What is the systematic name for the given compound below? e CH3 CH2-CH-CH2 CH3 | CH3 CH – CH-CH2-CH, CH, CH-CH : CH3. A) 4,6-dimethyl ethylpropylheptane B) 6-ethyl methyl-4-propyloctane C) 3-ethyld-methyl-Isopropyloctane D) 5-Sethyl-2-dimethylpropylheptane
Answers
The systematic name for the given compound: \(CH^{3} CH^{2}-CH-CH^{2} CH^{3} | CH^{3} CH – CH-CH^{2}-CH, CH, CH-CH\) : CH3 is 5-ethyl-2-dimethylpropylheptane. The correct answer is option D.
The given compound below:\(CH^{3}CH^{2}-CH-CH^{2}CH^{3}|CH^{3}CH – CH-CH^{2}-CH,CH,CH-CH:CH^{3}\)can be named systematically by counting the carbon atoms in the longest continuous chain, which is heptane.
The heptane chain has seven carbon atoms. It is a branched alkane with two branches coming off of the second carbon and one branch coming off of the fifth carbon.
The name of the compound is thus derived by naming each branch and then indicating the position of each branch with respect to the longest chain. The correct systematic name for the given compound is 5-ethyl-2-dimethylpropylheptane.
Systematic names of compounds help chemists to identify and describe molecules with precision.
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Related Questions
Which type of reaction does this diagram represent?
A small ball heads toward a large circle labeled superscript 235 upper U. An arrow points to an irregular circle labeled superscript 236 upper U. Another arrow points to a starburst, partially overlaid by 2 blobs labeled superscript 92 upper K r and superscript 141 upper B a, and with 3 small balls heading away from the starburst.
nuclear fusion because nuclei combine to form a heavy nucleus
nuclear fission because an atom is splitting into two large fragments of comparable mass
nuclear fusion because a large amount of energy is being released
nuclear fission because the resulting products are not radioactive
Which one is the answer need this asap! and explanation please!
Answers
The diagram represents a nuclear fission reaction where a Uranium-235 nucleus absorbs a neutron, becomes unstable and splits into two fragments releasing energy and neutrons.
What is the difference between nuclear fission and nuclear fusion?Nuclear fission is the process of splitting an atomic nucleus into two or more smaller nuclei with the release of energy, while nuclear fusion is the process of combining two or more atomic nuclei into a larger nucleus with the release of energy.
How is energy released in a nuclear fission reaction?In a nuclear fission reaction, energy is released due to the conversion of a small amount of mass into a large amount of energy, in accordance with Einstein's famous equation E=mc^2. The release of energy occurs when the Uranium-235 nucleus splits into two fragments, releasing neutrons and gamma radiation in the process.
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Local winds can be caused by______ heating of the earth's surface.
Answers
Answer: unequal
Explanation: Local winds are caused by unequal heating of Earth's surface within a small area. Local winds form only when large-scale winds are weak. A sea breeze is a local wind that blows from an ocean or a lake.
Answer: Key Concept Global winds and local winds are produced by the uneven heating of Earth’s surface. What You Will Learn Uneven heating of Earth’s surface by the sun causes differences in air pressure that cause wind. Wind patterns can be global or local and are influenced by the rotation of Earth and by geography.
Explanation:
Discuss the phenomena of sunrise and sunset seen on Earth and describe how they will be different from the perspective of outer space. PLS REPLY ASAP AND EXPLAIN IM DESPEPERATE
Answers
Answer:
IM TO LATE SORRY
Explanation:
What are the symbols (in order) for hydrogen, sodium and nitrogen?
Answers
Answer:
H, Na, N
Explanation:
Answer:
H, NA, N
Explanation
An acid is added to water, and a new equilibrium is established. What is the system after the acid is added? A. pH w = 1 x 10-14 B. pH w -14 C. pH > pOH and Kw = 1 x 10-14 D. pH > pOH and Kw > 1 x 10-14
Answers
Answer:
C. pH > pOH; Kw = 1.0 * 10^-14
Explanation:
The ion product of water, Kw = [H+]*[OH-] = 1.0 * 10^-14. It is a constant.
