Option ( c) is correct. MnO is most ionic. Because it has lowest magnitude positive charge.
The ionic compounds are the chemical compounds composed of ions held together by electrostatic forces. The bond is called ionic bond. The compound consists of positively charged ions called cations and the negatively charged ions called anions. Manganese oxide is most ionic because it has lower oxidation state. Lower the charge on metal more is the ionic character. larger the charge more is the covalent character. Ionic compounds are hard and brittle. It has high melting and boiling points. They are electrically insulating as solids. the ions become highly conductive when melted. Ionic compounds can be synthesized from their constituent ions through solvent evaporation and precipitation.
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B. Identify the type of molecule from the name of the molecule. (2 point) Name of Molecule Type of Molecule Hexanol Iobutyl acetate Octanal Propanoic acid Benzophenone Dimethyl ether Chlorpheniramine
Answer: Hexanol -> Alcohol, Isobutyl acetate -> Ester, Octanol -> Alcohol, Propanoic acid -> Carboxylic Acid, Benzophenone -> Ketone, Dimethyl ether -> Ether, Chlorpheniramine -> N-Base.
What are functional groups?
A functional group in organic chemistry is a collection of atoms in a molecule that binds together to react predictably. Examples of functional groups include hydroxyl, ketone, amine and ether groups.
Hexanol -> Alcohol Isobutyl acetate -> EsterOctanol -> Alcohol Propanoic acid -> Carboxylic AcidBenzophenone -> KetoneDimethyl ether -> EtherChlorpheniramine -> N-BaseTherefore, the above are the types of the molecules derived from the name of the molecule.
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using standard heats of formation, calculate the standard enthalpy change for the following reaction.
We must determine standard enthalpy change using standard heat of formation. We are aware of the standard heat of graphite creation in order to answer that query.
One group of chemical elements can convert chemically into another through the process of reaction. Sol- We must follow their request and use the accepted temps of formation in this problem. In order to calculate a standard enthalpy change, we must use a standard heat of formation. As a result, in this scenario, we must establish the typical enthalpy change for the particular reaction. What is the advised reply to it, then? In this situation, we must determine the standard or enthalpy change. The result of mixing oxygen gas and solid graphite is c. As a result, gas is created. This is the answer to that reply. The usual heat of creation must be determined. This holds true.
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The thin‑layer chromatography (TLC) plate shown was developed with 20% ethyl acetate in hexanes. (4)Suppose the plate had instead been developed with 5% ethyl acetate in hexanes. Determine whether each plate is a possible result of the adjusted development process
In thin‑layer chromatography (TLC) plate 1: possible
middle: dot on top
dot w/circle on bottom
rest: impossible
Non-volatile mixtures can be separated using the chromatography technique known as thin-layer chromatography (TLC). A sheet of an inert substrate, such as glass, plastic, or aluminum foil, is used for thin-layer chromatography. This substrate is covered with a thin layer of an adsorbent material, often silica gel, aluminum oxide (alumina), or cellulose. In the TLC process, a solvent or combination of solvents serves as the mobile phase. You've come to the correct site if you want to learn more about the thin layer chromatography process. Here, we'll talk about its basic idea, how it works, and how it may be used in many fields of business.A line is often drawn 0.5–1.0 cm from the bottom of a thin layer chromatography plate, which is typically 5-7 cm high. You will place your mixes along that line for separation.
complete question:attached below.
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Find the empirical formula for a compound with a molecular formula of C8H12.
Answer:
C2H3
Explanation:
The empirical formula is the simplest whole number ratio of atoms of each element in a compound while the molecular formula shows us the actual number of atoms of each element
Writing C8H12 in a ratio:
8 : 12
This can be simplified by dividing by a common factor present in both numbers
8 and 12 can be divided by 4
8 ÷ 4 = 2 and 12 ÷ 4 = 3, hence the ratio is:
2 : 3
This cannot be simplified any further
Thus, the empirical formula is C2H3
If you have a ound wave moving at 340 m/ and a frequency of 100 what i the wavelength
If you have sound wave moving at 340 m/s and a frequency of 100 Hz , the wavelength is 3.4 m.
