Fuels react with oxygen to produce carbon dioxide.The reaction of a fuel with oxygen can produce a different oxide of carbon. Name this different oxide of carbon and explain why it is produced'

Answer:

joib

Explanation:

Answer:

Explanation:

A1. Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.

A2. The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water. ... For example, the reaction of hydrochloric acid, HCl, with sodium hydroxide, NaOH, solutions produces a solution of sodium chloride, NaCl, and some additional water molecules

A3. Methyl orange has the property to color alkaline and neutral water yellow. If the water becomes acidic, it turns red immediately.

The application of force in the direction of the motion of an object. The second scenario involves applying force to a moving item that is traveling in the opposite direction.

A force is an influence that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. A force has both a direction and a magnitude.

Force is used to describe a body's tendency to modify or change its state as a result of an external cause. When force is applied, the body can also alter its size, shape, and direction.

A push or pull that an object experiences as a result of interacting with another item is known as a force. Every time two items interact, a force is exerted on each of the objects. The force is no longer felt by the two objects when the interaction ends.

Thus, Force applied to an item in motion that originates in any direction constitutes the third situation where force is created.

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Barrier islands are not permanent because the wind and the waves are constantly redistributing the sand.

Barrier islands are particularly flat or lumpy sand regions that are formed parallel to the mainland shore by wave and tide action. They typically appear in groups called chains, which can range in size from a few to more than a dozen islands.

They are called "barriers" because they act as a physical barrier, protecting the mainland from the effects of strong waves, storm surges, and flooding. Barrier islands are formed by a variety of processes, including longshore drift, sediment deposition, and sea level changes.

Barrier islands typically consist of sandy beaches on their seaward side and marshes, lagoons, or dunes on their landward side.

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The  name of the organic compound with structural formula of nine carbons and sixteen hydrogens  depends on different factors

The nomenclature of the organic molecule comprising nine carbons and sixteen hydrogens is determined by the arrangement of its atoms as well as the nature of the chemical bonds linking them together. Cyclononane is a circular formation of nine carbon atoms.

An organic substance belongs to a group of chemicals that have carbon atoms linked to each other and other atoms through covalent bonds, and are present in the biological cells. Organic compounds contain usual elements such as carbon, as well as hydrogen, oxygen, and nitrogen.

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Answer:

D

Explanation:

Option D is correct

Cycloalkanes(1-bromo 2-ehtyl cyclohexane is this case) mainly preferred chair conformers while undergoing elimination reaction and further products are not those that predicted by zaitsev's rule.

Hence, the correct answer is faster for the trans isomer since there is a hydrogen anti-periplanar to the bromine in the preferred chair conformer of the compound.

The binding energy per nucleon for the ¹⁹F nucleon is equal to 7.786 MeV/nucleon.

Binding energy can be defined as the minimum quantity of energy that is required to remove the particle from the system. Nuclear binding energy can be described as the energy required to dismantle a nucleus of an atom into free neutrons and protons.

The binding energy will be determined from the mass defect. Mass defect is calculated from the difference between the mass observed and the expected combined mass.

Given the mass of the ¹⁹F = 18.9984 a.m.u.

The mass defect for the ¹⁹F can be calculated as:

Δm = \((M _n +M_p) - M_F\)

\(\triangle m =( 9\times 1.0078 + 10 \times 1.0087 )- 18.9984\)

\(\triangle m =0.1588 \;a.m.u.\)

The binding energy for the fluorine can be calculated as:

E = Δmc²

E = 0.1588 × 931.5

E = 147.92 MeV

The binding energy per nucleon of ¹⁹F can be calculated as:

B.E.N. = 147.92/18.9984 = 7.786 MeV per nucleon

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The pressure of 1.27 L of a gas at 288°C, if the gas had a volume of 875 ml at 145 kPa and 176°C is 1.195 atm.

