2-methylbutan-1-ol is heated with an excess of

concentrated sulphuric acid (H2SO4) in order to cause an

elimination reaction.

i) Write an overall equation (using condensed formula) for this

elimination reaction and name the reactants and products as

part of the equation

ii) Draw the product of this reaction in displayed formula.

iii) Provide a ‘curly arrow’ mechanism (in displayed formula) for

the formation of the product supported with an explanation.​

Taking into account the definition of pH and pOH, the OH- ion concentration in the solution is 1×10⁻⁶ M and the solution is basic.

The pH is a coefficient that indicates the degree of acidity or basicity of an aqueous solution and indicates the amount of hydrogen ions present in a solution or substance.

The pH is defined as:

pH= - log [H⁺]= - log [H₃O⁺]

Neutral pH is 7: if the number is higher, the solution is basic, and if it is lower, it is acidic.

Similarly, pOH indicates the amount of hydroxyl ions and is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

The relationship between pH and pOH  can be established as:

pOH + pH= 14

Being [H⁺]=1×10⁻⁸ M, the pH is calculated as:

pH= - log (1×10⁻⁸ M)

Solving:

pH= 8

The solution is basic because the pH is greater than 7.

Being pH= 8, pOH is calculated as:

pOH + 8= 14

pOH= 14 - 8

pOH= 6

Replacing in the definition of pOH the concentration of OH⁻ ions is obtained:

- log [OH⁻]= 6

Solving:

[OH⁻]= 10⁻⁶

[OH⁻]=1×10⁻⁶ M

In summary, the [OH⁻] is 1×10⁻⁶ M.

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Answer: NaCl

Explanation:

Table salt is made up of 1 atom of sodium (Na) and 1 atom of chlorine (Cl)

A useful scientific name must have two characteristics and these include the following:

In Science, a scientific name is sometimes referred to as binomial nomenclature, binominal nomenclature, or binary nomenclature and it can be defined as a formal system that is typically used for naming species of living organisms, especially by giving each a name that is composed of two (2) main parts i.e Genus and Species.

In Science, a species simply refers to a biological classification of related organisms that look alike or have the same (similar) characteristics and they are capable of mating (breeding) with one another in a cycle (different seasons).

In this context, we can reasonably infer and logically deduce that both Genus and Species are the two (2) main characteristics which all useful scientific names must have.

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Matter refers to any substance that has mass and occupies space (volume). The states of matter are as follows;

Plasma is the state of matter consisting of partially ionized gas and electrons. A gas is an intermediate state between liquid and plasma that can be contained only if it is fully surrounded by a solid.

The volume of a gas is the same as the container that holds it.

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Answer:

the graph shows that f(x)=[1/3]×

The change that has been described is shown as L.

We know that the term change of state has to do with the process by which there is an alteration in the physical state that the material is found to be in. In this case, we have a situation in which at the beginning,  the atoms are close together but are able to slide pass one another.

We know that the former state that has been described here is the solid state and the liquid state is that in which the arrow may be pointing towards in the diagram as shown.

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Missing parts;

The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance gain energy during a change of state. Before the change, the atoms are close together and cannot slide past one another. After the change, the substance can fill its container.

Which arrow represents the change of state described above?

L

M

N

O

Atom A could be strontium (Sr), oxygen (O), or aluminum (Al).

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Answer:

They would run 12.4274 miles.

Answer:

Explanation:

12.4274 miles.

the answer is probably rounded, so 12.43 or 12.4

In the second experiment, bacteria are grown in a culture medium depleted of Na+. the culture medium is the gel or the liquid contains the nutrients and it is used to grow the bacteria.

In the experiment, The bacteria is grown in the culture medium. we conclude that , in the presence of the substrate S, the decarboxylation results in the P1 - dependent export of the Na⁺ outside the bacteria. The Na⁺ re-enters via P2 and this transport is coupled with the H⁺ exports leading  to the formation of the proton motive force/ Na⁺ gradient.

The extracellular H⁺ reenters the cell via P3 leading to the ATP synthesis.

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The second experiment involves the growth of bacteria in a medium that lacks Na+. The liquid or gel used as the culture medium includes nutrients and is used to cultivate microorganisms.

The bacteria is cultivated in the experiment's culture medium. We come to the conclusion that the decarboxylation causes the Na+ to be exported from the bacteria in a P1-dependent manner when the substrate S is present. The proton motive force/Na+ gradient is created when the Na+ re-enters through P2 and is transported together with the H+ exports. Through P3, extracellular H+ returns to the cell and triggers the creation of ATP.

