during an experiment, 15 g of n2 was reacted with excess h2 gas. the mass of nh3 produced was 14 g. calculate the percent yield.

Answer:

both the original and the new genes

Explanation:

Answer:

6 liquids

Explanation:

because yea

Graduated cylinder is used for accuracy

Answer:

it is Gas

Explanation:

that is the correct answer

i hope i helped

Answer:

-

Alcohol-related diseases frequently cause low Mg+ levels.

- Mg+ deficiencies must be treated before potassium (K+) deficiencies.

- Mg+ deficiencies often result in low serum potassium (K+)

- Mg++ levels present similarly to calcium (Ca++) levels in the blood.

- Vomiting is not generally seen as a major cause of Mg+ loss

If you have a hydrocarbon with 17 carbons, it will take 34 hydrogens to be fully saturated.

A hydrocarbon is an organic molecule composed completely of hydrogen and carbon in organic chemistry. Group 14 hydrides include hydrocarbons. Hydrocarbons are often colorless and hydrophobic, with scents that are weak or exemplified by gasoline and lighter fluid.

They exist in a wide range of molecular forms and phases, including gases (like methane and propane), liquids (like hexane and benzene), low melting solids (like paraffin wax and naphthalene), and polymers (such as polyethylene and polystyrene). Hydrocarbon refers to naturally occurring petroleum, natural gas, and coal, as well as their hydrocarbon derivatives and refined forms, in the fossil fuel industry. The primary source of energy on the planet is the combustion of hydrocarbons.

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The three step for the synthesis of 3-bromocyclopentene are: bromination, reaction with tert-butoxide and at last reaction with ester.

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Answer:

1. HCL, NaI

2. NaCl, KCl

3. CCl4

4. Has a high pH

Explanation:

1. water is polar, and like dissolves like

Hydrochloric acid (HCL) is polar therefore it will dissolve in water

Sodium Iodide (NaI) is also polar therefore it will dissolve in water

Ethane (C2H6) Is non-polar therefore it won't dissolve in water

Oil Is non-polar therefore it won't dissolve in water

2. Same as number 1, because water is polar, the substance has to be polar as well to dissolve in it

Carbon tetrachloride (CCl4) is non-polar therefore it won't dissolve in water

Sodium Chloride (NaCl) is just a fancy name for table salt, what you season food with, it is also Polar therefore it will dissolve in water

Methane (CH4) is non-polar gas, at a normal concentration it won't dissolve in water, at a low enough concentration meeting the correct requirements it can dissolve but for the purpose of your question it will not

Potassium chloride (KCl) is polar therefore it will dissolve in water

3. Gasoline is non-polar therefore non-polar substances will dissolve in gasoline

Carbon tetrachloride (CCl4) is non-polar therefore it will dissolve in gasoline

Sodium Chloride (NaCl) is just a fancy name for table salt, what you season food with, it is also Polar therefore it won't dissolve in gasoline

Sodium hydroxide (NaOH)  is very polar therefore it won't dissolve in gasoline

Potassium chloride (KCl) is polar therefore it won't dissolve in gasoline

4. Not a characteristic of an acid

An acid is a proton donor therefore it can't be that

An acid has a pH value of less than 7 therefore it can't be that either

Based on our previous statement we know that this has to be our answer- Has a high pH

AN acid donates Hydrogen ions which is the same as releasing Hydrogen ions

Answer:

A mid-ocean ridge is a seafloor mountain system formed by plate tectonics. It typically has a depth of ~ 2,600 meters and rises about two kilometers above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary.

Answer:

A mid-ocean ridge is a seafloor mountain system formed by plate tectonics. It typically has a depth of ~ 2,600 meters and rises about two kilometers above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary.

I hope it's helpful!

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, by transferring electron or sharing electrons,  particles combine to form the variety of matter.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. By transferring electron or sharing electrons,  particles combine to form the variety of matter.