Ideal gas equation of any gas will be represented as:
PV = nRT, where

P = pressure

V = volume

n = moles

R = universal gas constant

T = temperature

First we calculate the moles of gas, when the volume of gas 875 ml at

145 kPa and 176°C as:

n = (1.431atm)(0.875L) / (0.082L.atm/K.mol)(449.15K)

n = 1.252 / 36.83 = 0.033 moles

Now we measure the pressure of 0.033 moles of gas of 1.27 L of a gas at 288°C as:

P = (0.033mol)(0.082L.atm/K.mol)(561K) / (1.27L) = 1.195 atm

Hence required pressure of gas is 1.195 atm.

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To calculate the formula mass of an unknown acid using the volume of NaOH required to reach the endpoint of the titration, you will need to use the following formula: Formula mass = (molarity of NaOH) x (volume of NaOH) x (molar ratio of NaOH to acid) / (moles of acid).

Here are the steps to follow: Write the balanced equation for the reaction between the acid and NaOH.

Record the volume of NaOH which is used in the titration.

Determine the molarity of the NaOH solution. This can be done by dividing the number of moles of NaOH used in the titration by the volume of NaOH used.

Determine the molar ratio of NaOH to acid from the balanced equation.

Calculate the number of moles of acid that reacted with the NaOH by multiplying the volume of NaOH used in the titration by the molarity of NaOH.

Calculate the formula mass of the acid by plugging in the values for the molarity of NaOH, volume of NaOH, molar ratio of NaOH to acid, and moles of acid into the formula given above.

For example, suppose that you titrated an unknown acid with 0.100 M NaOH, and it took 25.0 mL of NaOH to reach the endpoint. The chemical equation for the reaction is:

Acid + NaOH → NaA + H₂O

The molar ratio of NaOH to acid is 1:1. Let's assume that you used 0.025 moles of NaOH in the titration. Then:

Molarity of NaOH = 0.100 M

Volume of NaOH =25.0 mL =0.0250 L

Moles of acid = (0.100 M) x (0.0250 L) x (1 mol acid / 1 mol NaOH) = 0.00250 mol acid

Now, let's assume that the formula mass of the acid is X. Then:

Formula mass = (0.100 M) x (0.0250 L) x (1 mol acid / 1 mol NaOH) / (0.00250 mol acid) =  X g/mol

Therefore, the formula mass of the unknown acid is X g/mol.

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--The given question is incomplete, the complete question is

"How to calculate the formula mass of an unknown acid using the manual titration volume of NaOH with which it was titrated, used to reach the endpoint?"--

Answer:

2,6 dimethyl heptene

I hope it's helps you

Answer:

THE STANDARD ENTHALPY OF FORMATION OF AMMONIA GAS IS 293.75kJ OF HEAT.

Explanation:

To solve this question, you must first write out the equation for the reaction.

Equation:

N2 (g) + 3H2(g) <-------> 2NH3(g)

So therefore, when 50 g of N2 reacts, 164.5 kJ of Heat was liberated.

First equate the number of moles of Nitrogen and ammonia gas

1 mole of N2 produces 2 moles of ammonia

Calculate the molar mass of each variables:

Molar mass of N2 = 14*2 = 28 g/mol

Molar mass of ammonia = ( 14 + 1*3) = 17 g/mol

So, 1 mole of N2 = 2 moles of NH3

28 g/mol of N2 = 17 * 2 g/mol of NH3

If 50 g of nitrogen was used to react with excess hydrogen, the mass of ammonia formed is;

28 g of N2 = 34 g/mol of NH3

50 g of N2 = ( 50 * 34 / 28 ) g of NH3

= 1700 / 28

= 60 .71 g of ammonia.

At standard conditions, 34 g of ammonia will liberate 164.5 kJ of heat. What amonut would be generated by 60.71 g of ammonia?

34 g of ammonia = 164.5 kJ of heat

60.71 g of ammonia = ( 60.71 * 164.5  / 34) kJ of heat

= 9987.5 / 34

= 293.75 kJ of heat.

In other words, the standard enthalpy of formulation for ammonia gas is 293.75 kJ of heat.

