What is the mole ratio between NH3 and H2O in the following reaction:
4NH3(g)+ 6NO(g)----->5N2(g) +6H2O(l)

Answer:

a group of unicellular microorganisms

Answer:

bacteria are a type of biological cell,they constitute a large domain of prokaryotic microorganisms,single celled. The cells are all prokaryotic . This means they do not have a nucleus or any other structures which are surrounded by membranes . ... Bacteria also have small, closed-circles of DNA called plasmids present in their cytoplasm

Explanation:

According to the Bohr model, electrons orbit the nucleus at constant energies then the speed of the electron is I = 1.05 mA.

The Bohr model, also known as the Rutherford-Bohr model, was first proposed by Niels Bohr and Ernest Rutherford in 1913 and describes an atomic system with an orbiting system of electrons and a small, dense nucleus that is similar to the Solar System in structure but is attracted by electrostatic forces rather than gravity.

Speed of electron = v = 2.19 × 1\($$0^6\)  m/s

Radius of circular path = \($\gamma\) = 5.29 × 1\(0^{11}\) m

The period of electron Pn its orbits is,

T = 2π\(\gamma\) / V

To find the current represented by the orbiting electron

I (ΔQ/Δf) = |e|/T = |e|V /2πr

substitute the value in the above equation, we get

\($I=\frac{\left(2.19 \times 10^6\right)\left(1.60 \times 10^{-19}\right)}{2(8.14)\left(5.29 \times 10^{-11}\right)} \\\)

simplifying the equation, we get

I = 1.75 × 10-³  C/s

I = 1.05 mA

Therefore, the speed of the electron is I = 1.05 mA.

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Taking into account the reaction stoichiometry, 165 moles of Al are required to produce 495.0 grams of H₂.

In first place, the balanced reaction is:

6 NaOH + 2 Al  → 2 Na₃AlO₃ + 3 H₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by reaction stoichiometry 6 grams of H₂ are produced by 2 moles of Al, 495 grams of H₂ are produced by how many moles of Al?

moles al Al= (495 grams of H₂×2 moles of Al) ÷6 grams of H₂

moles of Al= 165 moles

Finally, 165 moles of Al are required.

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6.94 is much more closet to 7.016, so Li 7 is more abundant

The specific heat capacity of water is 4.2 joules per gram per degree Celsius or 1 calorie per gram per degree Celsius.

Santiago learns that one of the most important texts in the literature of alchemy contains only a few lines and is inscribed on something called the emerald tablet .

it refers to a writer's deliberate use of alchemical subject matter , terminology and process as a useful organizing principle for his or her text, especially when writing about individuals undergoing trials and changes as they mature .

there are three types of alchemy : sulfur , mercury , salt .

Emerald tablet :

it is also known as the Smaragdine tablet  .

it is highly regarded by Islamic and European alchemists as the foundation of their art .

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Answer:

Here is your answer: Tin,

Explanation:

Which of the following elements probably has the most properties in common with lead (Pb)? Tin (Sn).

Answer:

tin (Sn), hope this helps!

The enthalpy of the reaction as written is approximately 239,306 J/mol.

To calculate the enthalpy of the reaction, we need to use the heat released (2330 J) and the amount of sodium reacted (0.224 g) to determine the heat released per mole of sodium reacted.

The molar mass of sodium (Na) is 22.99 g/mol.

First, we need to calculate the number of moles of sodium reacted:

Number of moles of Na = Mass of Na / Molar mass of Na

Number of moles of Na = 0.224 g / 22.99 g/mol ≈ 0.00974 mol

Next, we can calculate the enthalpy change (ΔH) per mole of sodium reacted:

ΔH = Heat released / Number of moles of Na

ΔH = 2330 J / 0.00974 mol ≈ 239306 J/mol

Enthalpy (H) is a thermodynamic property that represents the total heat content of a system at constant pressure. It includes the internal energy of the system plus the product of pressure and volume. Enthalpy is often used to describe heat changes in chemical reactions, where the difference in enthalpy between the reactants and products determines whether a reaction is exothermic (releases heat) or endothermic (absorbs heat). Enthalpy is typically measured in joules (J) or kilojoules (kJ).

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The statement the genetic code of all living organisms is universal explains why some microorganisms have the ability to repair a malfunctioning gene by using the human version of the gene (Option C).

The genetic code is a set of instructions to encode protein by using specific triplets of nucleotides or codons, which indicate particular amino acids that will be added during translation.

Therefore, with this data, we can see that the genetic code is a group of instructions to produce proteins that are conserved in the tree of life.

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The biosynthesis of cholesterol is a complex process that involves multiple steps and intermediates. The pathway starts with acetyl CoA, which is converted to HMG-CoA by the enzyme HMG-CoA reductase. Mevalonate is then formed by the action of several enzymes. The next intermediates are isopentenyl pyrophosphate, geranyl pyrophosphate, and farnesyl pyrophosphate, which are formed by the condensation of several molecules of isopentenyl pyrophosphate.