Therefore, by transferring electron or sharing electrons,  particles combine to form the variety of matter.

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The reaction is likely spontaneous only at high temperatures. The correct answer is option B) spontaneous only at high temperature.

For the reaction C2H6 (g) → C2H4 (g) + H2 (g), the given values are ΔH° = +137 kJ/mol and ΔS° = +120 J/K∙mol. To determine if the reaction is spontaneous, we need to calculate the Gibbs free energy change (ΔG°) using the equation ΔG° = ΔH° - TΔS°, where T is the temperature in Kelvin.

Since ΔH° is positive, the reaction is endothermic, meaning it requires energy to proceed. Meanwhile, ΔS° is positive, indicating an increase in disorder or entropy. The sign of ΔG° will determine if the reaction is spontaneous or not. If ΔG° is negative, the reaction is spontaneous; if ΔG° is positive, the reaction is nonspontaneous.

Considering the given ΔH° and ΔS° values, as temperature (T) increases, the TΔS° term will become more significant. If T is high enough, the TΔS° term may overcome the positive ΔH° value, resulting in a negative ΔG° and a spontaneous reaction. On the other hand, at low temperatures, the TΔS° term is less significant, and ΔG° may remain positive, resulting in a nonspontaneous reaction.

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The spontaneity of a reaction can be determined by the Gibbs free energy equation: ΔG° = ΔH° - TΔS°. If ΔG° is negative, the reaction is spontaneous.

Using the given values, ΔG° = +137 kJ/mol - (298 K)(+120 J/K ∙ mol)/1000 = +98.84 kJ/mol. Since ΔG° is positive, the reaction is nonspontaneous at all temperatures. Therefore, the answer is D) nonspontaneous at all temperatures.

The Gibbs free energy is a measure of the maximum amount of reversible work that can be extracted from a system at constant temperature and pressure. If ΔG is negative, the process is spontaneous and can occur without the input of external energy. If ΔG is positive, the process is non-spontaneous and requires the input of energy to occur. If ΔG is zero, the system is in equilibrium. The Gibbs free energy equation is a fundamental equation in thermodynamics that relates the enthalpy (H), entropy (S), and temperature (T) of a system to its Gibbs free energy (G). The equation is given as:

ΔG = ΔH - TΔS

In this equation:

ΔG represents the change in Gibbs free energy.

ΔH represents the change in enthalpy (heat content) of the system.

ΔS represents the change in entropy (disorder) of the system.

T represents the temperature in Kelvin.

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The formula for calculating the pH of a solution is expressed as:

Given the following parameter

pH =. 6.36

Substitute

Determine the concentration of [OH-] in the solution

Beryllium would react with chlorine in the same ratio as copper (-2).

When beryllium reacts with chlorine gas, it forms beryllium chloride (BeCl2). Balanced chemical equation for this reaction:

Sodium and gallium do not react with chlorine in the same ratio as copper (-2).

Sodium reacts with chlorine gas to form sodium chloride (NaCl). Balanced chemical equation for this reaction:

Gallium does not react with chlorine under normal conditions. Gallium is a liquid with a silvery-white hue at ambient temperature. Ingestion of this substance may be harmful. Aluminum corrodes in its presence.

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Answer:

Explanation:

The correct statement about this cell is:

A) Electrons travel in the external circuit from zinc to lead.

This is because the electrode potential of zinc is lower than that of lead. In a galvanic cell, the electron flow goes from the negative electrode (anode), which is where oxidation occurs, to the positive electrode (cathode), where reduction occurs. In this case, the anode is the zinc electrode and the cathode is the lead electrode. Since the zinc electrode has a more negative electrode potential, it is where oxidation occurs and electrons are released, and these electrons travel in the external circuit to the lead electrode, where reduction occurs.

Answer:

\(C=2.45\frac{J}{g\°C}\)

Explanation:

Hello there!

