draw the product of the given reaction sequence. the starting material consists of 3 fused rings. one of the rings is a 6 carbon ring where carbon 1 is double bonded to an oxygen and carbon 2 and 3 are shared with an adjacent benzene ring. the adjacent benzene ring is fused to another benzene ring via carbons 4 and 5. this reacts with a 4 carbon chain where carbon 2 is double bonded to oxygen and there is a double bond between carbons 3 and 4. the other conditions are n a o c h 3, methanol and heat.

Answer: d collect the data

Explanation:

Collecting the data and making observations comes right before the "analyzing the data" step of the scientific method. Therefore, option (D) is correct.

The scientific method can be described as an empirical method for acquiring knowledge that has developed in science since at least the 17th century.  

The scientific theory includes careful observation, applying what is observed, given that assumptions can distort how one interprets the observation. . A scientific hypothesis is possible to identify a possible outcome of an experiment that conflicts with predictions deduced from the hypothesis.

The scientific theory involves hypotheses, through induction, based on such observations, the testability of hypotheses, experimental and measurement-based statistical, and elimination of the hypotheses based on the experimental findings.

The process in the scientific method includes making hypothetical explanations, and predictions from the hypotheses as logical consequences and then conducting experiments or empirical observations based on those predictions.

Learn more about the scientific method, here:

https://brainly.com/question/7508826

#SPJ2

Answer: the answer Is d

Explanation:

The question that readers should  ask to determine the effect in the sentence is that what happens when more stuff gathers?

Sentence is defined as a group of words, usually containing a subject and a verb, expressing a statement, question, instruction, or exclamation, and, when written, starting with a capital letter and ending with a period or other mark, example, Your sentences are too long and complicated.Many sentences written together form a paragraph.

In law, a punishment  is which is given by a law court to a person or organization that is guilty of a crime. It is a grammatical unit of one or more words that expresses an independent statement, question, request, command, exclamation, etc.

In print or writing, a sentence typically begins with a capital letter and ends with appropriate punctuation; in speech it displays recognizable, communicative intonation patterns and is often marked by preceding and following pauses.

Learn more about sentence,here:

https://brainly.com/question/16890064

#SPJ6

The ion that is likely present in the solution when a deep-blue color appears upon adding NH3(aq) is Cu2+.

When NH3(aq) is added to an aqueous solution, a deep-blue color usually appears due to the formation of a complex ion. The ion that is present in the solution depends on the metal ion present in the solution.

In the case of copper (Cu2+), adding NH3(aq) to an aqueous solution containing Cu2+ ions forms a deep-blue complex ion known as [Cu(NH3)4]2+.This complex ion is responsible for the observed blue color.

On the other hand, adding NH3(aq) to an aqueous solution containing Fe2+ ions forms a pale green complex ion known as [Fe(NH3)6]2+. This complex ion is not responsible for a deep-blue color.

Adding NH3(aq) to an aqueous solution containing Fe3+ ions forms a reddish-brown complex ion known as [Fe(NH3)6]3+. This complex ion is also not responsible for a deep-blue color.The ion Se is not known to form a deep-blue complex ion with NH3(aq).

To learn more about solution Click here:

brainly.com/question/30665317

#SPJ4

Answer:

0. 261

Explanation:

Use ideal gas formula: PV = nRT, meaning that constant R = \(0.08206\frac{(L)(atm)}{(K)(mol)}\)

\((1 atm)(6.28L) = n(0.08206\frac{(L)(atm)}{(K)(mol)})(293 K) \\n = \frac{(1 atm)(6.28L)}{(0.08206\frac{(L)(atm)}{(K)(mol)})(293 K)} \\n = 0.26119...\\n = 0.261\)

To make  type of kidney stone, calcium oxalate,  1 mole of CaCl₂ and 1 mole Na₂C₂O₄ as reactants. The products and balance the chemical reaction is  one mole of CaC₂O₄ and two moles of NaCl. The correct option is b.

The Calcium and the oxalate stones make up the majority of the kidney stones. Many of the people who will develop the calcium-containing stones have the excessive calcium in their urine, that is known as the hypercalciuria.

