Which of the following bonds would be the most polar without being considered ionic?a. F-Hb. Na-Fc. S-Hd. Cl-He. O-H

Answer:

no, food is not a fuel because it just give energy to do many activities but it will not provide any fuel only the dead and decaying material which berries under the soil then after a long years it becomes fossil fuel

Answer:

B and C is corrent i got it right on edge

Explanation:

Answer:

Electrons move among orbitals of different energies.

Electrons move freely among atoms (delocalized).

Explanation:

In the redox reaction occurring in a nickel-cadmium (nicad) battery, cadmium (Cd) is oxidized, while nickel(II) oxide \((NiO_2)\) is reduced. The oxidizing agent is \(NiO_2\), and the reducing agent is Cd.

In the given redox reaction:

\(\[Cd(s) + NiO_2(s) + 2H_2O(l) \rightarrow Cd(OH)_2(s) + Ni(OH)_2(s)\]\)

The substance being oxidized is cadmium (Cd), which starts in its elemental state (Cd(s)) and is converted to cadmium hydroxide \((Cd(OH)_2(s))\). In this process, the oxidation state of Cd increases from 0 to +2, indicating the loss of electrons.

The substance being reduced is nickel(II) oxide ( \(NiO_2\)), which starts in its oxidized form and is reduced to nickel(II) hydroxide (\(Ni(OH)_2\)). The oxidation state of Ni decreases from +4 to +2, indicating the gain of electrons.

Based on these observations, we can identify the oxidizing agent and reducing agent. The oxidizing agent is the substance that gets reduced, while the reducing agent is the substance that gets oxidized. In this case,  \(NiO_2\)is the oxidizing agent as it causes the reduction of Cd, and Cd is the reducing agent as it undergoes oxidation to facilitate the reduction of  \(NiO_2\).

Therefore, in the given redox reaction, cadmium is oxidized and nickel(II) oxide is reduced, with  \(NiO_2\) acting as the oxidizing agent and Cd serving as the reducing agent.

To learn more about redox refer:

https://brainly.com/question/21851295

#SPJ11

Answer:

The closer the transition state to the product, the more stable it is. It is because this transition state is closest to the final form of the product, which is usually stable

Answer:

The answer is option B.

Hope this helps you

Answer:

equal number of electrons and protons

Explanation:

electron is negatively charged and proton is positively charged for an atom to stay neutrality # of electrons and protons must be equal.

9. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product.

10. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.

11. Single attribute product sustainability attributes are assessed for particular issues such as emission of VOCs, thermal performance, and energy performance. Thus, option E. (a, b, c) is correct.

12. International Green Construction Code is developed by ICC (International Code Council) in response: all of the above is the correct answer (Option E).

13. The statement "lumber applies to wood products derived directly from logs through sawing and planning operations with no other manufacturing except cutting to length" is true.

14. The statement "the terms lumber, solid lumber, solid sawn lumber, and sawn lumber are synonymous" is true.

15. Wood is known for its high strength-per-weight ratio as compared to other structural materials. (Option B).

16. The statement "Wood is much stronger by weight than concrete" is false because wood is less strong by weight than concrete.

17. The statement "Concentric annual rings are visible in the vertical section of a tree and provide a good estimation of the age of the tree" is true.

HPD stands for Health Product Declaration. In terms of Material Sustainability Attribute HPD gives information about a product's content, any potential health hazards associated with the product, and the safe handling and disposal of the product. VOC stands for Volatile Organic Compounds. In terms of sustainability, VOC gives information about chemicals emitted by building materials and finishes that can cause negative health effects for people and contribute to air pollution.

International Green Construction Code is developed by ICC (International Code Council) in response to demand and initiatives such as LEED. It is a baseline code as opposed to a multi-tiered rating system. It applies primarily to non-residential buildings. It is newly developed and not yet widely adopted and has some conflicts with the LEED certification process.

