Point N is on line segment MO. Given NO = 2x – 3, MO = 3x + 5, and

MN = 2x + 3, determine the numerical length of MO.

Answer:

C6H12O6

Explanation:

C6H12O6

The final temperature of the water is: T_final = 45.0°C

We can use the formula for the specific heat capacity of the water to solve this problem:

q = mcΔT

First, we can calculate the initial energy of the water:

q = mcΔT

q = (10.0 g) (4.184 J/g°C) (25.0°C)

q = 1,046 J

Next, we can calculate the final temperature after absorbing 840 J:

q = mcΔT

840 J = (10.0 g) (4.184 J/g°C) (ΔT)

ΔT = 20.0°C

Therefore, the final temperature of the water is:

T_final = T_initial + ΔT

T_final = 25.0°C + 20.0°C

T_final = 45.0°C

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Answer:

A sprinter consumes more oxygen than a marathon runner.

Explanation:

A sprinter requires big amounts of air in a short time to not get tired as fast and run faster. A marathon runner has more controlled and paced breathing so he does not get tired but can run long distances. Marathon runners also run slower than sprinters.

Answer:

Solution temperature.

Explanation:

Hello there!

In this case, considering this question about chemical kinetics, it will be possible for us to analyze two perspectives:

1. Molecular: here, we infer that the solution temperature will provide more energy to the molecules in order to undergo more effective crashes which will make more products and therefore, increase the rate constant.

2. Mathematical: by means of the Arrhenius equation, it will be possible to tell that the increase in the temperature of the system, the negative of the exponent present in such equation will increase and therefore turn the rate constant bigger.

In such way, we infer the answer is solution temperature.

Regards!

Answer:

Na=sodium FCN=Cyanogon Flouride. NOJ =DEOXYNOJIRIMYCIN/MORANOLINE

An atom of element A has a mass of 2 units, while an atom of element B has a mass of 5 units, the ratio of element A to element B in a compound that had a mass of 11 units is 3:1

Atom are defined as smallest unit into which matter can be divided without the release of electrically charged particles.

It can also be defined as the building blocks of matter and were created after big bang theory.

Mass are defined as quantitative measure of inertia, fundamental property of all matter.

Elements are defined as a pure substance consisting of only one type of atom which all has the same numbers of protons in their nuclei.

As ratio of element A to element B is given then the ratio will be 3:1

Thus, an atom of element A has a mass of 2 units, while an atom of element B has a mass of 5 units, the ratio of element A to element B in a compound that had a mass of 11 units is 3:1

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Quantifying historical pollution sources in sediments through contaminant analysis is called Backstripping.

The backstripping method in ecotoxicology is a technique used to assess the historical contributions of different sources of contamination in sediments. It involves analyzing sediment cores to determine the deposition of contaminants over time. By comparing contaminant profiles with known historical records, the method aims to identify and quantify pollution sources.

However, the backstripping method has weaknesses. It relies on accurate historical records, which can be incomplete or unreliable. It also assumes steady-state conditions and has limited temporal resolution, hindering the identification of short-term pollution events or emerging contamination sources. Additionally, it provides indirect source attribution, and new sources without historical records may not be identified.

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Zn (s) + 2 HCl (aq) --→ ZnCl2 (aq) + H2 (g) Zn being oxidized during the reaction: Correct answer is 1. oxidized. Zn's oxidation status is shifting from 0 to +2.

A chemical process called oxidation occurs. As a result of atoms or groups of atoms losing electrons, it is described as a process. The addition or loss of oxygen or hydrogen in a chemical species is another method to define oxidation. An oxidation reaction takes place when oxygen interacts with a substance or an element. Another way to think of oxidation is as the process of removing hydrogen from the species of reactants. Molecule, atom, or ion oxidation is the process of losing electrons. Initially, reactions where an element interacts with oxygen were referred to as oxidations. For instance, the chemical interaction between magnesium metal and oxygen to produce magnesium oxide is the oxidation of magnesium.

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6 mol of KClO3 will produce 288 grams of O2, when 6 mol of KClO3 decomposes.

How to calculate mass of O2 for this problem?

The balanced chemical equation for KClO3 decomposition is:

2 KClO3 →

2 KCl + 3 O2

According to the equation, 2 moles of KClO3 produce 3 moles of O2.