The 1 mole of CaCl₂ and 1 mole Na₂C₂O₄  reaction is as follows :

CaCl₂   +  Na₂C₂O₄  ---->  CaC₂O₄   +  2NaCl

This is the balanced chemical equation. Therefore the option b is correct.

To learn more about kidney stone here

https://brainly.com/question/26697997

#SPJ4

If the absorbance of the 200 μm solution is 0. 885, then the absorbance of the 25μm is 0.221.

Absorbance (A) is also known by the optical density (OD).

Absorbance is the capacity of a solution to absorb quantity of light.

And Transmittance is the quantity of light which is passes through a solution.

As we know that,

Absorbance / Concentration = Constant

That means, absorbance is directly proportional to the concentration

Therefore,

0.885/ 200 μm = x / 25 ,

where,

x is the absorbance at 25μm.

Calculating all values, we get

X = 25( 0.885/ 200 ) = 0.221

Thus, we calculated that the absorbance of the 200 μm solution is 0. 885, then the absorbance of the 25μm is 0.221.

learn more about absorbance:

https://brainly.com/question/23938376

#SPJ4

The  dichloromethane (DCM) a good organic solvent to solubilize benzoic acid and acetanilide because of the polarity of dichloromethane.

The DCM is a good organic solvent because it is volatile and have the ability to dissolve a wide range of the organic compound. the solubility of the benzoic acid and the acetanilide  in the dichloromethane is due the polarity. the like dissolves like. the DCM is less polar solvent.

The DCM dissolves the non ionic compounds and the slightly polar compounds. the water is the polar compound and it dissolves the ionic compound and the polar compounds. this is the reason dichloromethane (DCM) a good organic solvent to solubilize benzoic acid and acetanilide.

To learn more about dichloromethane here

https://brainly.com/question/16831234

#SPJ4

pCa when 35 mL of 0.009 M Cat2 is titrated with 0.022 M EDTA = 8.442. Balanced chemical equation when EDTA is added to the Ca²⁺ solution, the equation is shown below: Ca²⁺+ EDTA⁴⁻ → CaEDTA²⁻.  Hence, the correct option is d)10.6

Calculation of pСa  when 35 mL of 0.009 M Cat2 is titrated with 0.022 M EDTA (as for EDTA at pH=10 is 0.35) in a solution buffered to a constant pH= 10 when the volume of EDTA added is 48 mL is shown below: Given, Volume of Ca2+ = 35 ml

Concentration of Ca²⁺ = 0.009 M, Volume of EDTA added = 48 ml

Concentration of EDTA = 0.022 M,

pH = 10KCaY-2

= 5.0 x 10¹⁰

To calculate the pCa we have to follow these steps:

First, write down the balanced chemical equation for the reaction that occurs when EDTA is added to the Ca²⁺ solution, the equation is shown below: Ca²⁺+ EDTA⁴⁻ → CaEDTA²⁻

Kf = [CaEDTA²⁻] / ([Ca²⁺] [EDTA⁴⁻])

Initial concentration of Ca²⁺ = 0.009 M

Initial volume of Ca²⁺ = 35 ml, Initial amount of Ca²⁺ = 0.009 × 35

= 0.315 mmol

Final volume of Ca²⁺ = 35 + 48

= 83 ml

Thus, final concentration of Ca²⁺ = 0.315 / 83

= 0.003795 M

In the presence of excess EDTA, the entire amount of Ca²⁺ reacts with EDTA.

Thus,[EDTA⁴⁻] = 0.022 × 48 / 1000

= 0.001056 mol[Ca²⁺]

= 0.003795 mol,

Kf = 5 × 10¹⁰

We have to calculate the [CaEDTA²⁻] at the end point and then convert it into [Ca²⁺] to calculate pCa. Using the equation of equilibrium constant ;Kf = [CaEDTA²⁻] / ([Ca²⁺] [EDTA⁴⁻])

Here,[CaEDTA²⁻] = unknown[Ca²⁺]

= 0[EDTA]

= 0.001056 mol/L

When the end point is reached, all Ca²⁺ is reacted with EDTA to form CaEDTA²⁻.

