JOHN NEWLANDS REASON OF FAILURE

Answers

Answer 1

Answer: The law was applicable only to calcium. It could not include other elements beyond calcium.  With the discovery of rare gases, it was the ninth element and not the eighth element having similar chemical properties.

Explanation:

YOUR WELCOME


Related Questions

Predict the product(s) obtained when benzoquinone is treated with excess butadiene:

Answers

When benzoquinone is treated with excess butadiene, the products obtained are 2,5-dimethylcyclohexadiene-1,4-dione and cyclohexene.

What is benzoquinone?

Benzoquinone is also known as 1,4-benzoquinone or cyclohexa-2,5-diene-1,4-dione, is a colorless organic compound. The presence of two carbonyl groups in its structure provides it its characteristic quinone chemistry.

Butadiene, also known as 1,3-butadiene, is a conjugated diene. The reaction between benzoquinone and butadiene is called a Diels-Alder reaction.

The Diels-Alder reaction is a conjugate addition reaction that joins a diene and a dienophile to create a new six-membered ring. The most important characteristic of the Diels-Alder reaction is its stereospecificity. This reaction occurs between a cyclic diene and an alkene or alkyne dienophile.

The products obtained when benzoquinone is treated with excess butadiene are:2,5-dimethylcyclohexadiene-1,4-dioneCyclohexeneThe reaction proceeds with the dienophile (benzoquinone) being attacked by the diene (butadiene) in the Diels-Alder reaction to produce a cyclic adduct. The product is 2,5-dimethylcyclohexadiene-1,4-dione. Cyclohexene is formed as a byproduct of the reaction.

Learn more about Benzoquinone here:

https://brainly.com/question/15014857

#SPJ11

how should you write the volume dispensed by a 5 ml volumetric pipet?

Answers

When writing the volume dispensed by a 5 ml volumetric pipet, it should be written as 5.00 mL.

A volumetric pipet is a laboratory instrument utilized to dispense very accurate and precise volumes of liquid. It is commonly used in analytical chemistry to make up solutions or to dilute stock solutions. Volumetric pipettes, also known as transfer pipettes or bulb pipettes, are single-volume liquid measuring instruments. They are meant to deliver a precise volume of liquid at a fixed temperature when the tip is slightly below the liquid surface.

It is important to write the volume with two decimal places to indicate the precision of the pipette.

Volumetric pipettes are utilized to prepare and dilute solutions. They are made of glass, with a round or conical end. They are intended to provide a precise volume of liquid, such as a certain number of milliliters or milligrams of a substance. Because of its accuracy, a volumetric pipet is used to create a standard solution.

For more such questions on volumetric pipet, click on:

https://brainly.com/question/28945018

#SPJ11

knowing that solid sodium acetate is soluble and that acetic acid dissociates into hydrogen ions and acetate ions, why will sodium acetate influence the equilibrium of acetic acid dissociation?

Answers

As sodium acetate is added to the solution, the sodium ions (Na+) will replace the hydrogen ions (H+) in the equation. This causes a shift in the equilibrium as the number of hydrogen ions (H+) decreases, while the number of acetate ions (CH3COO-) increases.

Sodium acetate is an ionic compound composed of Na⁺ and CH₃COO⁻ ions.

It dissociates in water to create these ions, which are then available to affect the dissociation of acetic acid.

The equilibrium of acetic acid dissociation is influenced by the addition of sodium acetate.

Acid dissociation equilibria are influenced by salt addition (usually sodium salts), particularly when the acid is weak.

This is due to the fact that the anion of the salt reacts with hydrogen ions from the acid's dissociation.

This decreases the concentration of hydrogen ions in the solution, causing the reaction to shift towards more dissociation.