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The substance that changed phase would have less heat capacity than the other thus the bonds in it were broken more easily.

We have to note that the phase change has to do with the conversion of a liquid to a solid or the conversion of a liquid to a gas. A phase is essentially a  given state of matter.

In the case of the question that we have here, we are told that the two substances that are tested are liquids. It is now clear that the substance that changed phase would have a lower heat capacity.

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When you put it into a table and separate the variables, you'll get 0.80 molecules.

Answer: KCl

That is the correct answer on pearson

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the given statement is true.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

Beryllium would have a strong affinity to bond with sulfur because Beryllium and sulfur could both become stable by the transfer of ONE electron from Beryllium to sulfur.

Therefore, the given statement is true.

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Answer:
5 Pa

Explanation:

To solve this problem, we first need to convert the volume of the gas in milliliters to liters. There are 1000 milliliters in a liter, so we can multiply the volume of the gas in milliliters by 1/1000 to get its volume in liters. This gives us a volume of 0.34 liters.

The pressure of a gas is equal to the force it exerts per unit area. The unit of pressure is the pascal (Pa). In this case, the force of the gas is 180N and the area over which it is exerting this force is 36m², so the pressure of the gas is 180N/36m² = 5 Pa.

If we change the volume of the gas to 540 liters, the pressure will not change. This is because the pressure of a gas is dependent on the force it exerts and the area over which it is exerted, and not on the volume of the gas itself. The pressure of the gas will remain 5 Pa regardless of its volume.

If you leave your hand on a lightbulb while it is turned on, your hand will eventually get hot because heat will be transferred from the bulb to your hand by conduction.

Conduction is a heat transfer process through a solid body. In other words, it is a process whereby heat is transmitted through the movement of particles that are in contact with one another.

When a lightbulb is turned on, electrical energy is converted into light energy and this lights up the bulb. Some of the energy of light is also converted to heat and this makes the lightbulb heat up.

Thus, when you leave your hand on a lightbulb while it is on, heat will be transferred to it by direct contact, a method known as conduction.

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The compound that could be the isomer of C₂H₆O₂ is CHO. Option A

We know that an isomer is the kind of compound that has the same molecular formula but does not have the same structural formula. The implication of this is that we would have to compounds that just have the same kind of the atoms but the arrangement of the atoms would not be the same.

We can then say that the isomers that we are talking about in the context of the question that we are trying to deal with here is the kind of isomers that do not have the same way in which the atoms of the elements that make up the compounds have been arranged in the compounds that are under study.

Thus, when we look up the compounds, we can see that the only empirical formula that is close to that of the compound that we have in the question as shown is the compound with the empirical formula CHO.

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Missing parts;

Which of the following choices could be an isomer of a compound with an empirical formula of C₄H₁₀O₃?

CHO

CH₂O

C₈H₂₀O₆

C₅H₁₁O₄

Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid, so, 13.26 ml of 4.75 M H₂SO₄ (aq) are needed to react completely with 16.1 g BaO₂ (s).

In the reaction, there is 1 mole of BaO₂(s) that reacts with 1 mole of H₂SO₄(aq), so the moles of BaO₂ are 0.063 moles because the mass of this is 16.1 and the molar mass is 253.34 g/mol. So here, the same mole that is 0.063 is for H₂SO₄, and the volume of H₂SO₄ is 13.26 ml, which is gotten from the moles of solute/molarity that are 0.063 moles/ 4.75 M.

Hence, hydrogen  peroxide can be prepared by the reaction of barium peroxide with sulfuric acid, so, 13.26 ml of 4.75 M H₂SO₄ (aq) are needed to react completely with 16.1 g BaO₂ (s).

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The structures of the compounds have been found in the image attached.

We know that the structure of a molecule would have to do with the way and the manner in which a compound can be written in on paper. It is a kind of a visible representation of the compound.

As such all of the atoms in the compound as well as the groups that we find in the molecule can well be represented in the structure of the compound when it has been shown as we have in the images that are attached to the answer below.

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The quotient of the given mathematical problem is equal to 2. Therefore, option A is correct.

In arithmetic, a quotient can be described as a quantity produced by the division of two numbers. The quotient has used throughout mathematics and is referred to as the integer part of a division or as a fraction or a ratio.

A rational number is the quotient of two integers when the denominator is non-zero.

A real number r is rational, it can be expressed as a quotient of two integers with a non-zero denominator.

