can you answer this?
Mass: 108g
volume:12cm to the third power (3)

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\\)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

\(n = \frac{5.66 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{5.66}{6.02} \\ = 0.940199...\)

We have the final answer as

Hope this helps you

Surely, when there is a decrease in temperature accompanying a chemical reaction, this indicates that: energy was absorbed.

The correct answer choice is option d.

In happens that in a chemical reaction which leads to the absorption of energy due to decrease in temperature, this results as a result of the fact that bonds in the reactants of the reaction are broken than it is released

So therefore, we can now deduce and confirm from the explanation given above that it is an endothermic reaction when energy is absorbed by the system.

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Answer:

Cells are made of several parts that work together.

Explanation:

It is this because bacteria are made of 1 cell, unicellular. All living things do not have to have more than 1 cell proven by bacteria which has one cell. And cells are living meaning it has to make up living things.

Hope this helps:)

Answer:

Option 3

Explanation:

Cells are made up of several parts (Organelles) that work together resulting in the functioning of the cell which further results in the functioning of the whole body.

The enzyme β-ketothiolase cleaves off the acetyl-CoA molecule from the 3-ketoacyl-CoA, releasing acetyl-CoA and the remaining fatty acid chain forms acyl-CoA, which is two carbons shorter than the original fatty acid chain.

The complete reaction scheme for the catabolism of Oleoyl-CoA is given below:Oleoyl-CoA is broken down into acetyl-CoA, releasing 150 ATP molecules by the process of Beta-oxidation. The complete reaction scheme for the catabolism of Oleoyl-CoA is given below:

Step 1: Oleoyl-CoA is transported to the mitochondria matrix from the cytoplasm with the help of the carnitine shuttle system.

Step 2: The enzyme Acyl-CoA dehydrogenase catalyzes the removal of two hydrogen atoms from the alpha and beta carbons in the fatty acid chain and oxidizes it. This process forms a double bond between the alpha and beta carbon atoms, leading to the formation of trans-Δ2-enoyl-CoA.

Step 3: The enzyme enoyl-CoA hydratase adds a water molecule to the trans-Δ2-enoyl-CoA, converting it into L-3-hydroxyacyl-CoA.

Step 4: The enzyme L-3-hydroxyacyl-CoA dehydrogenase oxidizes L-3-hydroxyacyl-CoA, releasing a hydrogen ion (H+) and two electrons (2e-) and converts it into 3-ketoacyl-CoA.

Step 5: The enzyme β-ketothiolase cleaves off the acetyl-CoA molecule from the 3-ketoacyl-CoA, releasing acetyl-CoA and the remaining fatty acid chain forms acyl-CoA, which is two carbons shorter than the original fatty acid chain.

The cycle starts again, and this process is repeated until the fatty acid chain is completely degraded.

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Answer:

2

Explanation:

Answer:

B. Presented in all matter!

Answer:

B- presented in all matter :)

Explanation:

good luck!

Answer:

Filtration can be used to separate an insoluble solid from a liquid, or a precipitate from the reaction mixture in which it formed. The solid which collects in the filter paper is called the residue. The clear liquid which passes through the filter paper is called the filtrate.

Explanation:

i had this question before

Answer:

144 boxes, 72,000 washers

Explanation:

I'm not sure if this is right but convert the 18kg to g and then divide it by the grams. You get 144 and then multiply it by 500 for the total number of washers

Total positive charge in 1.80 kg of plutonium is 13365,04 x 10^4 C

Solution:

1 mole of plutonium = 244 gm

3.6 kg of plutonium = 3.6 x 1000 = 3600 gm

Number of moles = 3600/244 = 14.754 moles

One moles of plutonium contains protons 6.023 x 10^23 x 94

Total number of protons in 14.754 moles = 6.023 x 10^23 x 94 x 14.754

                                                                    = 8353.15 x 10^23

Total Positive charge = 8353.15 x 10^23 x 1.6 x 10^-19

Total positive charge = 13365,04 x 10^4 C

The mole, represented by the symbol mol, is the fundamental SI unit of material quantity. The amount of a substance determines how many elementary entities of that substance are present in an object or sample. Since the SI fundamental units were revised in 2019, the mole is now exactly defined as 6.022140761023.

