For the reaction

CH4+2O2=2H2O+CO2

How many moles of water are produced from the combustion of 45. 2g of methane(CH4)?

The statement "The citric acid cycle is classed as a reductive pathway as it produces reduced electron carriers" is true.

The citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid cycle, is a central metabolic pathway in cellular respiration. This pathway generates reduced electron carriers, specifically NADH and FADH2, which are essential for the production of energy through the electron transport chain.

In the citric acid cycle, acetyl-CoA, derived from carbohydrates, fats, or proteins, is combined with oxaloacetate to form citrate. Through a series of enzyme-catalyzed reactions, citrate is then converted back to oxaloacetate, releasing two molecules of carbon dioxide and generating three molecules of NADH, one molecule of FADH2, and one molecule of ATP or GTP. The reduced electron carriers, NADH and FADH2, transport high-energy electrons to the electron transport chain, where they ultimately contribute to the production of ATP via oxidative phosphorylation.

In conclusion, the citric acid cycle is indeed a reductive pathway as it produces reduced electron carriers, NADH and FADH2, which are crucial for cellular energy production. This pathway is a key component of cellular respiration and plays an essential role in generating energy for various cellular processes.

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Chemical weathering is an example of Airborne oxygen reacts with the iron content of rocks, causing them to change color.

Chemical weathering is a process in which things disintegrate due to chemical reactions, mostly with water and compounds dissolved in it, rather than mechanical processes.

A) Freezing water widens fissures in rocks is a physical phenomenon in which water stuck inside crevices in rocks expands when frozen at lower temperatures. In this method, no chemical changes are seen.

B) Plant roots force their way into cracks in rocks and finally shatter them. This is a physical process in which plant roots search for water and nutrients in fissures in rocks and eventually break them. There are no chemical changes visible here.

C) Oxygen in the air reacts with iron content in rocks, causing them to change color; as we can see, the color of rocks is changing as a result of a chemical reaction between oxygen in the air and iron content in the rocks. This process is also characterized by rock disintegration. As a result, this is referred to as chemical weathering.

D) Strong winds physically peel soft rock away, leaving harder rock behind There is no visible chemical change.

As a result, the correct solution is Option C), which provides completely adequate modifications to be classified as chemical weathering.

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Explanation:

B. HCIO these is the answer

The option that is a conjugate acid of ClO would be (B), HCIO..

A conjugate acid is formed when a base gains a proton. In this case, the base is ClO, which has a negative charge. When ClO gains a proton, it becomes HCIO, which has a positive charge.

The other options are not conjugate acids of ClO because they do not have a positive charge. CL is the neutral form of chlorine, and it cannot gain a proton to become a conjugate acid. Clot is not a chemical compound, and it does not exist.

In conclusion, option B is correct.

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heating is repeated to ensure all water molecules have evaporated

Mass%

Option B

The new volume V₂ is 5.4L

The new volume is calculated using Boyle's law formula

That  is  P₁V₁=P₂V₂

where,

p₁ =  852 torr

V₁ = 27.0

P₂ = 4260 torr

V₂=?

Make  V₂ the subject of the formula by diving into both sides of the equation by P₂

V₂ = P₁V₁/P₂

⇒ 852 *

V₂  is, therefore, = 5.4 L

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Answer:

A

Explanation:

Have a nice day

i cant understand your question define briefly

1) Write the formula

2) The subscripts show us the number of each atom in the formula. In this case, we also have to make sure to count the parenthesis subscript.

There are

3 Cu

2 P

8 O

Answer:

The atomic mass of nitrogen is

Answer:

14.007 amu

Explanation:

Nitrogen has atomic mass of 14.007 amu.

To tell if a reaction has proceeded from IR, one must first obtain an IR spectrum of the reactants, which will show the molecular vibrations that are present in the starting materials.

After the reaction has been carried out, an IR spectrum of the products is obtained. The two spectra are then compared, and the changes in the molecular vibrations observed in the product spectrum indicate if the reaction has taken place.