Therefore, 6 moles of KClO3 will produce (6/2) x 3 = 9 moles of O2.

To calculate the mass of O2 produced, we need to use the molar mass of O2, which is approximately 32 g/mol.

So, the mass of O2 produced will be:

mass = number of moles x (molar mass)

mass = 9 mol x 32 g/mol

mass = 288 g

Therefore, 6 mol of KClO3 will produce 288 grams of O2.

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Rate=k[NO]2[O2]  of the following is the rate law for the overall reaction that is consistent with the proposed mechanism.

A simple set of reactions known as elementary steps or elementary reactions illustrate the progression of a reaction now at molecular level. The series of simple steps that together make up a full chemical reaction is known as a reaction mechanism.

A reaction that requires two or more basic stages is considered to be multistep or complex. An intermediary is a chemical creature that is created in one basic stage of either a reaction and eliminated in the following. In a reaction system, the step that moves the slowest is the rate-determining step.

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In paramecium which has eukaryotic cells mitosis occurs two or three times a week.

Eukaryotic cells are the cells which show presence of nucleus and possess membrane bound organelles.They may be unicellular or multicellular depending on the number of cells present in them.

In eukaryotes , the genetic material is is stored within an organelle which is called as nucleus wherein it is organized in to long molecules which are called as chromosomes.They possess other organelles like mitochondria which are responsible for generation of energy . Endoplasmic reticulum which helps in transport of proteins .

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Answer:

pH = 6.76

Explanation:

Ka = 3.4x10⁻⁷; 3.0x10⁻⁵g

The molarity of the vitamin B1 -Molar mass: 327.268g/mol- solution is:

3.0x10⁻⁵g * (1mol / 327.268g) = 9.167x10⁻⁸M

The Ka expression is:

Ka = 3.4x10⁻⁷ = [H⁺] [B1-] / [B1]

Where B1- is the conjugate base of vitamin B1,

In equilibrium, the concentrations are:

[H⁺] = X

[B1-] = X

[B1] = 9.167x10⁻⁸M - X

Where X is reaction coordinate

Replacing:

3.4x10⁻⁷ = [X] [X] / [9.167x10⁻⁸M - X]

3.117x10⁻¹⁴ -3.4x10⁻⁷X = X²

3.117x10⁻¹⁴ -3.4x10⁻⁷X - X² = 0

Solving for X:

X = -4.15x10⁻⁷M. False solution. There is no negative concentrations.

That means from the equilibrium of vitamin B1, the [H⁺] = 7.51x10⁻⁸M

From the autoinoization of water:

[H⁺] = 1.0x10⁻⁷M

[H⁺] in the solution is:

1.0x10⁻⁷M + 7.51x10⁻⁸M = 1.751x10⁻⁸M

As pH = -log[H⁺]

Answer:

C,  hydrogen.

Explanation:

Answer:

The answer is D

Explanation:

Non metals are:

Hydrogen (H)

Sulphur (S)

Phosphorus (P)

Carbon (C)

Fluorine (F)

Oxygen (O)

Nitrogen (N)

Chlorine (Cl)

Bromine (Br)

Helium (He)

Argon (Ar)

Iodine (I)

Neon (Ne)

Krypton (Kr)

Radon (Rn)

Selenium (Se)

Xenon (Xe)

Considering the definition of molar mass, the correct answer is option c): the mass of 1.85 moles H₂O₂ is 62.9 grams.

The molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.

The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

So, the molar mass of the compound H₂O₂ is calculated as:

H₂O₂= 2× 1 g/mole + 2× 16 g/mole

Solving:

H₂O₂= 34 g/mole

You can apply the following rule of three: If by definition of molar mass 1 mole of the compound contains 34 grams, 1.85 moles of the compound contains how much mass?

mass= (1.85 moles× 34 grams)÷ 1 mole

mass= 62.9 grams

Finally, the mass of 1.85 moles H₂O₂ is 62.9 grams.

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Answer:

The reaction will proceed to the right and produce more products.

Explanation:

The reaction produces heat, so it is exothermic. If you remove heat, the reaction counters that by producing more products and replacing the heat that was lost.

Answer:

2.0 mole H2O

.....................................

A solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.