The amount of a substance determines how many elementary entities of that substance are present in an object or sample. Since the SI fundamental units were revised in 2019, the mole is now exactly defined as 6.022140761023.

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Answer:

In the elemental form, non-metals can be gas, liquid or solid. They aren't shiny (lustrous) and they don't conduct heat or electricity well. Usually their melting points are lower than for metals, although there are exceptions. The solids usually break easily, and can't bend like metals

Explanation:

Answer:

The molar mass is 0.02 g/mol

Explanation:

The molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).

\(M=\frac{n}{m}\)

We are given

\(m=40\) g

\(n=0.8\) mol

Substituting our values into the equation gives us

\(M=\frac{0.8}{40}\)

\(M=0.02\) g/mol

The mass of the water is 34.7 g.

To solve this problem, we can use the equation for heat transfer, which states that the heat lost by the hot object is equal to the heat gained by the cold object. In this case, the hot object is the water and the cold object is the iron rod.

First, we need to calculate the heat lost by the water. We can use the equation Q = mCΔT, where Q is the heat lost, m is the mass of the water, C is the specific heat of water (4.184 J/g°C), and ΔT is the change in temperature.

which is 59.5°C - 63.2°C = -3.7°C.
Q = mCΔT = m(4.184 J/g°C)(-3.7°C) = -15.52m J
Next, we need to calculate the heat gained by the iron rod. We can use the same equation, but with the specific heat of iron (0.450 J/g°C) and the mass of the iron rod (32.5 g). which is 59.5°C - 22.7°C = 36.8°C.
Q = mCΔT = (32.5 g)(0.450 J/g°C)(36.8°C) = 538.20 J
-Q = Q
-15.52m J = 538.20 J
m = 34.7 g
Therefore, the mass of the water is 34.7 g.

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The determine the energy released when 1,000,000 Uranium-235 atoms split, you need to know the energy released per fission event. Here's a step-by-step explanation Determine the energy released per fission event: Uranium-235 undergoes nuclear fission, and when it splits, it releases a certain amount of energy.

The average energy released per fission event for U-235 is approximately 200 MeV (million electron volts). Convert the energy per fission event to joules: 1 electron volt (eV) is equal to 1.602 x 10^ (-19) joules. So, 200 MeV is equivalent to 200 x 10^6 x 1.602 x 10^ (-19) joules, which is approximately 3.204 x 10^(-11) joules. Calculate the total energy released by 1,000,000 U-235 atoms: To find the total energy released by 1,000,000 Uranium-235 atoms, multiply the energy released per fission event (in joules) by the number of atoms. Therefore, 1,000,000 x 3.204 x 10^ (-11) joules = 3.204 x 10^ (-5) joules. So, the energy released when 1,000,000 Uranium-235 atoms split is approximately 3.204 x 10^ (-5) joules.

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Answer:

we make water dirty

Explanation:

Answer:

Carbohydrates

Hope this helps:)

Answer:

True

Explanation:

Answer:

True.

Explanation:

Silver is a good conductor of electricity because the atoms have many electrons that can be moved.

Answer:

B

Explanation:

because Mg is stronger than Al

Answer:

The Earth rotates on its axis at a constant tilt.

Earths rotation on its axis at a constant tilt provides seasonal changes in the different part of the country. This resulted to the distribution of the heat of the sun from northern hemisphere and to southern hemisphere. Making areas with hot temperature may experience rainy season in a year. This will help production of crops or food supply and water supply available for living organism.

If the Earth's rotation is not tilted, then both the northern hemisphere and southern hemisphere will be covered with thick ice sheet. The equatorial region or near the equatorial region will experience tremendous warm temperature. Making our life on Earth not ideal for living.

Magnetic Field

Earth is protected by the magnetic from the dangerous radiation coming from the heat of the sun.

Water and oxygen

These two elements are essential for living organism in order to survive. The existence of waters proves that Earth temperature is conducive for living.

The number 0.00208 has three significant figures. Significant figures are the digits in a number that carry meaningful information about its precision. In the case of 0.00208, the digits 2, 0, and 8 are all significant.

Zeros that appear before the first nonzero digit (leading zeros) are not considered significant. Therefore, the leading zero in 0.00208 is not counted as a significant figure.

To summarize, the number 0.00208 has three significant figures: 2, 0, and 8.