When an acid or base is added to water, its ion product does not change as it a constant. However, the relative concentrations of H+ ions and OH- ions will change depending on whether an acid or base is added to water.
When an acid is added to water, the concentration of H+ ions increases while that of OH- ions decreases, and vice versa.
Therefore, in the above situation where an acid is added to water, pH > pOH; Kw = 1.0 * 10^-14
While cleaning out the garage, Duane found his old bicycle. Some of the paint had worn off, exposing the iron frame inside. Duane noticed that parts of the iron frame had become reddish-brown and rough and that parts were flaking off. What happened to Duane's old bicycle?
Answers
Answer:
It began to rust.
Explanation:
Because it had been left out for a long time
According to the iupac convention for chemical naming, which part of a hydrocarbon is selected as the main chain for a hydrocarbon chain?
Answers
Answer:
The longest continuous chain
Explanation:
how many electrons can be assigned to orbitals designated by the quantum numbers n = 6, ℓ = 1?
Answers
The maximum number of electrons that can be assigned to orbitals designated by the quantum numbers n = 6, ℓ = 1 is six.
Quantum numbers n and ℓThe quantum number n represents the principal energy level of an atom. The quantum number ℓ represents the sublevel or subshell of an atom.
For any given principal quantum number, n, there is a maximum of two electrons that can be assigned to any particular orbital of the same angular momentum quantum number, ℓ. In this case, n = 6, meaning that the orbital is part of the sixth energy level, and ℓ = 1, meaning that the orbital is a p-orbital and there is a maximum of six electrons that can be assigned in p-orbital:
↑↓ ↑↓ ↑↓
6px 6py 6pz
Therefore, the maximum number of electrons that can be assigned to this orbital is six.
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Other nuclear problems:
1. Carbon-14 has a half-life of 5,730 years. How old is a fossil with 4 g of citit initally started with
32 g of "C?
Answers
Carbon-14 has a half-life of 5,730 years. A fossil with 4 g of C initially started with 32 g of C is 17200 years old.
Half life of a substance tells about how much time taken by a sample to reduced to 50%.
The 32g of C is decayed and it remains 4g of it. Since carbon decays follows first order reaction. To find out the age of fossil, we need to use the formula which is given as
ln(N_t/N_0)=-λt(i)
Where, N_t = 4g
N_0 = 32 g
We need to find λ using half life of carbon which is given as
λ=(0.693/t(1/2))
where t(1/2)=5730 years
Plug all values in the formula
λ=(0.693 year⁻¹/5730)
λ=0.0012094 year⁻¹
Plug all the available values in the equation (i)
ln(4 g/32 g)=-0.00012094 year⁻¹×t
ln(0.125)=-0.00012094 year⁻¹×t
-2.07944=-0.00012094 year⁻¹×t
t=(-2.07944 year/-0.00012094)
t = 17193.9805 year
t = 17200 year
Therefore, a fossil with 4 g of C initially started with 32 g of C is 17200 years old.
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Which pair of atoms can form an ionic bond?
A.
potassium (K) and fluorine (F)
B.
sodium (Na) and neon (Ne)
C.
fluorine (F) and chlorine (Cl)
D.
sodium (Na) and potassium (K)
Answers
Answer:
neon
Explanation:
Which two events will happen if more H2 and N2 are added to this reaction after it reaches equilibrium?
3H2 + N2 to 2NH3
Answers
If more \(H_{2}\) and \(N_{2}\) are added to the reaction 3\(H_{2}\) + N2 → 2\(NH_{3}\) after it reaches equilibrium, two events will occur Shift in Equilibrium and Increased Yield of \(NH_{3}\)
1. Shift in Equilibrium: According to Le Chatelier's principle, when additional reactants are added, the equilibrium will shift in the forward direction to consume the added reactants and establish a new equilibrium. In this case, more \(NH_{3}\) will be produced to counteract the increase in \(H_{2}\) and \(N_{2}\).