Given a real number r, r is rational if and only if there exist integers a and b such that[tex]{\displaystyle r={\tfrac {a}{b}}}, {\displaystyle b\neq 0}[/tex]

Given, the division of √100/√25

We can write the [tex]\sqrt{100} =\sqrt{25\times 4} =\sqrt{25} \sqrt{4}[/tex]

Now, [tex]\displaystyle \frac{\sqrt{100}}{\sqrt{25}}= \frac {\sqrt{25}\times \sqrt{4} }{ \sqrt{25}} =\sqrt{4} =2[/tex]

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Non metals in the solid phase are brittle and lack metallic luster. Option 4

Let us note that the metals has to do with the elements that occur at the left hand side of the periodic table and most of them are solid. They are known to be electro positive and a lot of them are sonorous when struck as well as give out a characteristic luster. This is why the metals can be used in the making of a lot of the acoustic instruments that are used ion the playing of music as well as in the production of jewelry.

In the case of the non metals only a few of the elements are found to be solid and a lot of them can be found to be either liquid or gas and they are also known to have a low temperature range thus the boiling and the melting points of the elements can be seen to be quite and very low from the periodic table of the element.

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Missing parts;

Which characteristics describe most nonmetals in the solid phase?

1

They are malleable and have metallic luster.

2

They are malleable and lack metallic luster.

3

They are brittle and have metallic luster.

4

They are brittle and lack metallic luster.

Answer:

H2O

Explanation:

H2O melts at 0 Celsius while everything else melts at a lower degree temp

The statement "Superficial zone chondrocytes can get compacted under physiological loading: a multiscale finite element analysis" is true.

Superficial zone chondrocytes are the most exposed to mechanical loading and are therefore at risk of being compacted under physiological loading. A multiscale finite element analysis can be used to model and predict the mechanical behavior of cartilage under physiological loading, allowing for a better understanding of the factors that affect its mechanical properties.

This means that chondrocytes in the superficial zone of cartilage are at risk of being compacted under the physiological loading that it experiences in everyday life. A multiscale finite element analysis can be used to model and predict the mechanical behavior of cartilage under physiological loading, allowing for a better understanding of the factors that affect its mechanical properties.

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When a solute is dissolved in a solvent, the resulting solution will have a higher boiling point than the pure solvent. The extent to which the boiling point is increased is dependent on the concentration of the solute and the type of solute.

In general, non-volatile solutes that have high molecular weights and strong intermolecular forces will cause a greater increase in the boiling point of a solvent than solutes that are volatile or have low molecular weights and weak intermolecular forces.

With this in mind, of the three solutes you listed, calcium chloride (CaCl₂) would cause the greatest increase in the boiling point of water. Calcium chloride is a non-volatile solute with a high molecular weight and strong ionic bonds, which contribute to its ability to increase the boiling point of water.

In contrast, sodium iodide (NaI) is a volatile solute with low molecular weight and relatively weak intermolecular forces, so it would cause a relatively small increase in the boiling point of water.

Potassium chloride (KCl) is also a non-volatile solute with a high molecular weight and strong ionic bonds. However, it would still cause a slightly smaller increase in the boiling point of water than calcium chloride because calcium chloride has a higher molecular weight and stronger intermolecular forces.

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The absolute configuration of the highlighted compound is L. The IUPAC name of the given compound is 2,3 dibromo pentane.

Organic compounds are named based on certain rules by IUPAC. The chain name is based on the number of carbon atoms in the longest chain of the molecules.

The configuration in  which the OH groups of the second carbon comes down is called D- configuration and if it is above the plane it is called L- configuration.

The given compound is in L configuration since the OH group of the second carbon is above the plane.

The IUPAC name of the given compound is 2,3 dibromo pentane. It contains 5 carbons in the longest chain and substituent at the second and third carbon.

The Fischer projection of the given compound is shown as below .

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The absolute configuration of given compound is S configuration. Absolute configuration is the stereochemical description of both the spatial arrangement.

Absolute configuration is the stereochemical description of both the spatial arrangement of the atoms inside a chiral molecular unit (or group). Since carbon is linked to four distinct substituents in organic compounds, absolute configuration is frequently significant.

The arrow should resemble a clock face since the fourth primary concern atom is positioned at the back. It can be an R-enantiomer if it is moving clockwise and an S-enantiomer if it is moving counterclockwise. The absolute configuration of given compound is S configuration.

Therefore, the absolute configuration of given compound is S configuration.