Thus, moles of EDTA⁴⁻ used = 0.003795 × 83

= 0.315 mmol

Moles of CaEDTA²⁻ formed = 0.315 mmol

Thus, [CaEDTA²⁻] = moles of CaEDTA²⁻ formed / volume

= 0.315 / 83

= 0.003795 M

Now, substituting these values in the equilibrium constant expression;5 × 10¹⁰ = [0.003795] / [(0.001056) (0)]

Thus, [Ca²⁺] = [CaEDTA²⁻]

= 3.607 × 10⁻⁹ M

We know that pCa = -log [Ca²⁺]

Thus, pCa = -log 3.607 × 10⁻⁹

= 8.442 (approx)

Hence, the correct option is d)10.6

To know more about chemical equation, refer

https://brainly.com/question/11904811

#SPJ11

The value of the Q-system is Zero.

The Q-System is a rock mass classification system related to the stability of underground openings. Q-System was originally developed at NGI and is widely used in Norway and internationally. service. The Q value of undisturbed mountains can fluctuate. The Q-System is a rock mass classification system related to the stability of underground openings.

Based on the estimation of six rock parameters the Q value of rocks can be calculated. This value represents the quality of the rock. Rock quality designation RQD is a rough measure of the degree of fracturing or fracturing of rock masses measured as the percentage of drill cores that are 10 cm or longer in length. High-quality rocks have an RQD greater than 75% and low-quality rocks less than 50%. There are several definitions of lithology designation RQD.

Learn more about rocks quality here:-https://brainly.com/question/2472092

#SPJ1

Answer:

Explanation:

The concentration of the sodium hydroxide solution can be calculated by using the balanced chemical equation for the reaction.

1 mole of NaOH reacts with 1 mole of HCl to form 1 mole of NaCl and 1 mole of H2O.

Since 25 cm^3 of 0.1 mol/dm^3 HCl neutralizes 20 cm^3 of NaOH, the number of moles of NaOH present in the solution can be calculated as follows:

0.1 mol/dm^3 HCl * (25 cm^3)/(1000 cm^3/dm^3) = 0.0025 moles HCl

So, the number of moles of NaOH present in 20 cm^3 of the solution is 0.0025 moles.

Finally, the concentration of the NaOH solution can be calculated as follows:

(0.0025 moles NaOH)/(20 cm^3) * (1000 cm^3/dm^3) = 0.125 mol/dm^3

Therefore, the concentration of the sodium hydroxide solution is 0.125 mol/dm^3 (Option C).

\(mass = number \: of \: moles \times molar \: mass\)

\(m = 2.36(223.2) = 526.752 \: grams\)

\(n = \frac{mass}{molar \: mass} = \frac{23.5}{58.4} = 0.40239 \: moles\)

\(n = \frac{0.778}{49} = 0.0158775 \: moles\)

\(n = \frac{number \: of \: particles}{avogadros \: constant} \)

\(n \: o \: p = 0.0455 \times 6.02 \times 10 {}^{23} = 2.7391 \times 10 {}^{22} particles\)

Mass in grams of 2.360 moles of lead (II) oxide is 0.0105.

Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.

No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.

Mass of a particular product is also find out by stoichiometry of a reaction as per the no. of mole given in the reaction.

Given, No. of moles of lead oxide = 2.360 grams

No. of moles = Mass of compound ÷ Molar mass of compound

No. of moles = 2.36 ÷ 223.2

No. of moles = 0.0105

Therefore, Mass in grams of 2.360 moles of lead (II) oxide is 0.0105.

Learn more about mole concept, here:

https://brainly.com/question/31123980

#SPJ2

4FeO + O2 → 2Fe2O3; ΔH = −560.66 kJ

3.8 moles will evolve 532.63 kJ

An exothermic reaction is a chemical reaction that releases heat or energy to its surroundings. In other words, it is a reaction in which energy is transferred from the system to the surroundings. During an exothermic reaction, the products of the reaction have less energy than the reactants, and the difference in energy is released in the form of heat or radiation.

When we have 3.8 moles of FeO;

If 4 moles does evolve 560.66 kJ

3.8 moles will evolve 3.8 * 560.66 kJ/4

= 532.63 kJ

Learn more about exothermic reaction:https://brainly.com/question/10373907

#SPJ1

Answer:

Due to the extensive hydrogen bonding, water has some emergent properties that impact life on Earth in many ways. These include: Cohesion, Adhesion, High surface tension, High specific heat, High Heat of vaporization, and the fact that ice floats (Ice is less dense as a solid than liquid water).