2. Increased Yield of \(NH_{3}\): The shift in equilibrium towards the forward reaction will result in an increased yield of \(NH_{3}\). As more \(H_{2}\) and \(N_{2}\) are added, the reaction will favor the production of \(NH_{3}\) to maintain equilibrium. This will lead to an increase in the concentration of \(NH_{3}\) compared to the initial equilibrium state.
It is important to note that the equilibrium position will ultimately depend on factors such as the concentrations of \(H_{2}\), \(N_{2}\), and \(NH_{3}\), as well as the temperature and pressure of the system. By adding more reactants, the equilibrium will adjust to achieve a new balance, favoring the formation of more \(NH_{3}\).
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When we look at the periodic table of elements, the elements in a have the same number of valence electrons
Answers
Elements in the same group on the periodic table have the same number of valence electrons. The "groups" are the column (or rows). groups are vertically and periods are horizontally.
in the organic product drying step (sodium sulfate) in this experiment, a significant procedural difference was followed compared to previous experiments that involved drying of organic phases. 2 points a) what was the difference in the drying procedure in this experiment? b) what effect, if any, did the new drying procedure have on product yield?
Answers
The difference in the drying procedure in this experiment was the use of sodium sulfate as the drying agent instead of previously used methods.
In previous experiments, other drying agents such as magnesium sulfate or anhydrous sodium sulfate may have been employed to remove residual water from organic phases. However, in this particular experiment, sodium sulfate was used for the drying step. Sodium sulfate is commonly used as a desiccant due to its hygroscopic properties, which means it has a strong affinity for water molecules and can effectively remove water from organic solutions.
The choice of sodium sulfate as the drying agent may have been influenced by factors such as its availability, cost-effectiveness, or its effectiveness in drying the specific organic phase used in the experiment. Sodium sulfate is often preferred for its high capacity to absorb water and its relatively low cost compared to other drying agents. By using sodium sulfate, the researchers aimed to ensure the removal of water from the organic phase, which is crucial for obtaining accurate and reliable experimental results in organic chemistry.
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What properties must a compound have to serve as an acid-base indicator? [Please select ALL that apply.] An acid-base indicator must be hydrophobic. An acid-base indicator must be chemically inert. An acid-base indicator must itself be an acid or a base. An acid-base indicator must be capable of chemical oxidation. An acid-base indicator must change color as a function of pH.
Answers
An acid-base indicator must change color as a function of pH.
The main property of an acid-base indicator is its ability to undergo a color change in response to changes in pH. This allows it to indicate the acidity or basicity of a solution. The indicator molecule typically exists in different forms (protonated or deprotonated) depending on the pH of the solution, resulting in different absorption or reflection of light and hence a visible color change. The other properties mentioned, such as being hydrophobic, chemically inert, an acid or a base, or capable of chemical oxidation, are not essential requirements for an acid-base indicator.
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The children are quiet now. their mother knows they are doing something wrong. (so)
Answers
The children's silence indicates their wrongdoing, noticed by their mother.
What does the quietness of the children suggest to their mother?The sudden silence of the children speaks volumes to their observant mother, who immediately discerns that they are engaged in some form of misbehavior. As a parent, she has likely grown familiar with the normal sounds and activities of her children. Therefore, their uncharacteristic quietness raises suspicion, triggering her intuition that they are up to something they shouldn't be. The absence of their usual noise and activity serves as a telltale sign, leading her to conclude that they are engaged in some form of wrongdoing, prompting her concern and attention.
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When mixing 5.0 moles of HZ acid with water up to complete a volume of 10.0 L, it is found that at
reach equilibrium, 8.7% of the acid has become hydronium. Calculate Ka for HZ. (Note: Do not assume is disposable. )a. 1.7×10^−3
b. 9.5×10^−2
C. 2.0×10^−2
d. 4.1×10^−3
e. 3.8×10^−3
f. 5.0×10^−1
Answers
therefore the correct option is d) 4.1×10⁻³.