Given that :
The velocity of the sound wave = 340 m/s
The frequency = 100 Hz
The wavelength expression is given as :
Wavelength = velocity / frequency
where,
velocity = 340 m/s
frequency = 100 Hz
Wavelength = 340 / 100
Wavelength = 3.4 m
Thus, the wavelength is 3.4 m if the sound wave velocity is 340 m/s and the velocity is 100 Hz. The wavelength is the distance between crests in the adjacent cycles of the waveform.
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what is the similarities of comets and asteroids
Please help me!!!!!!!
You can apply the straightforward formula to determine the average atomic mass.
How can I determine the average atomic mass of isotopes?You can apply the straightforward formula to determine the average atomic mass.AM = f1 m1 + f2 m2 +... + fn mn.AM stands for average atomic mass, fn for natural abundance of isotope number n, and mn for isotope number n's atomic mass.Add the atomic masses of each isotope to the natural abundance.Add up all the items you got in step one.The resulting value is the element's average atomic mass.The existence of isotopes for elements can be explained by their average atomic mass. It provides us with the average atomic masses of all the element's isotopes.It is advantageous since its value is equal to the molar mass of an element. Additionally, being aware of the tooth.To learn more about average atomic mass refer to:
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Chem Reaction: B2H6 + 3O2 --> B2O3 + 3H2O
1. How many grams of liquid oxygen would a rocket have to carry to burn 50g of diborane (B2H6) completely?
According to the stoichiometry of the given chemical equation, 24,295 g of liquid oxygen would a rocket have to carry to burn 14 kilograms (14,000 g) of diborane completely.
What is stoichiometry?The measurement of element or compound amounts in a chemical process is known as stoichiometry. The laws of conservation of mass and merging weights and volumes serve as the foundation for the linked relationships.In quantitative analysis, stoichiometry is used to calculate the concentrations of various substances in the sample.
It helps make solutions with different concentrations that can be used in titrations and balance chemical equations. 48 g oxygen gives 27.66 g diborane thus, for 14000 g diborane 14000×48/27.66= 24,295 g oxygen is required.
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A donut has a density of 0.75 g/cm cubed and a mass of 100.0g. What is the volume of the donut?
Answer:
133.333333333 cm^3
Explanation:
Volume = Mass/Density
Sulfur dioxide reacts with oxygen to produce sulfur trioxide. Write the equation. Identify the limiting reagent when 20.0 g of SO2 react with 15.6 g of O2.
The equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO[tex]_2[/tex](g) + O[tex]_2[/tex](g) [tex]\rightarrow[/tex] 2SO[tex]_3[/tex] (g). SO[tex]_2[/tex] is limiting reagent.
What is limiting reagent?The reactant that controls how much of the products are generated inside a chemical reaction is known as the limiting reagent. Since some of the other reactants remain that after limiting reagent has been used fully, it is occasionally discovered that they are in excess in the reactions. The theoretical yield is the most product that can theoretically be produced.
2SO[tex]_2[/tex](g) + O[tex]_2[/tex](g) [tex]\rightarrow[/tex] 2SO[tex]_3[/tex] (g)
moles of SO[tex]_2[/tex] =20.0 g / 64.07
=0.312moles
moles of O[tex]_2[/tex]= 15.6 g/32
=0.487moles
On dividing the moles by stoichiometry, out of O[tex]_2[/tex] and SO[tex]_2[/tex], SO[tex]_2[/tex] is limiting reagent.
Therefore, the equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO[tex]_2[/tex](g) + O[tex]_2[/tex](g) [tex]\rightarrow[/tex] 2SO[tex]_3[/tex] (g). SO[tex]_2[/tex] is limiting reagent.
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Which event is occurring because of increasing carbon dioxide levels in the atmosphere?.
The atmosphere's rising carbon dioxide concentrations are causing an increase in the greenhouse effect.
The greenhouse effect is a result of the interaction between the sun's energy and the greenhouse gases found in the Earth's atmosphere, such as methane, carbon dioxide, nitrous oxide, and fluorinated gases. The greenhouse effect causes a rise in global temperatures.Gases in the atmosphere, such as carbon dioxide, trap heat in a similar way to a greenhouse's glass roof.During the day, the Sun radiates through the atmosphere. The Earth's surface warms in the sunlight. At night, as the Earth's surface cools, heat is transferred back to the atmosphere. However, a portion of the heat is trapped by greenhouse gases in the atmosphere.To learn more about greenhouse effect from given link
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If you walk at a speed of 3 meters per second (m/s), how far will you walk in 11 seconds?