Learn more about acid dissociation constant here:

https://brainly.com/question/3006391

#SPJ11

In the illustration, which solute will dissolve first? A) solute in tank B will dissolve first B) solute in tanks A and B will dissolve at equal rates C) solute in tank A will dissolve first

Answers

A) The solute in tank B will dissolve first, is the key response.Temperature, pressure, and concentration are only a few examples of the variables that affect a solute's solubility in a solvent. As the water in both tanks A and B is originally pure.

in this instance the solute in tank B will dissolve first due to its larger concentration than in tank A. The concentration gradient between the solute and the water narrows as the solute in tank B dissolves and diffuses into the surrounding water, slowing the rate of dissolution. The solute in tank A will also eventually dissolve, but because of its lower initial concentration, it will do so more gradually.I am unable to tell which solute will dissolve first because the relevant illustration is not given. However, a number of variables, including temperature, pressure, and the chemical makeup of the solute and solvent, affect how soluble a solute is in a solvent. The solute that is more soluble in the given solvent will often dissolve first. It is impossible to predict which solute will dissolve first without more details or context.

learn more about solute in tank  here:

https://brainly.com/question/9589556

#SPJ4

when flour is mixed with water, an elastic network forms as gliadin and glutenin combine, and this is known as _____. it is both elastic and plastic and can expand with the inner pressure of gases (air, steam, and co2), allowing the bread to expand with the action of yeast.

Answers

When flour is mixed with water, an elastic network forms as gliadin and glutenin combine, and this is known as gluten. It is both elastic and plastic and can expand with the inner pressure of gases (air, steam, and co2), allowing the bread to expand with the action of yeast.

Gluten is a mixture of two proteins, gliadin and glutenin, which gives wheat dough its elastic and viscoelastic properties. When flour is mixed with water, the gluten forms an elastic network that can expand with the inner pressure of gases (air, steam, and CO2). This allows bread to rise with the action of yeast, making it light and fluffy. Gluten is also responsible for the chewy texture of bread and other baked goods that use wheat flour.

Gluten is found in wheat, barley, and rye. People with celiac disease or gluten intolerance are unable to digest gluten, and consuming it can cause a range of symptoms, including diarrhea, bloating, and abdominal pain. As a result, they must follow a gluten-free diet. Gluten-free flours made from rice, corn, and other grains can be used as a substitute for wheat flour in many recipes.

Learn more about celiac disease here: https://brainly.com/question/16779711

#SPJ11

what is the function of the electron transport chain in cellular respiration ?

Answers

The electron transport chain (ETC) is an essential part of cellular respiration, which is a series of molecules that transfer electrons from one molecule to another used by cells to convert nutrients into energy.

This starts with the oxidation of molecules such as glucose, which releases electrons that are then transferred to a series of electron carriers in the ETC. The electron carriers are molecules that hold the electrons and can transfer them to other molecules which is known as redox reactions. As the electrons move through the ETC, they release energy which is used to form a proton gradient that is then used to drive the synthesis of ATP, the energy currency of the cell. The ETC is an essential part of cellular respiration as it is the process responsible for generating the energy necessary for cells to function.

To learn more about electron click here https://brainly.com/question/28977387

#SPJ4

When the following two solutions are mixed:
K2CO3(aq)+Fe(NO3)3(aq)
the mixture contains the ions listed below. Sort these species into spectator ions and ions that react.
Drag the appropriate items to their respective bins.
NO3-)aq), Fe3+ , CO3 2-, K+
Part B
What is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? Assume that the contribution of protons from H2SO4 is near 100 %.
Ba(OH)2(aq)+H2SO4(aq)?

Answers

The net ionic equation for the reaction between [tex]Ba(OH)_2(aq) and H_2SO_^4 (aq)  is :2Ba^2^+(aq) + SO_4^2^-(aq) + 2H^+(aq) ⇒ 2Ba^2^+(aq) + 2H_2O[/tex]

When the following two solutions are mixed:

[tex]K_2CO_3(aq) + Fe(NO_3)_3(aq)[/tex], the mixture contains the following ions:

[tex]NO_3- (aq), Fe^3+, CO_3^ 2-, K^+[/tex]. The spectator ions are NO3- (aq) and K+, and the ions that react are Fe3+ and CO3 2-.