Infrared spectroscopy (IR) is a powerful analytical tool that is used to study the molecular structure of substances by observing the interactions of infrared radiation with their molecular vibrations.

IR spectroscopy can be used to monitor chemical reactions and determine if they have proceeded by comparing the IR spectra of the reactants to the IR spectra of the products. In this way, IR spectroscopy can provide valuable information about the progress and outcome of a reaction.

For example, if the reactants contain a certain functional group with a characteristic IR absorption band, and this band is absent in the product spectrum, this can be interpreted as evidence that the reaction has proceeded and the functional group has been altered or transformed.

Similarly, the appearance of new IR bands in the product spectrum can also indicate that new functional groups have been formed during the reaction.

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Answer:

A) 12 mol H2O.

Explanation:

Hello,

In this case, for the given reaction:

\(2C_2H_6+7O_2\rightarrow 4CO_2 + 6 H_2O\)

We notice that oxygen is in a 7:6 molar relationship with water, for that reason, the resulting moles of water turn out:

\(n_{H_2O}=14molO_2*\frac{6molH_2O}{7molO_2} \\\\n_{H_2O}=12molH_2O\)

Thus, the answer is A) 12 mol H2O.

Best regards.

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume}\\\)

From the question we have

mass = 418.23 g

volume = 436.2 ml

\(density = \frac{418.23}{436 .2} \\ = 0.958803\)

We have the final answer as

Hope this helps you

Answer: 4.35%

Explanation:

Scientists estimate that the current composition of gases in the Earth's atmosphere has been stable for the last 200 million years or so.

If the Earth was formed 4,600 million years ago then the percentage of her age that the atmosphere has been in its composition is:

= 200 / 4,600 * 100%

= 4.35%

The statement 'On treatment with dilute \(H_{2}SO_{4}\), ethene forms ethanol' is true as ethanol is the main product of this reaction.

The reaction between ethene and dilute H2​SO4​ produces ethanol. This reaction is an example of hydration reaction, in which water is added to a compound. In this case, the water molecule is provided by the dilute sulfuric acid (H2​SO4​). The reaction can be represented by the following equation:CH2=CH2​ + H2​O → CH3​CH2​OH​.

In this reaction, the double bond between the two carbon atoms in ethene is broken, and a hydrogen atom and a hydroxyl group (-OH) are added to the two carbon atoms, forming ethanol. This reaction is typically carried out in the presence of a catalyst, such as phosphoric acid, to increase the rate of the reaction.

Answer:

Fluorine(F),chroine(CI),bromine(BR),iodine(I)astatine(AT)

Explanation:

friend me when u say thank u

Answer:

Secure landfills Landfilling of hazardous solid or containerized waste is regulated more stringently than landfilling of municipal solid waste. Hazardous wastes must be deposited in so-called secure landfills, which provide at least 3 metres (10 feet) of separation between the bottom of the landfill and the underlying bedrock or groundwater table.

Explanation:

The initial kinetic energy is zero because the girl was at rest. The final kinetic energy is thus, 3100 J. Therefore, the change in kinetic energy is 3100 J

Kinetic energy of an object is generated by virtue of its motion. It is related to the mass and velocity of the object as follows:

Ke = 1/2 mv²

Given that, mass of girl = 50 kg

mass of bicycle = 12 kg.

total mass = 62 kg.

velocity = 10 m/s.

Then initial kinetic energy  = 0 since v = 0.

Then, ΔKe = 1/2 62 kg × (10 m/s)² - 0 = 3100 J

Therefore, the change in kinetic energy of the girl is 3100 J.

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Answer:

Titanium fluoride

Explanation:

Answer: the third one 2065

Explanation:

q= (13g)(4.18)(38)

q=2064.92 ≈ 2065

Answer:

D) The solution in the unknown beaker is 0.5NaCL, and the common chloride ion is reducing the solubility of the KCL .