Answer:

copper - 52 (or Cu - 52)

⁵²Cu

Explanation:

Isotopes are different atoms of the same element that differ in the number of neutrons. Therefore, you can determine which element this is by examining the number of protons. All atoms with 29 protons are copper (Cu).

The mass number is the total number of protons and neutrons in an atom. Therefore, the mass number of this isotope is 52 (29 + 23 = 53). When writing an elemental symbol, the mass number is found on the top left.

As such, the name of this isotope is copper - 52 (or Cu - 52) and the symbol is ⁵²Cu.

The properties of a natural resource that make it useful for humans as a material or energy source is the ability to convert mass into energy and vice versa.

The expression natural resources make reference to all types of matter and energy extracted from nature that can be used to produce goods and services.

Some examples of natural resources include for example irreversible resources such as fossil fuels (i.e., oil, or coal, gas, minerals such as metals, rocks, etc) as well as those based on the use of reversible energy such as eolic air energy, solar radiation or sunlight, soil and hydric resources or water.

Therefore, with this data, we can see that natural resources can be defined as any material and or energy obtained from nature that may be irreversible or reversibly used to produce goods and services.

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The abbreviated electron configuration for Al2+ is [Ne]3s2 3p1

since Al has 13 electrons :  [Ne]3s2 3p1

Al2+ means it has lost 2 electrons to become :  [Ne]3s1

Electronic configurations in chemistry can be describe as the way each electron move independently in an orbital, in an average field created by all other orbitals. which also means  the arrangement of electrons in orbitals around an atomic nucleus.

An electron in simple term is a negatively charged subatomic particle that binds together with protons and neutrons  to form an atom's nucleus. it can also be seen as a tiny particle of matter that is smaller than an atom and has a negative electrical charge in it.

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There are 7 protons, 7 electrons, and 7 neutrons in an atom of nitrogen. It is an element that can have seven protons is nitrogen, which has the atomic number seven.

Each atom's nucleus contains two subatomic particles called neutrons and protons. Hydrogen is the sole exception, as it has a single proton in its nucleus.

Seven protons and 7 neutrons make up nitrogen. On the other hand, a radioactive form of N possesses eight neutrons. Atomic number 7 has seven protons, whereas radioactive nitrogen has eight neutrons.

In comparison to positively charged protons, neutrons are somewhat heavier and have an electric charge that is neither positive nor negative.

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Answer: 380 J. Please mark

Explanation:

The balanced reaction with correct coefficients for the given chemical reaction is given as,

4Sb + 3O₂ → Sb₄O₆

H₂S + Cl₂ → S + 2HCl

Balanced chemical equations are defined as the equations that have the same number and type of each atom on both sides of the equation. The coefficients in a balanced equation must be in the simplest whole number ratio. In a balanced chemical equation mass is always conserved.

The equation Sb + O₂ → Sb₄O₆ is written after balancing as 4Sb + 3O₂ → Sb₄O₆. Therefore, its coefficients are 4 and 3.

The equation H₂S + Cl₂ → S + HCl is written after balancing as H₂S + Cl₂ → S + 2HCl. Therefore, its coefficient is 2.

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Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

Answer:

D

Explanation:

Grinding to a powder increases the surface area of the charcoal .

The reaction of charcoal (carbon) and oxygen is sped up by grinding the charcoal into a fine powder. This is an example of increasing surface area to increase reaction rate. Option D is the answer.

Grinding charcoal into a fine powder enhances its reactivity by increasing surface area. This finer texture promotes more frequent collisions between charcoal particles and oxygen molecules, facilitating faster chemical reactions.

The heightened contact points enable efficient utilization of reactants, optimizing resource consumption. Shorter diffusion paths within smaller particles expedite reactant diffusion, aiding quicker reaction rates.

Additionally, the augmented surface area promotes efficient heat transfer, crucial in reactions involving temperature changes.

Grinding charcoal amplifies the reaction rate by maximizing interaction opportunities, accelerating the conversion of charcoal and oxygen into products.