Hence , The correct net ionic equation, including all coefficients, charges, and phases, for the reactants [tex]Ba(OH)_2(aq) + H_2SO_4(aq) [/tex] is 2Ba^2^+(aq) + SO_4^2^-(aq) + 2H^+(aq) ⇒ 2Ba^2^+(aq) + 2H_2O[/tex] .
To know more about Ionic equation refer here :

https://brainly.com/question/11510759

#SPJ11

Whats the difference between zinc amino acid chelate with any other type of zincs?​

Answers

Answer:

chelated zinc is more easily absorbed than zinc on it's own.

which scientist conducted the gold foil experiment and discovered that the atom has a positively charged nucleus?

Answers

Ernest Rutherford, a New Zealand physicist, conducted the gold foil experiment and discovered that the atom has a positively charged nucleus.

In 1911, he conducted an experiment in which he fired alpha particles at a thin sheet of gold foil. The majority of the particles went straight through the gold foil, but a small percentage of the particles bounced back. He discovered that the bouncing back was caused by a small, positively charged nucleus at the center of the atom. Rutherford's experiment was crucial to our understanding of the structure of the atom. Prior to his experiment, the prevailing model of the atom was that it was a solid, indivisible sphere.

However, Rutherford's experiment showed that the atom was mostly empty space, with a positively charged nucleus at its center. This discovery paved the way for future research into atomic structure and helped to lay the foundation for the development of nuclear physics.

For more questions on Ernest Rutherford

https://brainly.com/question/28809146

#SPJ11

Use these two constants for the question that follows:


e = 1.6 × 10^−19 C
k = 8.99 × 10^9 N m^2/C^2

A positive charge and a negative charge are 10^−15 m away from each other. Using Coulomb's law, which of the following is the electrical force between these two particles?
230 N
−230 N
120 N
−120 N

Answers

Answer: -230 N

Explanation:

The electrical force between two point charges q1 and q2 separated by a distance r is given by Coulomb's law:

F = k * (q1 * q2) / r^2

where k is the Coulomb constant, q1 and q2 are the magnitudes of the charges, and r is the distance between them.

In this case, we have a positive charge and a negative charge, which means that q1 and q2 have opposite signs. Let's assume that the positive charge has a magnitude of q and the negative charge has a magnitude of -q. Then, the electrical force between them can be calculated as:

F = k * (q * (-q)) / r^2 = -k * q^2 / r^2

Substituting the given values of e and k, we get:

F = - (8.99 × 10^9 N m^2/C^2) * (1.6 × 10^-19 C)^2 / (10^-15 m)^2 ≈ -230 N

Note that the negative sign indicates that the force is attractive, which is expected for opposite charges. Therefore, the correct answer is:

-230 N.

students conducting research observe the rate of an enzyme-catalyzed reaction under various conditions with a fixed amount of enzyme in each sample. when will increasing the substrate concentration likely result in the greatest increase in the reaction rate?

Answers

Increasing the substrate concentration will likely result in the greatest increase in the reaction rate when the substrate concentration is lower than the concentration of the enzyme.

The concentration of the substrate affects the rate of reaction since there is a direct correlation between the number of enzyme-substrate complexes that are formed and the rate of reaction.

When there is more substrate, more enzyme-substrate complexes can form, resulting in an increase in the rate of reaction.

So, it is highly likely that when the substrate concentration is low, increasing the substrate concentration will result in the greatest increase in the reaction rate.

However, when the substrate concentration is already high, the reaction rate may not continue to increase as a result of increasing the substrate concentration.