If you answer please show how you did it too because my teacher is very specific on showing our work!!
If one walks at a speed of 3 meters per second, the distance that will be walked in 11 seconds is 33 metres.
How to calculate distance?Speed is the rate of motion or action, specifically the magnitude of the velocity i.e. it is the rate distance is traversed in a given time.
The speed can be measured by dividing the distance moved by the time taken as follows:
Speed = distance/time
3m/s = d/11
distance = 33metres
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if 2Na + Cl2 --> 2NaCL ... what happened to the two on Cl? and if 2H2O --> 2H2 + O2 what happened to the 2 on the O as well? could you please answer this in like sort of a simple way? my brain is mush at the moment lol.
Explanation:
when a big number is behind a compound, it means there is 2 of it.
for example 2Na would mean there is a sodium atom and another sodium atom not joined together, but they're just near.
when there is a 2 (which should be small and at the bottom) after an atom, it means there are 2 of that atom.
i hope this helps
light amplification by stimulated emission of radiation
Light Amplification by Stimulated Emission of Radiation, or "LASER," is the abbreviation for this process. It applies to any apparatus that produces and amplifies a coherent, focused, narrow beam of light.
Amplification of light - what does that mean?Increasing the amplitude of an electromagnetic light wave is the process of light amplification. Three main categories—laser, parametric, and scattering—are commonly used to describe this process.Light Amplification by Stimulated Emission of Radiation, or "LASER," is the abbreviation for this process. It applies to any apparatus that produces and amplifi es a coherent, focused, narrow beam of light.The energy from an electrical current or light is absorbed by the electrons in the atoms of optical materials like glass, crystal, or gas, which results in the formation of a laser. The additional energy "excites" the electrons to the point that they change their orbits around the atom's nucleus from one with a lower energy to one with a higher energy.To learn more about Light Amplification refer to:
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What kind of reaction occur in an electrolytic cell? what characterize it voltage?
An electrolytic cell is a type of electrochemical cell that uses an externally applied voltage to drive a chemical reaction.
In an electrolytic cell, the applied voltage causes a reaction to occur, such as the oxidation or reduction of ions in the electrolyte or the decomposition of the material.
The voltage applied across the cell is known as the electrolytic voltage and is typically much higher than the cell's thermodynamic equilibrium voltage.
The electrolytic voltage is used to drive the reaction, and is typically provided by a battery, fuel cell, or other external power source.
The reaction that occurs during an electrolytic cell is characterized by its voltage, current, and power output.
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What is a 2. 0 molar solution?.
The molar solution 2.0 obtained when 0.5 mole solute is dissolved in:
250 ml solution (Option C)
Moles of solute in moles divided by volume of solution in liters is molarity.
M = n/V
Where:
M denotes molarity
n denotes moles of solute, and
V denotes volume.
You can solve for the number of moles by multiplying the equation by volume, or MV = n.
So, to find the number of moles of solute, multiply the molarity by the volume. The molar mass of the solute can then be used to convert moles of solute into grams of solute, or mass.
Molarity = moles of solute / volume of solution
2 = 0.5 / volume of solution
So, the volume of solution = 0.25 L
= 250 ml
The question is incomplete, it should be:
2.0 molar solution is obtained when 0.5 mole solute is dissolved in:
A. 250 ml solvent
B. 250 gr solvent
C. 250 ml solution
D. 1000 ml solvent
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When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water.
How many grams of sodium sulfide are formed if 1.80 g of hydrogen sulfide is bubbled into a solution containing 2.40 g of sodium hydroxide, assuming that the sodium sulfide is made in 93.0 % yield?
The amount of sodium sulfide formed would be 2.18 grams..