Finally, lanosterol is formed from squalene through several intermediate steps, which ultimately lead to the production of cholesterol. This process is tightly regulated, and any disruption in the biosynthesis of cholesterol can lead to various diseases. In the biosynthesis of cholesterol, the correct order of the first three intermediates is: acetyl CoA → HMG-CoA → mevalonate.
The next three intermediates, in the correct order, are: isopentenyl pyrophosphate → geranyl pyrophosphate → farnesyl pyrophosphate.
The remaining intermediates to form cholesterol are: squalene → squalene epoxide → lanosterol → cholesterol.

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Approximately 1.693 grams of calcium will be produced when 4.7 grams of calcium chloride are completely used up in the reaction.

To determine the grams of calcium produced, we need to calculate the molar ratio between calcium chloride (CaCl2) and calcium (Ca) in the balanced chemical equation for the reaction. The balanced equation is:

2Al + 3CaCl2 → 3Ca + 2AlCl3

From the balanced equation, we can see that for every 3 moles of calcium chloride, 3 moles of calcium are produced. We need to convert the given mass of calcium chloride (4.7 grams) to moles using its molar mass.The molar mass of CaCl2 is calculated by adding the atomic masses of calcium (Ca) and chlorine (Cl). The atomic mass of calcium is 40.08 g/mol, and the atomic mass of chlorine is 35.45 g/mol.

Molar mass of CaCl2 = (40.08 g/mol) + 2(35.45 g/mol) = 110.98 g/mol

Now we can calculate the moles of calcium chloride:

Moles of CaCl2 = (mass of CaCl2) / (molar mass of CaCl2)

              = 4.7 g / 110.98 g/mol

              ≈ 0.0423 mol

Since the molar ratio between calcium chloride and calcium is 3:3, the moles of calcium produced will be equal to the moles of calcium chloride used.

Moles of Ca = 0.0423 mol

To convert moles of calcium to grams, we multiply by the molar mass of calcium:

Mass of Ca = (moles of Ca) × (molar mass of Ca)

          = 0.0423 mol × 40.08 g/mol

          ≈ 1.693 g

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Answer:

According to the numbers 1-5;Aluminium,Mercury,Oxygen,Stainless Steel,Hydrogen gas.

Explanation:

Answer:

Option A

Explanation:

The atomic number is the number of protons in the nucleus of an atom.

The rate of effusion of ammonia (NH₃) in the same apparatus is 63.3 cm/min

This states that the rate of diffusion of a gas is inversely proportional to the square root of the molar mass i.e

R ∝ 1/ √M

R₁/R₂ = √(M₂/M₁)

R₁/R₂ = √(M₂/M₁)

43.2 / R₂ = √(17 / 36.5)

Cross multiply

43.2 = R₂ × √(17 / 36.5)

Divide both side by √(17 / 36.5)

R₂ = 43.2 / √(17 / 36.5)

R₂ = 63.3 cm/min

Thus, the rate of effusion of ammonia is 63.3 cm/min

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As the forces of attraction are greater in solids than in liquids , volume of liquids is determined by graduated cylinder while that of solid is obtained by multiplying it's dimensions.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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A calcium ion will have a positive charge when it loses an electron. If it loses 2 electrons, the calcium ion will have 18 electrons and a 2+ charge.

In order to meet its octet rule on what would eventually become the new valence shell, the calcium atom, which currently has two valence electrons, must lose both of them. Consequently, it has a 2+ charge. Calcium contains 20 protons but only 18 electrons since it lost two electrons. As a result, calcium has a charge of 2+, making it a positive ion. With 20 protons and 20 electrons, a neutral calcium atom easily loses two electrons. A cation with 20 protons, 18 electrons, and a 2+ charge is the consequence of this. It is represented by the formula Ca2+ and has the same number of electrons as atoms of argon, the previous noble gas.

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That oil sands executive is greedy and heartless and therefore can't be trusted when she claims is Ad hominem attack. So, Option B is correct.

4-  The argument in question 4 is an example of an ad hominem attack. This is due to the argument's focus on the character of the oil sands executuive rather than the actual problem, which is how to improve the company's environmental record.

The argument holds that the executive cannot be believed when she says she wants to improve the company's environmental record because she is avaricious and callous. This is an error in logic, though, as the executive's character may not necessarily be related to the company's environmental policies.

5-  The argument in question 5 is an example of an appeal to ignorance. This is because the argument states that there is no proof that humans are causing climate change, so it must be natural causes. Just because there is no conclusive proof that humans are causing climate change, it does not mean that they are not.

The argument assumes that just because there is no evidence to the contrary, the argument must be true. This is a logical fallacy.

So, Option B is correct.

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The boiling-point elevation in the question is 0.152 °C.