In this case, since the thermodynamic definition of heat in terms of mass, specific heat and temperatures is given by:

\(Q=mC(T_2-T_1)\)

We are to calculate the specific heat of the ethanol as shown below:

\(C=\frac{Q}{m(T_2-T_1)}\)

Thus, by plugging it the given data we can obtain:

\(C=\frac{4650J}{250.0g(29.6-22.00\°C)} \\\\C=2.45\frac{J}{g\°C}\)

Regards!

Is Fe+S classified as as compound

Iron and sulfur are both elements from the periodic table of elements each one has its own unique physical and chemical properties iron is a metal, and sulfur is a nonmetal. when these two are heated together, the iron atoms combine with the sulfur atoms to make a compound known as iron sulphide when iron and sulphur are mixed then the reaction is called as redox reaction or oxidation reduction reaction in that reaction Fe loses electron that is Fe is undergoing in oxidation and we know that the substance which itself undergo oxidation act as a reducing agent so in this case Fe is the reducing agent. Fe+S is a compound because compound means the substance made from two or more different element that have been chemically joined and mixture means made up of two or more chemical component that are not chemically joined called mixture so given iron sulphide is a compound.

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Phosphorous at 18.9%. According to analysis, sodium, phosphorus, and oxygen make up 42.1%, 18.9%, and 39% of sodium phosphate, respectively.

The ratio of the amounts of each element to the sum of the individual element amounts present in the compound, multiplied by 100, is the definition of the percentage of a given compound. In this instance, the quantity is expressed in grams of the constituent ingredients.

The proportional mass of each component of a compound is known as the percent composition. The mass percent of a compound is the weight of an element expressed as a share of the complex's overall mass. For instance, a molecule of water has a structure of one oxygen atom and two hydrogen atoms.

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Mg2N3  compound having general formula X2Y2  it having cation as +3 charge and bonds ionically with group 15 in a 2:3 ratio.

When two or more elements combine chemically  in a specific mass ratio, the resulting product is called a compound. Compounds can be defined as substances consisting of two or more different types of elements in a fixed ratio of their atoms.

A compound is one where  different types of atoms have joined together to form molecules. For example, water is a compound. The chemical name of water is H2O because it contains two hydrogen atoms and one oxygen atom chemically bonded together.

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Answer:

12 gal

Explanation:

474.2 mix 1 gal/39.5 mi = 12 gal

By integrating the differential equation and determining the residence time at which the conversion reaches 80%, we can find the space time needed. The goal is to minimize the percentage of error in the calculation.

To solve this problem, we need to set up and solve the differential equation for the plug flow reactor. The rate equation given is γA = 10^(-2)C^(1/2) (mol/lit bee), where γ is the reaction rate constant and C is the concentration of A.

The differential equation for the plug flow reactor can be written as:

dCA/dV = -rA

Where CA is the concentration of A, V is the reactor volume, and rA is the rate of reaction. Since the reaction is homogeneous and follows the stoichiometry A → 3R, the rate of reaction is given by:

rA = -1/3 dCA/dt

Using the chain rule, we can rewrite the differential equation as:

dCA/dV = -1/3 dCA/dt dV/dt

The volume V is related to the reactor residence time τ (space time) by:

V = F₀τ

Where F₀ is the inlet molar flow rate. In this case, the feed consists of 50% A and 50% inert, so the inlet molar flow rate is 0.0325 mol/lit * 0.5 = 0.01625 mol/lit.

Now, we can substitute the expressions for V and dV/dt into the differential equation and rearrange it as:

(1/τ) dCA/dτ = -1/3 dCA/dt

To solve this differential equation numerically, we can use a method like the fourth-order Runge-Kutta method. We start with the initial condition CA = CA₀ at τ = 0 and integrate the differential equation until the conversion reaches 80% (CA = 0.0325 * 0.5 * 0.2 = 0.00325 mol/lit).

By varying the residence time τ and checking the conversion, we can determine the residence time at which the conversion is closest to 80%. This residence time will give us the space time needed for 80% conversion.