Given that the initial concentration of HZ is 5.0 moles and at equilibrium, 8.7% of the acid has become hydronium.
The concentration of HZ that has not reacted is (100% - 8.7%) = 91.3%.
The final concentration of HZ is 5.0 × 0.913 = 4.565 moles.
The final concentration of the hydronium ion is 5.0 × 0.087 = 0.435 M.HZ ⇌ H+ + Z-Ka
= [H+][Z]/[HZ]Ka
= [H+][Z]/[HZ]
= [0.435]² / 4.565
= 0.041
Which is the same as 4.1 × 10-3.
We know that HZ is an acid that will partially ionize in water to give H+ and Z-.
The chemical equation for this reaction can be written as HZ ⇌ H+ + Z-.
The acid dissociation constant (Ka) of HZ is the equilibrium constant for the reaction in which HZ ionizes to form H+ and Z-.Thus, Ka = [H+][Z]/[HZ].
The given problem is a typical example of the dissociation of a weak acid in water. We are given the initial concentration of HZ and the concentration of hydronium ions at equilibrium.
To find the equilibrium concentration of HZ, we can use the fact that the total amount of acid is conserved.
At equilibrium, 8.7% of HZ has dissociated to give hydronium ions.
This means that 91.3% of the original HZ remains unreacted.
Therefore, the concentration of HZ at equilibrium is 5.0 × 0.913 = 4.565 M.
The concentration of hydronium ions at equilibrium is 5.0 × 0.087 = 0.435 M.
Using the equation Ka = [H+][Z]/[HZ], we can substitute the values of the concentrations and the equilibrium constant into the equation and solve for Ka.
Ka = [H+][Z]/[HZ]
= [0.435]² / 4.565
= 0.041 or 4.1 × 10-3.
The answer is d) 4.1 × 10-3.
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What's IUPAC ?
[●] _/_\_ [●]
Answers
Answer:
International Union of Pure and Applied Chemistry
Which one of the following statements best describes the main role of the matrix material in a fiber-reinforced composite?A) Improves the composite processibility.B) Lowers the cost of the composite.C) Allows the formation of complex composite shapes.D) Carries most of the loading on the composite.E) Transfers stress between the reinforcement phase constituents.
Answers
The main role of the matrix material in a fiber-reinforced composite is to transfer stress between the reinforcement phase constituents.
Correct option is E.
This is accomplished by binding the fibers together and forming a continuous network of fibers throughout the composite structure. The matrix material is a polymeric material, such as a thermoplastic or thermoset, which is injected or impregnated into the fibers. It provides a strong bond between the fibers and distributes the load throughout the composite structure.
By providing a bond between the fibers, the matrix material also improves the processibility of the composite by allowing for complex shapes to be formed. Additionally, the matrix material helps to lower the cost of the composite by reducing the amount of reinforcement material required.
Correct option is E.
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8) When two atoms form a chemical bond_________.
a) Only the protons are involved
d) Only neutrons are involved
b) Only the inner most electrons are involved
c) Only the valence electrons are involved
Answers
Answer:
The electrons of an atom that can participate in the formation of chemical bonds with other atoms.
Two substances, both solids, start at the same temperature. You transfer the same amount of energy into both solids, but substance 1 becomes a liquid before substance 2. Based on this evidence, which substance has a stronger molecular attraction? Explain your answer
Answers
Answer:
we get subtract from photography filter paper etc
Answer:
Based on the information provided, substance 1 has a stronger molecular attraction than substance 2. When a substance is heated, the energy that is added is used to overcome the forces that hold the molecules together. If the forces of attraction between the molecules are strong, it will take more energy to separate them and cause the substance to change phase from a solid to a liquid. Therefore, if substance 1 becomes a liquid at a lower temperature than substance 2, it must have weaker forces of attraction between its molecules, indicating that substance 2 has a stronger molecular attraction.