If we write the number as 0.002080, the trailing zero after the 8 would be considered significant, indicating that there are four significant figures in the number.

If we express the number in scientific notation, such as 2.08 x 10^(-3), the digits 2, 0, and 8 remain significant, regardless of the exponent. Hence, there are still three significant figures in the number.

It's important to note that significant figures are not limited to decimal numbers. They are also relevant in whole numbers and in calculations involving measurements with uncertainties.

Understanding the concept of significant figures allows us to maintain consistency and precision in calculations and measurements. By recognizing the significant figures in a number, we can appropriately determine the number of decimal places to retain in the result of a calculation or measurement.

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The strong base KOC(CH​​​​​₃)₃ 2 equivalents in DMSO and Cl₂  reagents are needed to prepare CH₃CH₂CH₂CH₂C=CH.

Option G and J are correct.

Alkenes on expansion with chlorine goes through expansion response and structures vicinal dihalide and afterward the vicinal dihalide on treating serious areas of strength for with like sodamide or potassium ter-butoxide gives the alkyne by evacuation of HX in the meantime in the response in the event that the base focus is high, it can likewise digest the terminal alkyne proton additionally and structures alkynyl anion at long last on workup we will get our necessary alkyne.

We will employ Cl₂ from the aforementioned reagents.

A hydrocarbon with one or more double covalent carbon-carbon bonds is an alkene. A hydrocarbon with one or more triple covalent carbon-carbon bonds is an alkyne.

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An example of a production using fermentation process is the production of ethanol through yeast fermentation.

Yeast fermentation is a commonly used process to produce ethanol from various carbohydrate sources, such as sugars or starches. The fermentation process involves the conversion of sugars into ethanol and carbon dioxide by yeast cells, specifically Saccharomyces cerevisiae.

Gas-liquid mass transfer in the cellular system for yeast fermentation occurs through the following steps:

Oxygen Transfer: In the beginning of the fermentation process, oxygen is required for the growth and metabolism of yeast cells. Oxygen is transferred from the gas phase (air) to the liquid phase (fermentation broth) through mass transfer. This is typically achieved by bubbling air or oxygen-enriched gas into the fermentation vessel. Oxygen dissolves into the liquid and becomes available for yeast cells to utilize.

Carbon Dioxide Release: As yeast cells metabolize the sugars, they produce ethanol and carbon dioxide as byproducts. The carbon dioxide is released into the gas phase, causing the formation of gas bubbles within the liquid. The gas bubbles rise to the surface of the fermentation broth, where carbon dioxide is released into the atmosphere.

The gas-liquid mass transfer in yeast fermentation is crucial for maintaining adequate oxygen levels for yeast growth and removing the produced carbon dioxide from the fermentation broth. Efficient mass transfer ensures optimal yeast activity and ethanol production.

References:

Chen, X., Nielsen, K. F., & Borodina, I. (2014). Kiwi yeast-like endophytes produce xylitol. Microbial cell factories, 13, 112. doi: 10.1186/s12934-014-0112-2

Grigoras, C. G., Moraru, L., & Popescu, C. (2019). Bioethanol production from biomass: overview of biomass conversion technologies. In Advanced technologies for the valorization of biomass, waste, and byproducts (pp. 49-80). Elsevier. doi: 10.1016/B978-0-12-818762-0.00002-4

The production of ethanol through yeast fermentation is an example of a production process using fermentation. Gas-liquid mass transfer in this cellular system involves the transfer of oxygen from the gas phase to the liquid phase for yeast growth and the release of carbon dioxide into the gas phase as a byproduct of yeast metabolism. Efficient mass transfer is essential for optimal fermentation performance and ethanol production. The provided references can be consulted for further information and citations.

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Answer:

D. Pressure

Explanation:

The rate of a reaction is defined as the speed at which the reactants are converted into products. Factors influencing the rate of a reaction are concentration, catalyst, temperature, surface area,  and pressure, etc.

In case of the reaction rate of gases, pressure will only have its affect as pressure do not have any influence on solid and liquid.

While concentration, surface area and catalyst influence all reaction rates including solid, liquids and gases.

Hence, the correct option is (d) pressure.

Mass of calcium carbonate (in grams) can be dissolved by 4.1 g of Hcl is 5.62g.