Learn more about substrate concentration here:

https://brainly.com/question/22428921

#SPJ11

The idea of __________ asserts that some evolutionary changes may not even involve intermediate forms.
punctuated equilibrium

Answers

The idea of punctuated equilibrium asserts that some evolutionary changes may not even involve intermediate forms.

What is punctuated equilibrium?

The idea of punctuated equilibrium is a theory in evolutionary biology that proposes that most evolutionary changes occur relatively rapidly, with long periods of stability punctuated by rare instances of rapid evolutionary change.

The theory was first introduced by Niles Eldredge and Stephen Jay Gould in 1972 as a challenge to the traditional Darwinian theory of gradualism, which posits that evolution proceeds slowly and steadily over long periods of time.

According to punctuated equilibrium, some evolutionary changes may not even involve intermediate forms.

There are several examples of punctuated equilibrium in the fossil record, including the Cambrian explosion, which saw the sudden appearance of most major animal phyla in a relatively short period of time, and the rapid diversification of mammals following the extinction of the dinosaurs at the end of the Cretaceous period.

Learn more about Punctuated equilibrium here:

brainly.com/question/4430933

#SPJ11

Why do we use anhydrous diethyl ether? Choose the right answer.

A. Since Grignard reagents react with O2 to form hydroperoxides, vapors from highly volatile diethyl ether solvent prevents O2 from reaching the reaction mixture.

B. Ether molecules coordinate with grignard Reagent

C. Ether helps stabilize the Grignard reagent

Answers

We use anhydrous diethyl ether since Grignard reagents react with O2 to form hydroperoxides, vapors from highly volatile diethyl ether solvent prevents O2 from reaching the reaction mixture. Option A is the correct answer.

Anhydrous diethyl ether is commonly used as a solvent in Grignard reactions. The main reason for using anhydrous diethyl ether is to prevent the Grignard reagent from reacting with moisture or oxygen in the air, which would lead to unwanted side reactions or a reduction in the yield of the desired product.

Diethyl ether is highly volatile, and its vapors help to exclude oxygen from the reaction mixture, preventing the formation of hydroperoxides. Additionally, diethyl ether helps to dissolve the reactants and stabilize the Grignard reagent, making it more reactive towards the substrate. Hence option A is correct.

To know more about diethyl ether, here

brainly.com/question/28623053

#SPJ4

In the given figure, red litmus paper is inserted in solution and colour remains unchanged then what may be contained in vessel among acid, base and salt solution? How can it be further tested to confirm it?​

Answers

Answer:

Explanation: If the red litmus paper is inserted into the solution and the color remains unchanged, it indicates that the solution is likely a neutral solution or a solution with a pH close to 7. This means that it may contain either water or a salt solution.

To further confirm whether the solution contains a salt or water, we can perform a simple test using blue litmus paper. We can dip a blue litmus paper into the solution, and if it turns red, it indicates that the solution is acidic. If it remains blue, it indicates that the solution is basic.

If the blue litmus paper also does not change its color, it means that the solution is neutral or has a pH close to 7, which supports the possibility that the solution may contain either water or a salt solution.

To further test whether the solution contains a salt or not, we can perform a flame test. We can take a small amount of the solution and place it on a platinum wire loop and hold it in a Bunsen burner flame. If the flame produces a characteristic color, it indicates that the solution contains a salt. The characteristic color of the flame will depend on the metal ion present in the salt.

Overall, based on the initial test with the red litmus paper, the solution is likely neutral or close to neutral, and additional tests with blue litmus paper and flame test can be used to confirm whether the solution contains a salt or water.

Explain the significance of the line spectrum observed for the hydrogen atom by Neil bohr. What were the inadequacies of the bohr model? calculate the energy required to excite a hydrogen electron from level n=1 to n=3

Answers

The line spectrum observed for the hydrogen atom by Niels Bohr is significant because it provided evidence for the quantization of energy levels in atoms.