Explanation:
4. In the following reaction: 2NaN3 decomposes to form 2Na + 3N2. If 500 grams of NaN3 decomposes to form 320 grams of Na, how much Na is produced?
180 grams
320 grams
500 grams
Answers
mass of NaN₃ → moles of NaN₃ → moles of Na → mass of Na
500 g NaN₃ ×
1
mol NaN₃
65.01
g NaN₃
= 7.69 mol NaN₃
7.69 mol NaN₃ ×
2
mol Na
2
mol NaN₃
= 7.69 mol Na
7.69 mol Na ×
22.99
g Na
1
mol Na
= 176.8 g Na
Using Mass of N₂
You must make the following conversions:
mass of N₂ → moles of N₂ → moles of Na → mass of Na
323.20 g Na ×
2
mol N₂
28.01
g N₂
= 11.539 mol N₂
11.539 mol N₂ ×
2
mol Na
3
mol N₂
= 7.692 mol Na
7.692 mol Na ×
22.99
g Na
1
mol Na
= 176.85 g Na
Explain what the concept of density means—without using the formula.
Answers
Answer: Density is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume.
Explanation:
pretty self explanitory. (jk i googled it)
The concept of density may be defined as the ratio of the amount of mass with respect to the total volume.
What are the factors that density depends on?The factors that density depends on are the mass and the volume of the substance, where the mass of the substance depends on the amount of matter whereas the volume of the substance depends on the amount of space that is usually consumed by the substance.
The density of any object characteristically works on the mass of the object in comparison to its volume. Every object or substance present on this earth's surface has its own characteristic density due to the mass, arrangement of its atoms, size, etc.
Therefore, the concept of density may be defined as the ratio of the amount of mass with respect to the total volume.
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Draw the best Lewis structure for ICl5.
Answers
Answer:
can you help me in something please?
The Lewis structure for ICl5, also known as iodine pentachloride, involves representing the valence electrons of the atoms involved and illustrating the bonding between them.
1. Determine the total number of valence electrons: Iodine (I) is in Group 17 of the periodic table and has 7 valence electrons.
Chlorine (Cl) is in Group 17 of the periodic table and also has 7 valence electrons.
Since there are five chlorine atoms in ICl5, we need to multiply the number of valence electrons of chlorine by 5.
Total valence electrons = 7 + (5 × 7) = 42
2. Identify the central atom: In ICl5, iodine (I) will be the central atom, as it is less electronegative than chlorine (Cl).
3. Connect the atoms with single bonds: Connect the iodine atom (I) to each of the five chlorine atoms (Cl) using single bonds.
Cl-I-Cl-Cl-Cl-Cl
4. Distribute the remaining electrons: Distribute the remaining valence electrons around the outer atoms (chlorine) and the central atom (iodine). Each chlorine atom requires 8 electrons for stability, and the iodine atom requires 8 electrons as well.
Cl-I-Cl-Cl-Cl-Cl
Place lone pairs on the outer atoms until they have an octet: Cl-I-Cl-Cl-Cl-Cl (each Cl has 8 electrons)
Distribute the remaining electrons on the central atom: Cl-I-Cl-Cl-Cl-Cl (iodine has 12 electrons)
5. Check if all atoms have an octet: In this case, each chlorine atom (Cl) has a full outer shell with 8 electrons, satisfying the octet rule. The iodine atom (I) also has a complete octet with 8 electrons.
Cl-I-Cl-Cl-Cl-Cl
The Lewis structure for ICl5 is represented by iodine (I) in the center bonded to five chlorine (Cl) atoms using single bonds.
Each chlorine atom has 8 electrons around it, and the iodine atom has 8 electrons, fulfilling the octet rule for stability.
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what is pollution?
when the tip of
a
plant is cut, it does not grow tall, why
Answers
Answer:
Explanation: the tip of a growing plant contains special rapidly diving cells called apical meristem ,these cells are responsible for increase in the length of the plant . if we cut out these cells ,length growth of the plant will be stunned as these cells are not present anyplace else.
pls help i am desperate
Answers
Answer:
can't see
Explanation:
What is the notation for the enthalpy of solution?