Thus, the correct answer is

11. E

12. E

13. True

14. True

15. B

16. False

17. True

Learn more about HPD: https://brainly.com/question/32321815

#SPJ11

The balanced equation for the reaction between aqueous zinc bromide (ZnBr₂) and solid aluminum (Al) to produce aqueous aluminum bromide (AlBr₃) and solid zinc (Zn) is:

3ZnBr₂ + 2Al -> 2AlBr₃ + 3Zn

In this reaction, three moles of zinc bromide (ZnBr₂ ) react with two moles of aluminum (Al) to yield two moles of aluminum bromide (AlBr₃) and three moles of zinc (Zn). The equation is balanced in terms of both mass and charge, ensuring that the number of atoms of each element is the same on both sides of the equation.

This reaction represents a single replacement or displacement reaction, where aluminum replaces zinc in the compound to form a new compound and release zinc as a solid product.

Learn more about balanced equation,

https://brainly.com/question/7144750

#SPJ4

Answer:

Explanation:

water

H. 2. O is the chemical formula for water, meaning that each of its molecules contains one oxygen and two hydrogen atoms

The molecular formula of the compound is C₄O₂H₈.

Mass of the empirical formula divided by its multiple gives the molecular mass. (We multiply the subscripts by the multiple of the empirical formula to obtain the molecular formula.) If n is a multiple of the empirical formula, the molecular formula is (Empirical Formula)n.

The compound C₂OH₄ has a molar mass of 88.

The empirical formula of the compound is C₂OH₄

C has an atomic mass of 12.

Oxygen has an atomic mass of 16 while hydrogen has an atomic mass of 1.

Thus, the empirical mass of C₂OH₄ = 12×2 + 16 + 4×1

The empirical mass of C₂OH₄ = 24 + 46 + 4

The empirical mass of C₂OH₄ = 44

The empirical mass is 44

The molar mass is 88

Thus n value is 88/44 = 2

The formula of the compound is (C₂OH₄)₂ = C₄O₂H₈

The molecular formula of the compound is C₄O₂H₈.

To know more about molecular formula visit:

https://brainly.com/question/26297154

#SPJ4

Complete question is" A compound with an empirical formula of c2oh4 and a molar mass of 88 grams per mole. Calculate its molecular formula".

The energy difference (∆e) for the transition from n = 5 to n 2 for 1 mol of H atoms when one photon is emitted at 434 nm is 2.393 x 10⁻³ J/mol.

To calculate the energy difference (∆e) in joules per mole (j/mol) for the transition from n = 5 to n 2 for 1 mole of hydrogen (H) atoms when one photon is emitted at 434 nm, we can use the formula:
∆e = hc/λ
Where:
h is Planck's constant (6.626 x 10⁻³⁴ Js)
c is the speed of light (2.998 x 10⁸ m/s)
λ is the wavelength of the photon (434 nm or 434 x 10⁻⁹ m)

First, we need to convert the wavelength to meters:
λ = 434 x 10⁻⁹ m

Now, we can substitute the values into the formula:
∆e = (6.626 x 10⁻³⁴ Js × 2.998 x 10⁸ m/s) / (434 x 10⁻⁹ m)
∆e = 1.442 x 10^-19 J

Finally, to find the energy difference in j/mol, we need to divide the value by Avogadro's number (6.022 x 10^23 mol^-1):
∆e = (1.442 x 10⁻¹⁹ J) / (6.022 x 10²³ mol⁻¹)
∆e = 2.393 x 10⁻⁴³ J/mol

Learn more about energy -

brainly.com/question/874116

#SPJ11

In terms of their polarity from most polar to least polar, the ranking will be:

The polarity of a solvent refers to its ability to dissolve polar or ionic compounds, with more polar solvents being better at dissolving polar compounds and less polar solvents being better at dissolving nonpolar compounds.

The polarity of a solvent can be estimated using various properties, including its dielectric constant, dipole moment, and hydrogen bonding ability.

From most polar to least polar, the solvents listed in the question can be ranked as follows:

Note that this ranking is based on general trends and should be considered a rough guide, as the polarity of solvents can vary depending on the specific conditions and interactions involved.

Learn more about polarity here: https://brainly.com/question/24692494

#SPJ4

Answer:

In order of the colors of the pH test papers from most acidic solutions to most alkaline solutions, the colors of the pH test papers would be

               Red > Orange/Pink > Purple > Blue

(Red) Most acidic                                (Blue)Most alkaline

Explanation:

We can use the different colors of pH test papers to determine the acidity or alkalinity of a solution.