Explanation: Just got it correct on USATESTPREP :)

The substance in the image above would be classified as a mixture of elements (option E).

A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.

On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.

According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.

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Answer:

Seaborgium is an artificially produced radioactive chemical element, it's appearance is unknown, it probably has a silvery white or metallic gray colour. The most stable isotope Sg 271 has an half life of 2.4 minutes.

(i) The solution with the lowest osmotic pressure is 0.06 m urea [(NH2)2C=O)]. This is because urea is a nonelectrolyte, which means it does not dissociate into ions when dissolved in water. As a result, it does not contribute to osmotic pressure.

(ii) The solution with the highest vapor pressure is 0.03 m AgNO3. AgNO3 is an electrolyte, which means it dissociates into ions when dissolved in water. Since the ions are attracted to the water molecules, the solution has a higher vapor pressure than the other solutions.

(iii) The solution with the highest boiling point is 0.02 m CaCl2. CaCl2 is an electrolyte, which means it dissociates into ions when dissolved in water. The ions are strongly attracted to the water molecules, thus increasing the boiling point of the solution.

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Answer:

84400cg

Explanation:

100000 cg in 1kg

100000(8.44)=84400cg

Answer:

\(volume = \frac{mass}{density} \\ \)

Gene Vincent and Eddie Cochran were particularly popular with teenagers and young adults during the 1950s.

Gene Vincent and Eddie Cochran were American rock and roll musicians who gained popularity in the 1950s. They were part of the rockabilly movement, which combined elements of country music with rhythm and blues.

Gene Vincent was known for his hit song 'Be-Bop-A-Lula,' which became a rock and roll classic. Eddie Cochran was known for his energetic performances and songs like 'Summertime Blues' and 'C'mon Everybody.'

Both artists had a significant impact on the development of rock and roll music and were particularly popular with teenagers and young adults during their time.

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Gene Vincent and Eddie Cochran were particularly popular with the youth and rock and roll enthusiasts of the late 1950s and early 1960s.

Gene Vincent and Eddie Cochran were particularly popular with the youth and rock and roll music enthusiasts of the late 1950s and early 1960s. Their energetic performances and rebellious image resonated with the emerging teenage audience at the time.

They were influential figures in the rockabilly and rock and roll genres, known for their hits such as "Be-Bop-A-Lula" by Gene Vincent and "Summertime Blues" by Eddie Cochran. Their music and style captured the spirit of youthful rebellion and played a significant role in shaping the early rock and roll era.

Gene Vincent and Eddie Cochran were influential figures in the rock and roll music scene of the late 1950s and early 1960s. They were particularly popular with the teenage audience of the time, as their music and persona embodied the rebellious and energetic spirit of the youth culture.

Gene Vincent, born Vincent Eugene Craddock, rose to fame with his hit song "Be-Bop-A-Lula" in 1956. Known for his distinctive vocal style and wild stage presence, Vincent became a rockabilly icon. His music blended elements of rock and roll, rhythm and blues, and country, creating a unique sound that resonated with young listeners. Songs like "Bluejean Bop" and "Race with the Devil" further solidified his popularity.

Eddie Cochran, on the other hand, was a multi-talented musician, singer, and songwriter. He gained fame with his upbeat and catchy songs, such as "Summertime Blues" and "C'mon Everybody." Cochran's music was characterized by his skillful guitar playing, heartfelt lyrics, and a distinctive rock and roll sound. His contributions to the genre and his early death at the age of 21 in a tragic car accident solidified his status as a rock and roll legend.

Both Gene Vincent and Eddie Cochran were known for their electrifying live performances and their impact on the rock and roll genre. Their music resonated with young audiences who were seeking an outlet for their rebellious spirit and love for energetic, guitar-driven music. Their influence can still be felt in the development of rock music and the inspiration they provided to subsequent generations of musicians.

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