O -Hsol
O AH sol
Ο ΔΕ
O +Hsol
Answers
The notation for the enthalpy of the solution is ∆Hsol. The correct answer is option ∆Hsol.
The enthalpy of solution is a measure of the amount of heat absorbed or released when a solute is dissolved in a solvent to form a solution. If the value of ∆Hsol is positive, it means that heat is absorbed during the process of dissolving the solute, while a negative value of ∆Hsol indicates that heat is released during the same process. This value is often used to predict whether a given solute will dissolve in a given solvent, as well as the relative amounts of solute and solvent that will be required to form a solution. The enthalpy of solution can be calculated experimentally by measuring the temperature change that occurs when a known amount of solute is dissolved in a known amount of solvent. Alternatively, it can be calculated theoretically using thermodynamic data for the solute and solvent.For more questions on enthalpy
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A boulder rests on a ledge 31.2 m above a lake. If it has 2.65 x 10 J of gravitational
potential energy relative to the lake surface, what is the mass of the boulder?
Answers
Answer:
This question is incomplete, the gravitational potential energy is 2.65 x 10^5 J
mass of the boulder = 866.7g
Explanation:
Potential energy (P.E) refers to the energy due to the position of a body. It can be calculated as follows:
P.E = m × g × h
Where;
m = mass of substance (g)
g = acceleration due to gravity (m/s²)
h = height (m)
According to the information provided in this question,
h = 31.2 m
g = 9.8m/s²
m = ?
P.E = 2.65 x 10^5 J
Using P.E = m × g × h
2.65 x 10^5 = m × 9.8 × 31.2
2.65 x 10^5 = 305.76m
265000 = 305.76m
m = 265000 ÷ 305.76
m = 866.69
mass of the boulder = 866.7g
HELP WILL GIVE BRAINLIEST!!
Using the following reaction, calculate the percent yield of CaO if 20.4g of CaCO3 are heated and 10.6g of CaO are actually produced
CaCO3(s) → CaO(s) + CO2(g)
Answers
Answer:
92.79%
Explanation:
The Molar mass :
Molar mass of CaC03 = (40 + 12 + (16*3)) = 100 g/mol
Molar mass of Ca0 = (40 + 16) = 56 g/mol
Theoretical yield :
20.4g CaCO3 * 56g Ca0 / 100g CaCO3
= (20.4 * 56)/100 = 11.424 CaO
The actual yield Given is : 10.6g Ca0
The percentage yield is given by :
% yield = Actual yield / theoretical yield
% yield = 10.6 g / 11.424 g * 100%
% yield = 0.9278711 * 100%
Percentage yield = 92.79%
A 40.0 gram sample of water releases 503 Joules of energy when cooled from 25.0˚C to 22.0˚C. What is the value of the specific heat of water? Round to the nearest hundredth.
Answers
Answer:
Explanation:
i dont know either but im working on it now, i think that you are supposed to use this equation Q = m * ΔT * Cp once i get the answer ill tell you
which of the following polymer(s) would be suitable for the fabrication of cups to contain hot coffee: polyethylene, polypropylene, poly(vinyl chloride), pet polyester, and polycarbonate. why?
Answers
Among the given polymers, polycarbonate would be suitable for the fabrication of cups to contain hot coffee.
Polycarbonate is a thermoplastic polymer known for its excellent heat resistance and durability. It has a high glass transition temperature and can withstand high temperatures without melting or deforming. This makes it suitable for holding hot beverages such as coffee without compromising its structural integrity.On the other hand, polyethylene, polypropylene, poly(vinyl chloride) (PVC), and PET polyester have lower heat resistance compared to polycarbonate. These polymers may soften or deform at higher temperatures, which can be a concern when handling hot liquids like coffee.Therefore, polycarbonate stands out as a suitable choice due to its superior heat resistance, making it well-suited for the fabrication of cups to contain hot coffee.
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