Stoichiometric problemHydrogen sulfide and sodium hydroxide react according to the following equation:
[tex]2 NaOH (aq) + H_2S (g) -- > 2 H_2O (l) + Na_2S (aq)[/tex]
Mole equivalent of 1.80 g hydrogen sulfide = 1.80/34.1 = 0.05 mol
Mole equivalent of 2.40 g of sodium hydroxide = 2.40/40 = 0.06 mol
From the equation of the reaction, the mole ratio of sodium hydroxide to hydrogen sulfide is 2:1. This means that 0.06 mol sodium hydroxide is limiting while 0.05 mol hydrogen sulfide is in excess.
The mole ratio of sodium hydroxide to sodium sulfide is 2:1. Thus, the equivalent mole of sodium sulfide produced would be:
0.06/2 = 0.03 mol
Mass of 0.03 mol sodium sulfide = 0.03 x 78 = 2.34 grams
At 93.0% yield = 0.93 x 2.34
= 2.18 grams
In other words, the amount of sodium sulfide formed at 93.0% yield would be 2.18 grams.
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How do you find the velocity of a ball?.
The velocity of the ball is calculated by the formula v = Δs/Δt.
that is [tex]\overline{v}={\frac{\Delta x}{\Delta t}}[/tex]
Velocity is the direction at which an object is moving and serves as a measure of the rate at which its position is changing as seen from a specific point of view and as measured by a specific unit of time (for example, 60 km/h northbound). In kinematics, the area of classical mechanics that deals with the motion of bodies, velocity is a fundamental idea.
A physical vector quantity called velocity must have both a magnitude and a direction in order to be defined. Speed is the scalar absolute value (magnitude) of velocity; it is a coherent derived unit whose quantity is measured in metres per second (m/s or m/s1) in the SI (metric system). In contrast to "5 metres per second east," which is a vector, "5 metres per second," for instance, is a scalar.
By dividing the distance by the time, the ball's speed is determined. The average speed will be 60/3, or 20 feet per second (6.1 metres per second), if the time was 3 seconds.
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consider the steps involved in preparing a dilute solution from a stock solution. arrange them in order from first to last.dd deionized water until the volume reaches the mark on the flask.Add the desired amount of stock solution. Obtain a flask that is thoroughly cleaned and dried.Cap the flask and invert several times to thoroughly mix the solution
Obtain a flask that is thoroughly cleaned and dried. Cap the flask and invert several times to thoroughly mix the solution are listed below.
What is volume ?
Volume, a three-dimensional quantity, is used to calculate the capacity of a solid shape. In order to calculate how much space a closed figure can occupy in three dimensions, volume is utilized. An example would be the space or shape that a substance, such as a solid, liquid, gas, or plasma, occupies. In addition, the cubic meter deriving from the S.I. is widely employed to quantify volume.
What is deionized water ?
Demineralized water, also known as DI water or DM water, is occasionally used interchangeably with DEI water. Most of the ions are no longer present in the water. Ions are atoms or molecules that are either positive ions (which are called cations) or negative ions (which are called anions) depending on the ratio of electrons to protons (called a cation).
Steps in preparation of dilute solution from a stock solution
1 Obtain a flask that is thoroughly cleaned and dried
2 Add the desired amount of stock solution
3 Add deionized water until the volume reaches the mark on the flask
4 Cap the flask and invert serval times to thoroughly mix the solution
If a student accidentally adds deionized water past the calibration mark on a volumetric flask she should start over and make an entirely new solution. Because it is calibrated for the particular volume if excess deionized water is added it gives wrong values(errors) in titration.
Therefore, Obtain a flask that is thoroughly cleaned and dried. Cap the flask and invert several times to thoroughly mix the solution are listed above.
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What is soil conservation and water conservation?
Soil and water conservation are those activities at the local level which maintain or enhance the productive capacity of the land including soil, water and vegetation in areas prone to degradation. prevention or reduction of soil erosion, compaction, salinity; conservation or drainage of water and.
What do you mean by conservation of water?
Water conservation includes all policies, strategies and activities for the sustainable management of natural freshwater resources, for the protection of the hydrosphere and for meeting current and future human demand. The amount of water used affects population, household size, growth and well-being.To know more about conservation of water, click the link given below:
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explain the process that creates chemical elements lighter than iron, including evidence
Nuclear fusion is the process that creates chemical elements lighter than iron. Helium is created when two hydrogen atoms join in a star at a speed that is almost as fast as light.