A balanced equation is one for a chemical reaction in which the overall charge and the number of atoms for each component are the same for both the reactants and the products. In other words, the mass and charge of both sides of the reaction are equal.

The reaction between calcium carbonate and hydrochloric acid can be expressed through the chemical reaction,

CaCO₃ + 2HCl --> CaCl₂ + H₂O + CO₂

Hydrochloric acid has a molecular weight of 36.45 g/mol compared to calcium carbonate's molecular weight of 100 g/mol. According to the equation above, 72.9 g of hydrochloric acid may dissolve 100 g of calcium carbonate.

x = (4.1 g HCl)(100 g CaCO3 / 72.9 HCl)

x = 5.62 g.

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Simulation is a tool used to help people understand and make decisions about complex systems by imitating them. However, the simulation technique has some drawbacks or limitations that can affect its ability to model the synthesis of ammonia.

Limitations of the simulation1. Constraints of time and money Simulations are conducted in a computer or another electronic device. Despite the fact that computer processors have advanced significantly in recent years, simulations can still take a long time to complete. Furthermore, computers and other electronic devices used for simulations are expensive and require technical expertise to operate. These limitations of time and money make it challenging for simulations to model the synthesis of ammonia accurately.2. Inaccurate data input Simulations are only as good as the data entered into them. Inaccurate or incomplete data will result in flawed simulations. As a result, it's critical to ensure that accurate data is used in simulations. Any inaccuracies or incomplete data can negatively impact the simulation's ability to model the synthesis of ammonia.

The constraints of time and money can limit the simulation's ability to model the synthesis of ammonia. The cost of using computers or electronic devices to perform simulations can be prohibitively high. Furthermore, simulations can take a long time to complete, which can be impractical for certain applications.The second limitation of the simulation is inaccurate data input. The data used in simulations must be accurate to produce reliable results. If the data used is inaccurate, the simulation's results will also be inaccurate. The synthesis of ammonia is a complex process that necessitates the use of accurate data. As a result, any inaccuracies in the simulation data can have a significant impact on the simulation's ability to model the process of ammonia synthesis.

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The negative enthalpy of the production of xenon fluorides causes their instability. This statement is false.

Enthalpy of formation refers to the change in enthalpy when one mole of a compound is formed from its constituent elements in their standard states. Negative enthalpy of formation indicates an exothermic reaction, where energy is released during the formation of the compound.

Xenon fluorides, such as xenon hexafluoride and xenon tetrafluoride, are indeed highly reactive and unstable compounds. Their instability is primarily attributed to the presence of strong Xenon-Fluorine bonds, which make these compounds highly reactive and prone to decomposition. The high electronegativity difference between xenon and fluorine leads to the formation of polar covalent bonds, resulting in a high degree of ionic character.

The high reactivity and instability of xenon fluorides arise from the large size of xenon atoms, making them susceptible to steric strain. The repulsion between the fluorine atoms surrounding the central xenon atom can cause structural instability and result in decomposition or violent reactions.

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The amount of copper deposited at the cathode is directly proportional to the amount of electricity passed through the solution. From the given mass of copper deposited, we can calculate the amount of electricity passed using

Faraday's law

:

moles of electrons = mass of substance / molar mass * number of electrons transferred

For copper, the number of

electrons

transferred is 2, so the moles of electrons passed is:

2.00 g / 63.55 g/mol * 2 = 0.0629 moles of electrons

Since the reaction at the anode is the oxidation of water to oxygen gas:

2 H2O(l) → O2(g) + 4 H+(aq) + 4 e-

The number of moles of oxygen gas produced is half the number of moles of

electrons

passed:

0.0629 / 2 = 0.0315 moles of O2

Therefore, 0.0315 moles of

oxygen

gas were produced at the anode during the same

time period

.

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The chloride or the bromide ion is solvated faster in methanol.

Depending on their polarity, solvents can behave as nucleophiles or electrophiles. The solvent molecule participates in the breaking of a bond in the solute molecule and acts as a reactant in a solvolysis reaction.

Other types of molecules, such as halogenated hydrocarbons, can also undergo solvolysis reactions in which the solvent molecule, such as water or alcohol, can function as an electrophile and attack the carbon-halogen bond, resulting in the production of a new product.

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Answer: 5.248

Explanation: 0.53/0.1010 = 5.24752475248, and round to the thousandths.