We must first convert the amount of nitrate(V) ions in drinking water to moles per litre since the threshold concentration over which "Blue-Baby" Syndrome might manifest is 0.05 mg/cm3.

It is necessary to know the molar mass of nitrate(V) ions in order to convert from mg/cm3 to moles per litre (NO3-).

The formula below can be used to determine NO3-'s molar mass:

N: 14.01 g/mol for the atomic mass

O: 16.00 g/mol is the atomic mass (3 oxygen atoms in NO3-)

NO3-'s total molar mass is equal to 14.01 + 16.00 x 3 = 62.01 g/mol.

Let's now translate the specified concentration from mg/cm3 to moles/liter (M).

As 1 g = 1000 mg, 1 mg/cm3 is 0.001 g/cm3.

1 cm3 = 0.001 g/mL multiplied by 0.001 g/cm3

1 L/1000 mL x 0.001 g/mL = 0.001 g/L

We must change the grams into moles using the molar mass in order to get the molarity:

1.61 × 10-5 mol/L = 0.001 g/L / 62.01 g/mol

As a result, a solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.

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Yes, it is possible.

The tensile modulus of the linear and isotactic poly(vinyl chloride) will be higher. Compared to branched polymers, linear polymers are more prone to crystallize.

What is the mechanical properties of polymers?

The moduli of elasticity and other classes of strength measures, such as the yield and tensile strengths, can be used to characterize the mechanical properties of polymers in a manner that is quite similar to that of metals or other common crystalline materials. The most significant mechanical and elastic characteristics of polymeric materials are summarized generally below:

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Answer: the percent composition of Ba(OH)2 is: 80.15% Ba, 18.67% O and 1.176% H

Explanation:

The question requires us to determine the percent composition of Ba(OH)2.

The percent composition of a compound describes the amount of each element in the molecule in terms of mass percentage. We can determine the percentage composition using the molar mass of the compound and the molar masses of each element, considering the amount of atoms of these elements in the compound.

1) Determining the molar mass of the compound

The atomic masses of Ba, O and H are as it follows:

atomic mass Ba = 137.3 u

atomic mass O = 15.99 u

atomic mass H = 1.007 u

To calculate the molar mass of Ba(OH)2, we'll need to consider the amount of each element in the molecule and the atomic mass of the elements:

Therefore, the molar mass of Ba(OH)2 is 171.3 g/mol.

2) Determining the percent composition

We can determine the percent composition of each element in the compound using the following equation:

where X is a generic element.

Thus, considering the molar mass calculated and the atomic masses listed previously, we can calculate the percent composition of Ba, O and H in the molecule Ba(OH)2 as:

(note that the atomic mass, in u or amu, is numerically equal to the molar mass of the element, in g/mol).

Therefore, the percent composition of Ba(OH)2 is: 80.15% Ba, 18.67% O and 1.176% H.

Humans negatively impacted the rainforests due to the building of human cities and pollution (industrial) activities.

The rainforests are specific biomes that contain a huge amount of biodiversity and they need to be protected in order to maintain homeostasis.

We can decrease the destruction of rainforests by using ecological patches that conserve biodiversity hotspots.

In conclusion, humans negatively impacted the rainforests due to the building of human cities and pollution activities.

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The balanced half-reaction equation for the reduction of Pb2+ ions to lead metal is:

Pb2+ + 2e- → Pb

According to this equation, 2 electrons are required to reduce 1 Pb2+ ion to lead metal.

The molar mass of lead (Pb) is 207.2 g/mol, so the mass of 1 mole of lead is 207.2 g. Therefore, the mass of 0.299 g of lead is:

0.299 g / (207.2 g/mol) = 0.00144 mol

To deposit this amount of lead, we need to transfer 0.00144 mol of Pb2+ ions to lead metal. This requires the transfer of 2 x 0.00144 = 0.00288 moles of electrons.

The amount of electric charge required to transfer 0.00288 moles of electrons is:

Q = n x F = 0.00288 mol x 2 x 96,485.3329 C/mol = 557.4 C

where n is the number of moles of electrons transferred and F is the Faraday constant.