What is element?A material is considered an element if it cannot be divided into two or maybe more simpler compounds by any kind of chemical process, including the use of light or heat. For instance, when a piece of gold is melted, the gold element still melts and is there.
The lightest element is hydrogen. Helium is created when two hydrogen atoms join in a star at a speed that is almost as fast as light. The star keeps doing this until there are no more hydrogen atoms available. When this occurs, the star produces Beryllium by fusing the Helium atoms. When the helium runs out Carbon is created by combining Beryllium in the star. This procedure keeps going until the star produces iron. The star then explodes. Our dwellings and buildings are made out of all those atoms.
Therefore, nuclear fusion is the process that creates chemical elements lighter than iron.
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Which manufacturing process is shown in the photograph?
A. Combining
B. Forming
C. Separating
D. Conditioning
Answer:
looks like separating
Explanation:
cutting the fabric with scissors
in complementary base pairing bonds with and bonds with
The two strands of DNA are held together by hydrogen bonds.
What is chemical bond?A chemical bond is an attraction between two atoms or ions that allows the formation of chemical substances. Chemical bonds are formed when the atoms share or transfer electrons in order to obtain a full outer shell of electrons, achieving a more stable electron configuration. This can happen through covalent bonds, ionic bonds, hydrogen bonds, and other types of bonds. Chemical bonds are responsible for the stability of molecules and are responsible for many of the physical and chemical properties of substances.
These hydrogen bonds form between the nitrogenous bases of the two strands of DNA. Adenine (A) on one strand always bonds with thymine (T) on the other, and cytosine (C) always bonds with guanine (G). This highly specific arrangement of base pairs is essential for the replication and transcription of genetic information.
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which nonmetal is the only one that is liquid at room temperature ?
O mercury
O oxygen
O bromine
O helium
Bromine is the only non metal that exists in liquid state at the room temperature.
Bromine belongs to the member of halogen group. Heavy, volatile, mobile etc are some of the characteristics of it. Bromine is quite dangerous.
It has red brown color at room temperature. It is very reactive as it evaporates quickly to form a similar colored gas.
Bromine molecules depicts strong inter-molecular force so that's why it doesn't evaporates at room temperature. It also shapes up diatomic molecules and Van Der Walls interactions are highly strong.
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Answer:
helium
Explanation:
fill in the words to complete each step in liquid spill cleanup.
1. Surround the area with absorbent material, then cover the spill.
2. Scoop up the material and place in a plastic bag.
3. Place the bagged waste in a solid waste container.
4. Wipe down the area with detergent and water
Each blank is filled with the correct word from the given options as follows: 1: Surround the area with B: absorbent material, then cover the spill; 2: Scoop up the material and place in a A: plastic bag; 3: Place the bagged waste in a D: solid waste container; and 4: Wipe down the area with C: detergent and water.
A spill in the workplace can yield a variety of hazards and risks to workers so, in essence, it is essential that they understand how to clean up liquid spills that otherwise can be hazardous. So, such materials are needed to be appropriate disposed of. Following steps can be followed to clean up liquid spills properly:
1: Surrounding the area with absorbent material, then covering the spill;
2: Scooping up the material and placing in a plastic bag;
3: Putting the bagged waste in a solid waste container;
4: Wiping down the area with detergent and water
"
Complete question is as follows:
Fill in the words to complete each step in liquid spill cleanup.
options:
A: plastic bag...
B: absorbent material...
C: detergent and water...
D: solid waste container...
1. Surround the area with _________, then cover the spill.
2. Scoop up the material and place in a ________
3. Place the bagged waste in a _________
4. Wipe down the area with _________
"
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How many molecules are in 1. 5 moles?.
There are 9.033 x10²³ molecules in 1. 5 mol
By multiplying the sum of moles by the Avogadro constant, one can get the total number of atoms or molecules in a sample. The equation reads as follows:
number of molecule= moles x avogadro's number
One mole of material has 6.022x10² atoms, and equal quantities of different gases measured at the same pressure and temperature have the same number of molecules in them.
number of molecule= moles x avogadro's number
number of molecule= 1. 5 mol x 6.022x10²³
number of molecule= 9.033 x10²³
Therefore, there are 9.033 x10²³ molecules in 1. 5 mol of H₂O
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identify two ways to increase the current in a simple circuit
The two primary methods for increasing current in an electrical circuit are to increase the voltage or to decrease the resistance.