Definitions

A pH test paper is a strip of indicator paper which changes colour when placed in acidic or alkaline solutions.

A solution is said to be acidic if it turns the colour of the pH test paper RED

A solution is said to be alkaline/basic if it turns the colour of the pH test paper BLUE

Color changes

If the pH test paper turns red, then the solution is a very strongly acidic solution with pH less than 3 ( ie pH between 1-3)

If the pH test paper turns orange or pink, then the solution is a weak acidic solution with pH greater than 3 ut less than 7

If the pH test paper turns purple, then the solution is a weak alkaline solution with pH greater between 8-11

If the pH test paper turns blue, then the solution is a very strong alkaline solution with pH between 11 - 14

Summary

Therefore, in order of color changes from the most acidic solutions to most alkaline solutions, the colors of the pH test papers would be

Red > Orange/Pink > Purple > Blue

Most acidic                                Most alkaline

Answer:

d<c<a<b

Explanation:

The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals.

Answer:

On July 4, 1776—the day the Declaration of Independence was approved by the Second Continental Congress—the prevailing mood was trepidation and fear.

Explanation:

Answer:

Sublimation is the process of transformation directly from the solid phase to the gaseous phase, without passing through an intermediate liquid phase. ... This is because the pressure of their triple point is very high and it is difficult to obtain them as liquids.

Answer:

- One mole of oxygen was used in this reaction.

- Two moles of water were produced from this reaction.

Explanation:

In addition: - Two moles of hydrogen were used.

Given the data from the question, the correct statement is:

To know which options are correct, we shall determine the number of mole of O₂ used and the number of mole of H₂O produced.

Balanced equation

2H₂ + O₂ —> 2H₂O

From the balanced equation above,

2 moles of H₂ required 1 mole of O₂

Therefore,

1 mole of H₂ will require = 1 / 2 = 0.5 mole of O₂

Thus, 0.5 mole of O₂ is needed for the reaction

From the balanced equation above,

2 moles of H₂ reacted to produce 2 moles of H₂O

Therefore,

1 mole of H₂ will also react to to produce 1 mole of H₂O

Thus, 1 mole of H₂O was produced from the reaction.

SUMMARY

When 1 mole of H₂ was used in the reaction,

Considering the options given in the question above, the correct statement is:

Learn more about stoichiometry:

https://brainly.com/question/14735801

The false statement regarding the Lewis structure for the nitric acid molecule, HNO3, is option B) The N-O bond order is 4/3.

The N-O bond order is actually 4/3 in one of the resonance structures of HNO3, but not in the overall molecule. The molecule requires more than one resonance structure, as stated in option A.

In water, HNO3 will dissociate to form H+ and NO3-, not H3O+, as stated in option C.

The formal charge on nitrogen can be calculated as 5-(0+6/2+2x2/2)=0, not +1 as stated in option D.

The oxidation state of nitrogen can be calculated as the sum of valence electrons of nitrogen and the electrons it has gained or lost, which is +5 in HNO3, as stated in option E.

To know more about nitric acid. please visit.....

brainly.com/question/32309502

#SPJ11

The emission of carbon that are avoided are called scope 4 Carbon emission.

The scope for Carbon emissions are those emissions of carbon which are reduced or avoided.

They can also be defined as the reductions that have occurred outside of a products complete cycle or the value chain.

The product cycle are those which are related to the manufacturing cycle of the carbon related products.

Collectively all the greenhouse emissions that are avoided or which are reduced to a very significant level are known as scope 4 emissions.

To know more about carbon emission, visit,

https://brainly.com/question/1301348

#SPJ4

Answer:

1. false

2. true

3.true

4.true

Explanation:

Answer:

1. True

2. True

3. True

4. True

5. True

HOPE THIS HELPS

Giant molecules are also referred to as macromolecules and polymers when numerous molecules are combined. These atoms are arranged in a three-dimensional structure and are joined by covalent bonds.