Boiling-point elevation refers to the difference between the boiling point of a solvent in a pure state and the boiling point of the solvent in a solution. It is determined by subtracting the boiling point of the pure solvent from the boiling point of the solvent in a solution that contains a solute. Boiling point elevation depends on the molality of the solution (the concentration of the solution in moles of solute per kilogram of solvent), and the boiling-point elevation constant of the solvent (Kb).The boiling-point elevation is given by the formula:

ΔTb = Kbm

Where

ΔTb = boiling-point elevation

Kb = boiling-point elevation constant

m = molality of the solution

Therefore, we can calculate the boiling-point elevation using the formula above. In this case:

Mass of sucrose, C12H22O11 = 50.0 g

Mass of water, H2O = 500.0 g

Molar mass of sucrose, C12H22O11 = 12(12.01) + 22(1.01) + 11(16.00) = 342.3 g/mol

The number of moles of sucrose = Mass / Molar mass = 50.0 g / 342.3 g/mol= 0.146 molmolality,

m = moles of solute / kg of solvent= 0.146 mol / 0.500 kg= 0.292 mol/kg

The boiling-point elevation constant of water, Kb = 0.52 °C/m

Therefore, the boiling-point elevation is:

ΔTb = Kbm= 0.52 °C/m x 0.292 mol/kg= 0.152 °C

So, the boiling-point elevation is 0.152 °C.

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Answer:

1. The organism becomes ill or may die.

2. Pathogens.

Explanation:

(1) When an organism fails to maintain homeostasis, the organism typically becomes ill, and they will die if homeostasis cannot be re-achieved.

(2) A pathogen is a virus that can cause diseases.

The correct answer is:Only statements 1 and 2 are correct.

1) The bond is planar.

2) There is free rotation about the carbonyl carbon and nitrogen bond.

The bond is planar: True, Peptide bond is a planar bond because it is composed of a double bond between the carbonyl carbon and nitrogen, and the atoms on either side of the double bond are sp2 hybridized. There is free rotation about the carbonyl carbon and nitrogen bond: True, the peptide bond between amino acids in a protein is a single bond, which allows for rotation about the bond, this is one reason proteins can adopt many different conformations.There is substantial double-bond character to this bond: False, the peptide bond is actually a single bond, although it has some double-bond character, it is not a double bond.There is a net negative charge on nitrogen and net positive charge on oxygen: False, both nitrogen and oxygen atoms in a peptide bond are neutral, as there is no charge separation in the bond.

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Butanethiol, C4H8S, a smelly substance, is present in skunk spray. To the nearest full percent, the sulphur content of this chemical is 36% by mass.

In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the force applied. The quantity of matter that makes up every object or body is indeed the greatest way to understand mass. Everything that we're seeing has mass. Examples of objects with weight include a table, a seat, an mattress, a football, a tumbler, and even air. The weight of a thing determines whether it is light or heavy.

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3D view of H3O+

The stronger line means that the Hydrogen is closer to us in a 3D view, meanwhile the line with traces, or you cal also see as a weaker line, it means that the Hydrogen is farther from us in a 3D view

Lewis Structure of H3O+

Answer: 5 all of the above

Explanation:

A mutation can be a blessing or a curse. It can also have no effect on the person at all.

Hope this helps

When the temperature of a liquid is decreased, vapour pressure of the liquid is also decreased as a result.

A substance's physical characteristic is vapour pressure. It is based on how quickly the chemicals evaporate and condense.The pressure of a system is directly proportional to its temperature, according to Gay Lussac's Law.

P∝T

As a result, the temperature raises the system's molecules' kinetic energy. As a result, the system's vapour pressure is likewise raised.

Therefore, When the temperature of a liquid is decreased, vapour pressure of the liquid is also decreased as a result.

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False. Infants do need omega-3 sources for their development, particularly for the growth and development of their brain and eyes. Omega-3 fatty acids are essential for healthy brain function and development in infants.

Breast milk is a rich source of omega-3 fatty acids, and it is recommended that mothers consume enough omega-3 fatty acids during pregnancy and breastfeeding to support their infant's development. Omega-3 fatty acids can also be found in some infant formulas. While omega-3 fatty acids are important for preventing cardiovascular disease in adults, they serve many other functions in the body, including supporting healthy brain development in infants.
In conclusion, it is false that infants don't need omega-3 sources. Omega-3 fatty acids are essential for the development of their brain and eyes. Mothers should ensure they consume enough omega-3 fatty acids during pregnancy and breastfeeding, and some infant formulas contain omega-3 fatty acids as well. While omega-3 fatty acids are also important for preventing cardiovascular disease in adults, they serve many other vital functions in the body.

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Answer:

your answer would be C.

Explanation:

Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied. sorry if im wrong.

Answer: It’s called a alpha particle

Explanation:

Answer:

b. biosphere

do to the plant being a plant it is in the biosphere

Explanation:

The answer is the Golgi body