The phrase that describes the plate boundary shown is D. is a region where earthquakes occur .

A transform boundary is the name given to this tectonic plate boundary. Two or more plates slip past one another in such a border. This shift is typically accompanied by some highly active earthquakes.

At a transform plate border, the grinding motion between the plates causes shallow earthquakes, significant lateral rock displacement, and a wide zone of crustal deformation. Essentially While no new crust is produced, subducted, or formed, and no volcanoes are formed, the fault produces earthquakes.

Find out more on plate boundaries at https://brainly.com/question/22005072

#SPJ1

Answer:

n=mass/molar mass

mass=?,molar mass=12+(35.5)4=154g/mol.n=4.63x10²

mass=4.63x10²x154=7128g

Answer:

different sizes of the parachute

Explanation:

this is what is being changed throughout the experiment

C). The ratio of the lattice energies for the two structures is 1 to 4. The lattice energy of an ionic compound is a measure of the strength of the electrostatic forces that exist between the oppositely charged ions in the crystal lattice.

The lattice energy is directly proportional to the charges on the ions and inversely proportional to the interionic distance. Therefore, if two lattice structures have the same interionic distance, but the first lattice contains ions of 1+ and 1− charge, while the second contains ions of 2+ and 2− charge, the ratio of their lattice energies will be 1 to 4. This is because the lattice energy is proportional to the square of the charges on the ions, and the ratio of charges between the two structures is 2:1.

The lattice energy of the second structure, which contains ions of 2+ and 2− charge, will be four times greater than the lattice energy of the first structure, which contains ions of 1+ and 1− charge.
The lattice energy of an ionic compound depends on the charges of the ions and the interionic distance between them. The greater the charges of the ions and the shorter the interionic distance, the stronger the lattice energy. In this case, both lattice structures have the same interionic distance.

To know more about lattice energy   visit:-

https://brainly.com/question/29735933

#SPJ11

If a chemist adds a chemical to pure water and there is a 100-fold increase in the concentration of hydrogen ions then the best approximate value of new pH is 5.

When only pure water is there.

H₂O ⇌ H⁺ + OH⁻

pKw = pH + pOH

14 = pH + pH ( This is because the value of pH and pOH is same in water and we need to consider pH here.)

14 = 2pH

pH= 14/2 = 7

So, pH of pure water is 7.

Concentration of hydrogen ions in pure water can be calculated using the equation

pH = -log[H⁺]

7 = -log[H⁺]

[H+] = 10⁻⁷ M

So, the concentration of hydrogen ions in pure water is 10⁻⁷ M.

Now, the chemist added a chemical to this pure water such that there is   100- fold increase in concentration of hydrogen ions.

So, the new concentration of hydrogen ions is calculated as shown below.

[H⁺] = 100 ×10⁻⁷ M

      = 10⁻⁵ M

The new concentration of hydrogen ions is 10⁻⁵ M.

Now, the new pH can be calculated using the formula

pH  = -log[H⁺]

      = -log[10⁻⁵]

      = -×-5log[10]        

       = 5×1

       = 5

So, the new pH value = 5.

To know more about pH here

https://brainly.com/question/2288405?referre

#SPJ4

The words to complete the sentence are :

1)  he Absorbent material

2) The Plastic bag

3) The solid waste container

4) The Detergent and the water

The complete sentences in the spill cleanup are :

1) The step in liquid spill cleanup.

Surround the area with "Absorbent material", then cover the spill.

2) The step in liquid spill cleanup.

Scoop up the material and place in a "plastic bag".

3) The step in liquid spill cleanup.

Place the bagged waste in a "solid waste container".

4) The step in liquid spill cleanup.

Wipe down the area with "detergent and the water".

To learn more about spill cleanup here

https://brainly.com/question/30246211

#SPJ4

True- Alchemists tried to turn metals into gold. True-If the medicines have been evaluated using unbiased tests.

True- A medieval pseudoscience that tried to find ways to change ordinary metals into gold.