A giant molecule, also known as a macromolecule, is a usually large molecule crucial to biophysical processes, such as a protein or nucleic acid. It is made up of many atoms that are covalently bound. Large non-polymeric molecules including lipids and macrocycles, as well as biopolymers, are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, giant molecules can also be found in research materials like carbon nanotubes.

Different experts use different terminology for giant molecules. For instance, in biology, giant molecules refer to the four immense molecules that make up living things, while in chemistry, it refers to aggregates of two or more molecules that are held together by intermolecular forces rather than covalent bonds yet that is difficult to dissolve apart. The term giant molecule is frequently referred to as high polymer in British English.

Learn more about giant molecule : https://brainly.com/question/13277913

Gold is found in various ionic compounds, but one of the most well-known and commercially significant compounds is gold chloride, also known as auric chloride or gold(III) chloride.

The chemical formula for gold chloride is AuCl₃. Gold chloride is an ionic compound composed of gold cations (Au³⁺) and chloride anions (Cl-). It is a yellow-orange solid that is highly soluble in water. Gold chloride can be formed by reacting the gold metal with chlorine gas or by dissolving the gold metal in aqua regia, which is a mixture of concentrated nitric acid and hydrochloric acid.

Gold chloride has several uses and applications. It is commonly used in the field of nanotechnology for the synthesis of gold nanoparticles. These nanoparticles have unique optical, electronic, and catalytic properties, making them valuable in various fields such as medicine, electronics, and materials science.

In addition to gold chloride, gold can also form other ionic compounds with different anions, such as gold bromide (AuBr), gold iodide (AuI), gold sulfide (Au2S), and gold cyanide (AuCN). These compounds have their own unique properties and applications.

know more about anions here:

https://brainly.com/question/31485566

#SPJ8

Answer:

18.0g of glucose are needed

Explanation:

Molarity, M, is an unit of concentration widely used in chemistry. Is defined as the ratio between moles of solute (In this case, glucose) and liters of solution (50mL = 0.050L).

To solve this question we must find the moles of glucose that we need to prepare the solution. Then, using the molar mass of glucose (180.156g/mol) we can find the mass that we need:

Moles Glucose:

0.050L * (2.0mol / L) = 0.100 moles Glucose

Mass glucose:

0.100moles Glucose * (180.156g / mol) = 18.0g of glucose are needed

Answer:

Mechanical weathering is usually caused by extreme hot and cold temperatures. Water seeps into cracks in rocks, freezes, and expands, causing further breakdown of rocks. Wind is another example of mechanical weathering.

Explanation:

Answer:

carbon dioxide i think

Explanation:

Moles of lead nitrate used mol Product mass Molar mass Pb 207 g/mol Molar mass N 14 g/mol Molar mass o 16 g/mol =  56 .65 %

moles of Pb(\(NO_{3}\)) = 14.8 / 331 = 0.0447

∵ moles = mass / molar mass

\(Pb(NO_{3}) + 2Cl = pbcl_{2} + 2NO_{3}\)

\(\frac{moles of Pb (NO_{3}) }{1} = \frac{moles of Pbcl_{2} }{1}\)

moles of \(Pbcl_{2}\) = 0.0447

Theoretical mass of \(Pbcl_{2}\) = moles * molar mass

= 0.0447 * 278

= 12.4266

% yield = Actual mass of \(Pbcl_{2}\) / Theoretical mass of \(Pbcl_{2}\) * 100

= \(\frac{7.04}{12.4266} * 100\)

= 56 .65 %

Lead(II) chloride (PbCl2) is an inorganic compound that is white strong under surrounding conditions. It is ineffectively solvent in water. Lead(II) chloride is one of the main lead-based reagents. It likewise happens normally as the mineral cotunnite.

To know more about chloride click here.

brainly.com/question/15296925

#SPJ4

the complete question is:

Begin Scenario An experiment was carried out to make lead chloride from lead nitrate. 7.04 g of lead chloride was obtained from 14.8 g of lead nitrate. Determine the percentage yield of lead chloride. Reactant mass 14.8 g 7.04 g a Determine the moles of lead nitrate, PbNO3, used in the experiment (To avoid introducing rounding errors on intermediate calculations, enter your answer to four significant figures.) Moles of lead nitrate used mol Product mass Molar mass Pb 207 g/mol Molar mass N 14 g/mol Molar mass o 16 g/mol

The following H atom transitions, that would emit the photon of the light with the greatest energy is n = 2 to n = 1. The correct option is c.