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Last year the US produced 1.84 X 1010 lbs of phosphoric acid to be used in the manufacture of fertilizer. The average cost of the acid is $318/ton. The total value of the phosphoric acid produced is $ 2925600000.

The term average cost is defined as the ratio of total cost to the number of units of a good produced. It is mathematically expressed as AC = TC/Q.

The average cost of the acid = $318/ton

18.4 × 10⁹ lbs = ( 18.4 × 10⁹ ) / 2000 tons  

Cost = [( 18.4 × 10⁹ ) / 2000 ] × 318  

Cost = $ 2925600000

Thus, The average cost of the acid is $318/ton. The total value of the phosphoric acid produced is $ 2925600000.

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The carbon in Compound 3 matches the carbon in Compound 4a with an asterisk is C2. Therefore, option B is correct.

Alpha-cadinol is a cadinane sesquiterpenoid that has a hydroxy group at position 10. It acts as a fungicide and a plant metabolite.

This compound is synthesized in two main steps. In the first step, compound 1 undergoes nucleophilic addition to compound 2. Then, the product compound 3 formed will undergo intramolecular aldol condensation. This cyclic product further undergoes dehydration and forms two isomers compound 4a and compound 4b. The compound 4a only is converted to alpha-cadinol.

In the conversion of compound 3 to compound 4a, carbon 2 containing acidic hydrogen will deprotonate and attack the carbonyl of the 5-carbon ring. Therefore, the asterisk is carbon 2.

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The key to predicting precipitation reactions is understanding the solubility rules of the reactants.

Solubility rules determine which ions are soluble in water and which ions form an insoluble precipitate when combined in aqueous solution. These rules can be used to predict whether a reaction will result in a precipitate or not.

Precipitation reactions are a common type of chemical reaction which involve two reactants combining together in an aqueous solution to form an insoluble precipitate. In order to predict whether a reaction will form a precipitate or not, one must understand the solubility rules of the reactants. This essay will discuss what solubility rules are, how they are used to predict precipitation reactions, and how to apply them in practice.

Solubility rules are a set of guidelines which determine which ions are soluble in water and which ions form an insoluble precipitate when combined in aqueous solution. Generally, two categories of ions are considered: those that are soluble in water, and those that are insoluble.

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X and Z are the same compounds while W and Y are geometric isomers.

We have to note that the term isomers has to do with the compounds that have the same molecular formula but not the same structural formula. The implication of these is that the number of atoms of each of the elements that are in the isomers is the same but the atom to atom connectivity of the atoms in the compounds would differ.

Having this in mind, we should give a good look to the structures that we have in the question that we have. We need to look closely to see if there is any kind of relationship between the molecules that have been shown.

We can already see that there are some of the complex ions that we can be able to regard as the geometric isomers of each other based on the appearance of the structures.

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Answer:

k

Explanation:

ionization energy is the minimum energy required to remove an electron from the outermost energy level of an atom

so the electrons in beryllium are closer to the nucleus therefore more energy is required to loose the electrons because the two electrons are strongly held by the nucleus

[tex]Ag^+[/tex] would contain 46 electrons and 47 protons.

[tex]S^{2-[/tex] would contain 18 electrons and 16 protons.

The neutral ions of atoms have an equal number of electrons and protons. Since electrons are negatively charged and protons are positively charged, the number of negative and positive charges balances each other.

The atomic number of atoms is the number of protons in the atoms. Thus, Ag has a proton and electron number of 47 while S has 16 for each.

In order to form [tex]Ag^+[/tex], Ag will lose an electron. Thus the proton number remains at 47 while the electron number has been reduced to 46.

In order to form [tex]S^{2-[/tex], S will gain 2 electrons. Thus, the proton number remains at 16 while the electron number increases to 18.

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The tile's suggested answers include amine, alcohol, carboxyl group, and halocarbon.

Hydrocarbons are organic substances comprised of hydrogen and carbon, and include petroleum, methane gas, and coal. Alkanes are both a highly combustible chemical and the main source of fuel in the planet. Its uses include diesel, jet fuel, propane, petrol, and petroleum, to name a few.

The most fundamental category of organic compounds is referred to as a hydrocarbon. As their name implies, they are exclusively made up of the elements hydrogen and carbon. Atoms surround one or more core carbon atoms in hydrocarbon molecules, which are branching or chain-like in shape.

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The complete question is-

Drag each tile to the correct image. Match each hydrocarbon class to its structure. carboxylic acid amine halocarbon alcohol.