Alchemy is a historical philosophical and proto scientific tradition that was practiced in China, India, the Muslim world, and Europe. It is an old branch of natural philosophy also.

In the early few centuries AD, a handful of pseudo epigraphical works produced in Greco-Roman Egypt are the first to mention alchemy in its Western form.

Which inference can be made from the fact that Fritz Haber received a Nobel Prize in 1918

The Haber-Bosch process was used to make explosives in World War I and The Haber-Bosch process was an important scientific development.

To know more about Alchemy visit

brainly.com/question/11205647

#SPJ1

Answer:

c

Explanation:

Nitrogen is in period 2, and has electrons in both 1 and 2.

The electron seeks to go up to energy level n = 2 from level 1, which is the initial energy level. Since the second energy level has more energy than the first, the electron must gain energy to travel from n = 1 to n = 2. A neutral atom of nitrogen has electrons in energy levels are 1 and 2.

Any discrete value from a set of total energy values for a subatomic particle constrained by a force to a finite space or for a system of such particles, such as an atom or a nucleus, is referred to as the energy level, also known as the energy state, in physics.

"Energy levels" refer to the areas around the nucleus where an atom's electrons are positioned. The 3-dimensional region around the nucleus where electrons are most likely to be is represented by an energy level.

Every component of the cycle of wellness depends on energy. Our attitude and physical health both get better as we get more energy. Connecting with people, exercising, and feeling driven to work hard and accomplish personal objectives are all more likely.

Thus, option C is correct.

To learn more about energy level, follow the link;

https://brainly.com/question/17396431

#SPJ2

Answer:

Cloruro de sodio y fluoruro de sodio.

Dióxido de carbono y monóxido de hidrógeno.

Explicación:

El cloruro de sodio y el fluoruro de sodio son los compuestos que tienen enlaces iónicos. Estos compuestos iónicos se utilizan para diferentes actividades de nuestra vida diaria. El cloruro de sodio se usa para cocinar y el fluoruro de sodio se usa en la pasta de dientes para limpiar nuestros dientes. El dióxido de carbono y el monóxido de hidrógeno son compuestos que tienen enlaces covalentes. El dióxido de carbono se usa en refrescos / refrescos y algunos otros líquidos que se pueden usar en la vida diaria. El monóxido de hidrógeno es el agua pura que bebemos todos los días en nuestra vida diaria y es muy importante para nuestra supervivencia.

As sediments and dead vegetation slowly filed the pond, the types of plants in the community changed.

With the aid of stopping invasive species and new pests from harming or changing native flowers and animals, the regulations prevent the accumulation of useless leaves, bugs, and animals. just photo how the sector may appear! more significantly, decomposers enable the number one producers of an ecosystem, typically flora and algae, to access essential nutrients.

the first oPioneer species are the first creatures to arise in zones of number one succession (usually lichens or mosses). they may be the unique species inside the area. They ought to be robust and resilient.

The Gulf circulate, which transports heat floor water up from the tropics to North the us and Western Europe, turned into removed via the freshwater.

The freshwater killed off the Gulf move, which brings heat floor water up from the tropics to North the usa and Western Europe.

To learn more about vegetation visit:https://brainly.com/question/1981135

#SPJ4

Explanation:

ionic compounds have high melting points

AsF5 and SO2 exhibit dipole-dipole intermolecular forces.

The dipole-dipole intermolecular force arises due to the attraction between the positive and negative ends of polar molecules. Therefore, to determine which substance will exhibit primarily dipole-dipole intermolecular forces, we need to analyze the polarity of each molecule

Therefore, AsF5 and SO2 are the two substances that will exhibit primarily dipole-dipole intermolecular forces.

Learn more about intermolecular force

brainly.com/question/9007693

#SPJ11

Exergonic reactions release energy during product formation.

Exergonic reactions are chemical reactions that release energy as they occur. In an exergonic reaction, the reactants contain more potential energy than the products, and the excess energy is released into the environment.

Exergonic reactions are important in many biological processes, such as cellular respiration, where energy is released from the breakdown of glucose to power the cell's activities.

Learn more about exergonic reactions:https://brainly.com/question/11064909

#SPJ1