The largest energy is given as :

ΔE = 13.6 ( 1/nf² - 1/ ni²)

a) n = 5 to n = 3

ΔE = 13.6 ( 1/3² - 1/ 5²)

ΔE = 0.97 eV

b) n = 4 to n = 2

ΔE = 13.6 ( 1/2² - 1/ 4²)

ΔE = 2.4 eV

c) n = 2 to n = 1

ΔE = 13.6 ( 1/1² - 1/ 2²)

ΔE = 10.2 eV

d) n = 5 to n = 4

ΔE = 13.6 ( 1/4² - 1/ 5²)

ΔE = 0.7 eV

Thus, the transition would emit the photon of light with the greatest energy is n= 2 to n= 1. The correct option is c.

To learn more about transition here

https://brainly.com/question/14649497

#SPJ4

The 134.6 milliliters of 0.644 M NaOH are required to precipitate all of the Fe2+ ions in the FeBr2 solution.

To calculate the number of milliliters of 0.644 M NaOH required to precipitate all of the Fe2+ ions in 156 mL of 0.556 M FeBr2 solution, we can use the stoichiometry of the reaction between Fe2+ ions and NaOH.

The balanced equation for the reaction is:

FeBr2 + 2NaOH → Fe(OH)2 + 2NaBr

From the equation, we can see that 1 mole of FeBr2 reacts with 2 moles of NaOH to form 1 mole of Fe(OH)2.

To find the amount of NaOH required, we need to determine the moles of Fe2+ ions in the 156 mL of 0.556 M FeBr2 solution.

Moles of Fe2+ ions = volume (L) x concentration (M)
                   = 0.156 L x 0.556 M
                   = 0.086736 moles

Since 1 mole of FeBr2 produces 1 mole of Fe2+ ions, we need 0.086736 moles of NaOH to react with all of the Fe2+ ions.

Now, we can use the concentration of NaOH to calculate the volume needed.

Volume (L) = moles / concentration (M)
          = 0.086736 moles / 0.644 M
          = 0.1346 L

To convert the volume to milliliters, we multiply by 1000.

Volume (mL) = 0.1346 L x 1000
            = 134.6 mL

Therefore, 134.6 milliliters of 0.644 M NaOH are required to precipitate all of the Fe2+ ions in the FeBr2 solution.

To know more about precipitate visit:-

https://brainly.com/question/30904755

#SPJ11

The two ways in which the physical state of matter can be changed are melting and freezing.

For such more questions on physical state

https://brainly.com/question/30214939

#SPJ8

Answer:

Yes, but not all. Due to some elements don't have reaction power due to their octet state they tend not react. So they most likely wouldn't be in

a compound. Elements like Noble gases elements the group 8 or as they can call it the group 0(rare gases).

The effect on the rate of reaction for this SN1 process when doubling the concentration of t-butyl bromide is an increase by a factor of 2, while quadrupling the concentration of methanol will have no impact on the rate.

In the solvolysis of t-butyl bromide in methanol, t-butyl methyl ether is produced through an SN1 reaction. When discussing the rate of an SN1 reaction, it's important to note that it is a two-step process involving the formation of a carbocation intermediate. The rate-determining step (RDS) is the first step, which involves the ionization of t-butyl bromide to form a carbocation and a bromide ion.

The rate of an SN1 reaction is directly proportional to the concentration of the substrate (t-butyl bromide) and independent of the concentration of the nucleophile (methanol). Thus, doubling the concentration of t-butyl bromide will double the rate of reaction, as it increases the availability of the substrate for ionization.

On the other hand, quadrupling the concentration of methanol will not affect the rate of the reaction, as it is not involved in the RDS. Methanol reacts with the carbocation in the second step, which is a fast step and does not determine the overall rate.

For more such questions on t-butyl bromide, click on:

https://brainly.com/question/24244711

#SPJ11