What are the factors affecting current?The flow of electricity in an electronic circuit, as well as the amount of electricity flowing through a circuit, are referred to as electric current. It is expressed in amperes. The greater the value in amperes, the more electricity flows through the circuit.A circuit's current is proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance provided by the external circuit. The higher the battery voltage(v), the higher the current.The electrical current (I) flowing in a circuit is proportional to the voltage and inversely proportional to the resistance, according to Ohm's law. As a result, increasing the voltage causes an increase in current as long as the resistance(R) of the circuit remains constant.To learn more about current refer to :
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Is CH3 nonpolar covalent?.
Methane creates a covalent bond that is non-polar. This is due to the fact that there is almost any distinction between the electronegativity of carbon and hydrogen.
Because the electronegativities of the C and H are comparable when we simply consider CH₃, we declare it to be non-polar. As a result, they cancel one another, making CH₃ non-polar.
A methyl anion, the [CH₃-] group, has covalent connections between its carbon and hydrogen atoms. Although a C-H bond has no bond polarity, the anion has molecular polarity because of the negative charge attached to carbon.
Methane creates a covalent bond that is non-polar.
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Write a bond-line formula for each of the following compounds:
(a) 1,4-Dichloropentane
(b) sec-Butyl bromide
(c) 4-Isopropylheptane (k) 1,4-Dicyclopropylhexane
(d) 2,2,3- Trimethylpentane (I) Neopentyl alcohol
(e) 3-Ethyl-2 methylhexane
(f) Dichlorocyclopentane
(g) cis-1,2 Dimethylcyclopropane
(h) trans-1,2 Dimethylcyclopropane
(i) 4-Methyl-2-pentanol G) trans-4 Isobutyleyclohexanol (m) Bicyclo[2. 2. 2Joctane (n) Bicycl0butane (o) Cyclopentylcyclopentane (p) 7-Methyl bicyclo[2. 2. 1]heptane
Bond line shows a molecular formula with a single line for each of the covalent links.
Define Bond line
Organic chemists have a convention for displaying molecular structures called bond line notation. This represents a bond between two atoms as a line. The ends of the line represent the positions of the bonded atoms. Only atoms other than carbon and hydrogen are particularly shown.
Pentane is the alkane's parent name for 1,4-dichloropentane. The prefix di- indicates that there are two substituents, and the numbers 1 and 4 indicate that they are on the corresponding carbons. Butane serves as the parent chain for sec-butyl bromide. Heptane serves as the parent chain for 4-isopropylheptane. Pentane serves as the parent chain for 2,2,3-trimethylpentane. Hexane serves as the parent chain for 3-Ethyl-2-methylhexane. Cyclopentane serves as the parent chain for dichlorocyclopentane.
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Mno2(s) + 4hcl(aq) → mncl2(aq) + cl2(g) + h2o how many grams of hcl are required to produce 11.2g cl2 ?
28.0 grams of HCl are required to produce 459.5 g grams of Cl2.
To find out how many grams of HCl are required to produce 11.2 grams of Cl2, we need to use the balanced equation for the reaction between MNO2, HCl, MnCl2, and Cl2.
MNO2(s) + 4HCl(aq) → MnCl2(aq) + Cl2(g) + H2O
From the balanced equation, we can see that 1 mole of MNO2 reacts with 4 moles of HCl to produce 1 mole of Cl2.
To convert the mass of Cl2 to moles, we use the molar mass of Cl2, which is 35.5 g/mol:
11.2 g Cl2 / 35.5 g/mol = 0.316 mol Cl2
Since the reaction requires 4 moles of HCl for every 1 mole of Cl2, we can use the ratio between moles of HCl and moles of Cl2 to find the number of moles of HCl:
4 moles HCl / 1 mole Cl2 = 4 moles HCl/ 0.316 moles Cl2 = 12.6 moles HCl
To convert moles to grams, we use the molar mass of HCl, which is 36.46 g/mol:
12.6 moles HCl x 36.46 g/mol = 459.5 g HCl
Therefore, 28.0 grams of HCl are required to produce 11.2 grams of Cl2.
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