To minimize the percentage of error in the calculation, we can adjust the step size in the numerical integration method to achieve a desired level of accuracy. Smaller step sizes generally lead to more accurate results but require more computational effort.

By implementing the numerical integration method and adjusting the step size, we can find the space time needed for 80% conversion with minimized error.

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Mr Na = 0.225 • 306 = 69 g/mol

Mr P = 0.304 • 306 = 93 g/mol

Mr O = 0.471 • 306 = 144 g/mol

coef. Na = 69/23 = 3

coef. P = 93/31 = 3

coef. O = 144/16 = 9

Molecular Formula : Na3P3O9

Answer:

Explanation:

Xenocryst is a crystal in an igneous rock that is not derived from the original magma. This means that its origin is from a rock so itʻll be something thats on a rock that has a crystal base.

i hope this helps!

The spines spear food and protect an urchin from predators.

From the skull base to the tailbone, there are bones, muscles, tendons, and other tissues. The fluid around the spinal cord and the spinal cord itself are enclosed by the spine. known by the names vertebral column, spinal column, and backbone. a strong, slender, sharp-pointed structure that resembles a modified leaf or stipule (a stipule is an appendage located at the base of a petiole, or at the base of a leaf's stalk). A pointy growth from the skin or bark is referred to as a. Thorns are modified stems that are stiff, woody, and have a sharp point. Cervical, thoracic, and lumbar spines are the three primary segments of the spine. Seven vertebrae make up the cervical, which is the top portion of the spine (bones). Centered in the body is the thoracic.

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Answer:

∴ Q = -7.52kCal

Explanation:

Using the formula for specific heat capacity:

Q = mcΔT

where ΔT = change in temperature (final - initial)  = (0 - 100)°C = -100°C

m = mass (g) = 75g

c = specific heat capacity = 4.2 J/g°C in water

⇒ Q = 75 × 4.2 × -100

= -31,500J

But 1J - 0.000239kCal

∴ Q = -7.52kCal

Let me know if I can be of further assistance.

Sun-Bleached hair.

You can't exactly pass down piano skills, they have to be taught and also you can't just be born with strong muscles, they also have to develop over time. Height can't exactly be passed down because some parents are tall and their kids come out short. That leaves the only other option to be Sun-Bleached Hair (hair color).

Hope this helps and have a nice day.

-R3TR0 Z3R0

Answer:

a changes more because it going higher

Explanation:

Answer:

They will be the same because amplitude doesn't affect speed. A physics teacher attaches a slinky to the wall and begins introducing pulses with different wavelength. The denser the medium at the compression, the greater the amplitude of the wav

Explanation:

7300 mg

7.3x10^-3 kilograms = 7300 milligrams

The final temperature of the gas is approximately 40.96 Kelvin.

To determine the final temperature of the gas, we can use the ideal gas law, which states:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles of the gas, R is the ideal gas constant, and T is the temperature in Kelvin.

First, let's convert the given temperatures to Kelvin. We have:

Initial temperature: -125 degrees Celsius = 148 K (approximate)

Final temperature: Unknown

The initial conditions of the gas are as follows:

Initial pressure (P1) = 1.25 atm

Initial volume (V1) = 1250 mL = 1.25 L (since 1 L = 1000 mL)

Initial temperature (T1) = 148 K

The final conditions of the gas are as follows:

Final pressure (P2) = 50.0 atm

Final volume (V2) = 325 mL = 0.325 L

Final temperature (T2) = Unknown

Using the ideal gas law, we can set up the following equation:

(P1 * V1) / T1 = (P2 * V2) / T2

Substituting the known values:

(1.25 atm * 1.25 L) / 148 K = (50.0 atm * 0.325 L) / T2

Simplifying the equation:

T2 = (50.0 atm * 0.325 L * 148 K) / (1.25 atm * 1.25 L)

T2 = 40.96 K

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might be gas change or colour change