The amount of time required to deposit this amount of lead at a current of 0.627 A is given by the equation:

Q = I x t

where Q is the electric charge in coulombs, I is the current in amperes, and t is the time in seconds. Solving for t, we get:

t = Q / I = 557.4 C / 0.627 A = 888.9 seconds

Therefore, it would take approximately 888.9 seconds (or about 14.8 minutes) to deposit 0.299 g of lead metal from a solution containing Pb2+ ions at a current of 0.627 A.

Answer:

342.3 g

Explanation:

From the question given above, the following data were obtained:

C = 12.011 g/mol

H = 1.00794 g/mol

O = 15.9994 g/mol

Molar mass of C₁₂H₂₂O₁₁ =?

C = 12 × 12.011 = 144.132 g

H = 22 × 1.00794 = 22.17468 g

O = 11 × 15.9994 = 175.9934 g

Total mass = 144.132 + 22.17468 + 175.9934

Total mass = 342.3 g

The internal energy change ΔE is the sum of heat energy absorbed and the work done on expansion. Here, the work done is -116.02 J. Then ΔE is  - 1.17 × 10⁴ kJ.

The internal energy of  a system is the sum of its total of mechanical and electrical energy. For an isobaric expansion , there will be a change in internal energy.

According to first law of thermodynamics, the change in internal energy, ΔE  is:

ΔE  = q + w

Here, q = 30.9 kJ.

then, work done by expansion w = - p (V2- V1

w = - 0.975 atm (995 - 876 L)

   = - 116.02  L. atm

1 l. atm = 101.3 J

then, -116.02 ×101.3 J = -11752.82 J

Then, ΔE  = 30.9 kJ + ( -11752.82 J) = -1.17 × 10⁴ kJ.

Therefore, the change in internal energy is -1.17 × 10⁴ kJ.

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Answer:

True if by rifting you mean continental rift. If not idk.

KAnswer:

See explanation

Explanation:

It is more common to use H2SO4 for dehydration reaction rather than HCl because HCl contains a good nucleophile,the chloride ion.

Owing to the presence of the chloride ion, a substitution reaction involving the chloride ion may also proceed also thereby affecting the elimination reaction.

Also, concentrated H2SO4 is a very good drying agent thus, as long as it is used, the alcohol substrate is completely dehydrated to yield the alkene.

Note that HCl is not a dehydrating agent.

Answer:

Explanation:The volume of the box is 8.6 × 10³ in².

V = lwh = 26 in × 18.4 in × 17.92 in = 8.6 × 10³ in²

Note: The answer can have only two significant figures because that is all you gave for the length of the box.

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The formula for the hydrate is BaCl₂ × ₀.₀₈₂H₂O, and the name of the hydrate is Barium Chloride Monohydrate.

Calculating the value of "x" in the combination BaCl₂ × ₓH₂O will help us discover the hydrate's formula and name. The mass of water that was contained in the hydrate is represented by the difference between the mass before and after heating.

Mass of hydrated barium chloride (BaCl₂ × ₓH₂O) = 10.05 g

Mass of anhydrous barium chloride (BaCl₂) = 8.57 g

To find the mass of water lost:

Mass of water lost = Mass of hydrated barium chloride - Mass of anhydrous barium chloride

= 10.05 g - 8.57 g

= 1.48 g

Thus, the molar mass of water (H₂O) is 18.015 g/mol, calculate the number of moles of water lost:

Moles of water lost = Mass of water lost ÷ Molar mass of water

= 1.48 g ÷ 18.015 g/mol

= 0.082 moles

Now compare the moles of water lost to the moles of anhydrous barium chloride that are still present, in order to calculate the value of "x" in the hydrate formula BaCl₂ × ₓH₂O.

One mole of hydrated barium chloride loses "x" moles of water to produce one mole of anhydrous barium chloride, as shown by the chemical equation.

Moles of anhydrous barium chloride = 1 mole

The ratio of moles of water get reduced to moles of anhydrous barium chloride is 1:x, we can set up the following equation:

0.082 moles (water) ÷ 1 mole (anhydrous barium chloride) = 1:x

To solve for x:

x = 0.082

Thus, the formula for the hydrate is BaCl₂ × ₀.₀₈₂H₂O. Hence, name the hydrate, we use the prefix "mono" for the subscript 0.082. The name of the hydrate is Barium Chloride Monohydrate.

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