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Answer:

olivine i think

Explanation:

Answer:

OB. Hydroelectricity

Explanation:

Because hydroelectricity is the process where electricity is generated by a motor being rotated by the force or current of water, and according to the laws of the water cycle, water is goes back to where it once was which leads us to conclude that hydroelectricity is a renewable source of energy.

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The solution has a molarity of 0.0924 M.

The number of moles of solute per litre of solution is known as molarity.. For instance, water is both the solution and the solute when table salt is dissolved in it. Each mole of sodium chloride weighs 58.44 grammes. 58.44 grammes of sodium chloride are dissolved in one litre of water to produce one molar solution, or 1M.

Moles of solute per litre of solution is known as molarity (M).

Given: moles of NH3 = 0.355, volume of solution = 3.84 L

Molarity = 0.355 moles / 3.84 L = 0.0924 M

Therefore, the molarity of the solution is 0.0924 M.

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Answer:

3.2 × 10³ J

Explanation:

Step 1: Given data

Step 2: Calculate the temperature change (ΔT)

ΔT = 1064 °C - 75 °C = 989 °C

Step 3: Calculate the energy required (Q)

We will use the following expression.

Q = Cp × m × ΔT

Q = 0.129 J/g.°C × 25 g × 989 °C

Q = 3.2 × 10³ J

Answer:

Batteries hold chemical energy

Explanation:

The battery acid in a battery leads to chemical energy.

Answer:

83

Explanation:

3X + 2Y → 5C + 4D

2 moles of Y will produce 5 moles of C

33.0 moles of Y will produce: 33.0 x 5/2 = 82.5 or 83 moles of C

Answer:

5 atoms

Explanation:

i hope that helps

Answer:

please also share the excerpt

Explanation:

Thank you

Answer:

correct option is (a)

The solution would be using this: C6H5COOH = H+ + C6H5COO Ka = 6.5 x 10^-5 = (H+)(C6H5COO-) over

(C6H5COOH)

Let X = moles per liter (H+) and also = moles per liter (C6H5COO-)

Ka = 6.5 x 10^-5 = (X)(X) over .350 molar = acid solution 6.5 x 10^-5 = X^2 over .350

X^2 = 6.5 x 10^-5 times .350 which = 2.275 x 10^-5

x = V2.275 x 10^-5

X = 1.5083 x 10^-5 moles per liter H+

pH = -log(H+) = -log 1.5083 x 10^-5 which

= 4.6215

The pH of a 0.350 M aqueous benzoic acid solution is 4.64. The correct option is a).

In chemistry, the pH scale is used to define the acidity or basicity of an aqueous solution. Historically, pH stood for "potential of hydrogen."

The solution would be using this: C₆H₅COOH = H+ + C₆H₅COO Ka = 6.5 x 10⁻⁵ = (H+)(C₆H₅COO-) over

(C₆H₅COOH)

Let X = moles per liter (H+) and also = moles per liter (C6H5COO-)

Ka = 6.5 x 10⁻⁵ = (X)(X) over .350 molar = acid solution 6.5 x 10⁻⁵= X² over .350

X² = 6.5 x 10⁻⁵ times .350 which = 2.275 x 10⁻⁵

x = V2.275 x 10⁻⁵

X = 1.5083 x 10⁻⁵ moles per liter H+

pH = -log(H+) = -log 1.5083 x 10⁻⁵  = 4.6215

Therefore, the pH is 4.6215. The correct option is a). round to 4.64.

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Answer:

The open system evaporates the solvent in the solution

Explanation:

An open system is a system in which exchange of materials and energy can occur. If a TLC set up is left open, then the set up constitutes an open system.

During TLC, the sample is dotted on the plate and inserted into a suitable solvent. The solvent moves up the plate and achieves the required separation of the mixture.

Most of these solvents used used TLC are volatile organic compounds. Therefore, if the TLC set up is left open, the solvent will evaporate leading to poor results after running the TLC experiment.