Bohr's model proposed that electrons in atoms occupy specific energy levels or orbits around the nucleus, and that they can only absorb or emit energy in discrete amounts as they transition between these energy levels. When an electron in hydrogen is excited to a higher energy level by absorbing energy, it eventually returns to its original energy level by emitting energy in the form of light, which is observed as the line spectrum.

However, the Bohr model had some inadequacies. It couldn't explain the spectral lines of atoms other than hydrogen, and it couldn't account for the fine structure of spectral lines due to electron spin. Also, the model violated the Heisenberg uncertainty principle, which states that it is impossible to simultaneously determine the exact position and momentum of an electron.

To calculate the energy required to excite a hydrogen electron from level n=1 to n=3, we can use the formula:

ΔE = E3 - E1 = (-13.6 eV/n²) [(1/3²) - (1/1²)]

where E1 and E3 are the energy levels corresponding to n=1 and n=3, respectively. Plugging in the values gives:

ΔE = (-13.6 eV/n²) [(1/3²) - (1/1²)] = (-13.6 eV) [(1/9) - 1] = 10.2 eV

Therefore, the energy required to excite a hydrogen electron from level n=1 to n=3 is 10.2 eV.

To know more about quantization click here:

brainly.com/question/17018137

#SPJ4

Other Questions
the product of 2 rational numbers is 16/3.If one of the rational number is -26/3,find the other rational number what is the term used to describe the ideal ph for enzyme function? -51+((-5+(-4)) all calculation Which of the following dictated that the same 10-year penalty be imposed for the possession of 50 grams of crack cocaine as for the possession of 5,000 grams of powder cocaine in the 1980sThe Federal Anti-Drug Abuse Act Which of the following commands displays information about the account issuing the command? (Choose all that apply.)A. whoamiB. who am iC. cat $HOME/.bashrcD. cat $HOME/.profileE. id Relationship between Hinduism and Buddhism ? Throughout much of the 20th century, sociologists who studied minorities, race, and ethnicity assumed which of the following?a.The ultimate destiny of most minorities was assimilation.b.Migrant groups would resist assimilation.c.Migrant groups would want to retain their unique traditions and beliefs.d.The ultimate destiny of the United States was cultural pluralism. In Who Burns For the Perfection of Paper, what does it show about Espada that he connects working in a legal pad factory with being a law student? what the deffinition of structural formula? explain how you can avoid injury to bones and joints. Find the distance from Link to the Octorok so Link can attack The Martins' household income is $123,000 per year. However, this family estimates that they have $45,000 available to spend on nonessentials such as vacations and entertainment. The $45,000 represents the Martins' _____. Gross Margin Net Income Cost of Goods Sold. ______(absorption, variable) costing is acceptable for external reporting under U.S. GAAP. Absorption. 1.2 Summarise the thesis statement of the text Nature Returns to the cities. Provide THREE (3) examples from the text on how the author develops his thesis statement. (10 marks the point at which average total cost is minimized is known as marginal cost (true or false) How are the policies impacting the health of the Chesapeake Bay? (Use http://www.cbf.org/about-the-bay/state-of-the-bay to analyze the Bay Report Card to evaluate the current policies.)Environmental Protection Agency (EPA)-U.S. Forest Service (FS)-National Park Service (NPS)-U.S. Fish and Wildlife Service (FWS)-U.S. Geological Survey (USGS)-National Oceanic and Atmospheric Administration (NOAA)-Natural Resources Conservation Service (NRCS)-Bureau of Land Management (BLM)-Office of Environmental Management (OEM)- the open area or central space in the gi tract is called the The beat frequency produced when a 240 hertz tuning fork and a 246 hertz tuning fork are sounded together isa) 245 hertzb) 240 hertzc) 12 hertzd) 6 hertze) none of the above when determining the batch size, which consideration is the least important? a. achieving economies by grouping together large numbers of transactions b. providing control over the transaction process c. complying with legal mandates What is marginal product defined as?