying to dissolve an acidic/basic salt compound in a solution that is buffered at certain pH. The pH will control compound's molar solubility because it affects the molarity of the acidic/basic constituent ion in the solution.
How can we solve it?Iron (III) hydroxide has following solubility equilibrium for its saturated solution with the given constant value:
Fe(OH)3(s)⇋Fe3+(a q)+3OH−(a q)
Ks p=6.3×10−38=[Fe3+][OH−]3
From the given pH we find hydroxide ion molarity:
pH=2.50
pOH=14.00−2.50=11.50[OH−]=10−pOH=10−11.50=3.2×10−12 M
It is assumed that the iron (III) hydroxide makes a negligible contribution to hydroxide ion molarity. We solve the expression for molar solubility of this compound x:
Ksp=6.3×10−38=(x)(3.2×10−12 M)3
x=2.0×10−3M
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How do renewable and nonrenewable resources differ?
Natural resources are those that are accessible without human intervention. Like the sun, the atmosphere, the air, the water, the land, the mines, the vegetation, and animal life.
There are two categories of natural resources: renewable resources and non-renewable resources.Renewable resources :
These are the kind of natural resources that, even after constant use, do not become exhausted or depleted.For example, Wind and SunlightThese have low carbon footprints and low carbon emissions.Infrastructure costs for the production of renewable energy are very costly.Doesn't cause Pollution. Cause Pollution when usedNon Renewable resources :
These are the natural resources that, as a result of ongoing human usage, become exhausted or depleted and are neither renewed nor replaced.For example, groundwater, fossil fuels, and mineral ores etc.These emit more carbon than other, which increases their carbon footprint.Infrastructure costs for the production of energy from these resources are low.Learn more about natural resources here:
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allows oxidation of co (carbon monoxide) to less-harmful co₂ (carbon dioxide) allows oxidation of hc (unburned hydrocarbons) to co₂ (carbon dioxide) and h₂o (water)
The oxidation of co (carbon monoxide) to less-harmful co₂ (carbon dioxide) and the oxidation of hc (unburned hydrocarbons) to co₂ (carbon dioxide) and h₂o (water).
What is meant by an oxidation reaction?Oxidation is that the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation number of a molecule, atom or ion is increased. the other process is called reduction, which occurs when there's a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.
Why is it called an oxidation reaction?
The term oxidation was first employed by Antoine Lavoisier to signify the reaction of a substance with oxygen. Much later, it had been realized that the substance, upon being oxidized, loses electrons, and therefore the meaning was extended to include other reactions in which electrons are lost, no matter whether oxygen was involved.
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Marathon is a 26.2-mile race that commemorates the run made by a greek soldier, pheidippides, that took place in 490 bce. how many kilometers did he run? (note: 1 mi = 1.6 km.)
Marathon is a 26.2 mile race that commemorates the run made by a Greek soldier, Pheidippides, that took place in 490 BC. He ran 41.9 kilometers.
The Greek soldier Pheidippides ran marathon of 26.2 miles.
So, the kilometers he ran -
1 mile = 1.6 km
26.2 mile = 1.6 x 26.2 km
= 41.9 km
Why marathon is 26.2 miles?
Marathon is 26.2 miles long, as, the Queen Alexandra requested the race to be started from the lawn of the Windsor Castle, for the little royals to watch and to finish the race in front of the royal box of Olympic stadium, and the distance between lawn of castle and royal box was 26 miles and 385 yards.
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Answer:
41.9 km
Explanation:
I took the test.
How many grams of koh are needed to neutralize 12.6 ml of 0.14 m hcl in stomach acid? type answer:
0.095grams of KOh is needed to neutralize 12.6 ml of 0.14m HCl in stomach.
A mole is defined as a certain chemical unit, such as an atom, a molecule, an ion, or another type. Due to the large number of atoms, molecules, or other components that make up any substance, the mole is a useful measure to utilise.Chemical reaction:
HCl + KOH → KCl + H2O
Moles HCl = molarity x volume
Moles HCl = 0.14 M x .00126 L
Moles HCl = 0.0017 moles
Calculate moles of KOH
For 1 mol of KOH, we need 1 mole of HCl to produce 1 mol of KOH and 1 mole of H2O
For 0.0017moles of HCl, we need 0.0017 moles of KOH.
Calculate the mass of KOH
Mass of KOH = moles x molar mass
Mass of KOH = 0.0017moles x 56.1 g/mol
Mass of KOH = 0.095g
Hence, 0.095 grams of KOH are needed to neutralize 12.6 mL of 0.14 M HCl in stomach acid.
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Give the charge of the stable ion formed by each of the following. Include the sign (+ or -) and magnitude (numerical value) of the charge in every case. (Note: Give only the charge, not the formula of the ion.)
1. A group 2A metal
2. A group 3A metal
The charges are;
A group 2A metal - 2+A group 3A metal - 3+ What is a charge?A charge is a specie that has a positive or a negative charge. We know that in chemistry, an atom could acquire a charge by the loss or gain of an electron. We now want to see the kind of charge that is formed from the spices as shown in the question.
Thus, according to the groups that the elements belong;
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The chemical potassium bicarbonate is used in club soda for taste. it is made up of potassium, carbon, hydrogen and oxygen, this is an example of?
The flavoring agent in club soda is the chemical potassium bicarbonate. This is an illustration of an emergent property because it is composed of potassium, carbon, hydrogen, and oxygen.
What is an emergent property?
An entity acquires an emergent attribute as it integrates into a larger system. Living things benefit from emergent qualities that enable them to survive by better adjusting to their surroundings.
By joining together to form the proteins, lipids, carbohydrates, and nucleic acids that comprise macromolecules, atoms like carbon, hydrogen, oxygen, and nitrogen found in molecules acquire new or emergent capabilities. Lipids are created, for instance, when particular combinations of carbon, hydrogen, and oxygen occur. Lipids have the ability to create cell membranes, which keep living cells isolated from their surroundings. Life could not exist without cell membranes, which are an emergent feature not present in the molecules that comprise them.
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The ion [co(nh3)6]2 is octahedral and high spin. is the cobalt ion paramagnetic or diamagnetic?
The cobalt ion is paramagnetic.
The shape of compounds with six atoms or groups of atoms or ligands symmetrically grouped around a central atom, defining the vertices of an octahedron, is described by octahedral molecular geometry, also known as square bipyramidal, in chemistry.
High spin electrons will occupy the d orbitals as if they were degenerate when Δ is small because the pairing energy is greater than the splitting energy. How little or huge is Δ also depends on the metal's oxidation state.
[Co(NH₃ )₆ ]⁺ Due to the existence of an unpaired electron and a high field ligand, the ion 2+ exhibits paramagnetic behavior (low-spin complex). Co is a d⁷ electron system since it is in the +2 oxidation state in this instance. All electrons pair together in the presence of a strong ligand, leaving one electron unpaired.
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Why are the Lewis Dot Structures for H and He different?
Answer:
The Lewis dot structure for H is H, while the Lewis dot structure for He is He. The difference is due to the different number of valence electrons in each atom. H has one valence electron, while He has two valence electrons.
Explanation:
The explanation for this is that, according to the octet rule, atoms will tend to form bonds until they have eight valence electrons around them. H only has one valence electron, so it can only form one bond. He, on the other hand, has two valence electrons, so it can form two bonds.