State two things, chemical or physical, that would happen in a saponification reaction if the triglyceride is the limiting reactant.
Name a couple of triglycerides in a saponification reaction.
How is one way to safely determine that the triglycerides is the limiting reactant in the bar of a soap?

Explanation:

1st question answer true

2nd question low resistance

hope it helps

Answer:

We can't see the options so we don't know what we can put

Explanation:

Answer:

Combination or Synthesis

Explanation:

It is a combination because 2 reactants are combining together to form the product.

The silver coating on the spoon is produced. When electrolyzing a spoon made from iron with silver, the anode, cathode, and electrolyte that can be used are as follows:

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After the mixture of the given mass of ice and water exchange heat, and ice is removed at 0°C, the mass of ice that has melted is equal to 42 g.

The answer is option(D)

We will be using the principles of heat transfer to solve this question.

The two main ideas, based on which heat transfer problems are solved, are given below.

       Q = m*s*Δt

       Q = Heat Energy, in J

      m = mass of the sample, in g

       s = Specific Heat Capacity, in J/g.°C

       Δt = change in temperature, in °C

        (We assume that heat energy is not converted into other forms in             such ideal cases)

Now combining the principles, we can make a modified equation as follows.

m₁*s₁*Δt₁ = m₂*s₂*Δt₂

Heat Lost  = Heat Gained

(**Note that both heat lost and the heat gained are absolute values, and thus in case of a negative answer, apply modulus to avoid errors)

We would also require the formula for the Latent Heat of Fusion lost by ice in this case.

Heat lost = m * L

where L = Latent Heat Capacity of Ice, 330J/g

For the question, we assume that due to the mixture of ice and water, the final temperature of the mixture would be a temperature T, which in this case is 0°C.

Heat lost by water = Heat gained by the ice

| 100g * 4.2 (J/g.°C) * (0 - 33)° | = | m * 330 |

|420 * -33 | = 330m

420 * 33 = 330m

m = 420 * (33/330)

m = 42g

Thus, about 42g of ice got melted during the exchange of heat energy in the mixture.

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The mass of ice that is melted is 42 g.

Mass of the water, m₂ = 100 g

Initial temperature, T₁ = 33°C

Final temperature, T₂ = 0°C

Specific heat capacity of water, C = 4.2 J/g°C

Latent heat of fusion of ice, L = 330 J/g

The quantity of heat energy needed per unit of mass to increase the temperature of a substance is known as its specific heat capacity. Among a material's physical characteristics is its specific heat capacity.

According to the principle of calorimetry,

The heat gained by the ice = heat lost by the water

m₁L = m₂CΔT

Therefore, the mass of ice that is melted is,

m₁ = m₂CΔT/L

m₁ = 100 x 4.2 x 33/330

m₁ = 420/10

m₁ = 42 g.

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The elements would most likely attain a noble-gas configuration of He, Ne, Ar, or Kr. The appropriate elements for their respective bins are Se would gain two electrons to attain a noble-gas configuration of Kr. Sr would lose two electrons to attain a noble-gas configuration of Kr.

Noble gases are the most stable elements because their outermost electron shells are fully occupied, which is what the other elements aim to achieve. Noble gas configuration is the electron configuration of noble gases, which are the most stable elements. The electron configuration of the nearest noble gas is achieved by adding or removing electrons from the atom. Each of the seven periods in the periodic table corresponds to a specific block of the periodic table. The 1s block is called the first period, the 2s2p block is the second period, and so on.

The elements Li, Al, O, P, K, Se, and Sr belong to different blocks of the periodic table, so they each have different electron configurations.

The electron configurations of Li, Al, O, P, K, Se, and Sr are 1s2 2s1, [Ne] 3s2 3p1, [He] 2s2 2p4, [Ne] 3s2 3p3, [Ar] 4s1, [Ar] 3d10 4s2 4p4, and [Kr] 5s2, respectively.

To achieve a noble-gas configuration, these elements would lose or gain electrons as follows: Li would lose one electron to attain a noble-gas configuration of He. Al would lose three electrons to attain a noble-gas configuration of Ne. O would gain two electrons to attain a noble-gas configuration of Ne.

P would gain three electrons to attain a noble-gas configuration of Ar. K would lose one electron to attain a noble-gas configuration of Kr.

Se would gain two electrons to attain a noble-gas configuration of Kr. Sr would lose two electrons to attain a noble-gas configuration of Kr.

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The appearance of the protist differ from that of the onion sample due to the presence of motile structures.

This is an eukaryote which could be unicellular or multicellular and examples include protozoa etc.

The major difference between a protist and onion sample is that protists have motile structures such as flagella, cilia etc while plant cells such as onions don't have.

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Answer:

your answer is 8000 ppm

The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.

The term nitrogen balance refers to the fact that there is a balance between the intake and the loss of nitrogen. The intake of nitrogen occurs when a person takes in food that contain proteins which are a rich source of nitrogen in the body and helps in the process of the build up of the cells in the body.

The period of the life cycle during which positive nitrogen balance is most likely to occur is childhood.

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Psychoanalysis is a measure that does not assess nutritional status.

Nutritional status reflects the health of the person as a function of the nutrients in his/her diet. Through a clinical examination and dietary recall, we can figure out if the person is eating enough in terms of build and nourishment, 24-hour meal recall, social status, etc. Biochemical examinations are used to confirm the clinical findings or even discover malabsorption states. .

Psychoanalysis is diving deep into the mental status of the patient. Asking about how they feel, relevant past experiences, and current state is done. But this has nothing to do with the nutritional status of the person.

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Answer:

c

Explanation:

c is correct i believe

There are 3.04 moles of Zn in 1.83 × 10²⁴ Zn atoms.

Zinc (Zn) is the chemical element having symbol Zn and atomic number 30. It is a bluish-white metal that is relatively soft, malleable, and ductile. Zinc is a moderately reactive metal that readily combines with oxygen and other non-metals, but does not react with water or acids in the same way as more reactive metals such as sodium or magnesium.

To determine the number of moles of zinc (Zn) in 1.83 × 10²⁴ Zn atoms, we need to use Avogadro's number, which relates the number of atoms to the number of moles:

1 mole = 6.022 × 10²³ atoms

We can use this relationship to convert the number of atoms to moles as follows:

Number of moles =Number of atoms/Avogadro's number

Number of moles of Zn = 1.83 × 10²⁴ / 6.022 × 10²³

Number of moles of Zn = 3.04

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For Iron :

n Fe = m Fe / Mr Fe

n Fe = 540 / 55.85

n Fe = 9.67 mol

n Fe₂O₃ = (2/4) • 9.67

n Fe₂O₃ = 4.83 mol

For Oxygen :

n O₂ = m O₂ / Mr O₂

n O₂ = 400 / 32

n O₂ = 12.5 mol

n Fe₂O₃ = (2/3) • 12.5

n Fe₂O₃ = 8.33 mol

Fe is the limiting reactant

Answer: possibly diffusion

Explanation:

all particles are in motion unless at a certain degree so they'd spread throughout the room diluting as they continue to spread out.

Reverse direction: Reaction is not spontaneous; reactants favored at 25°C.

To calculate ΔS°rxn, we can use the following equation:

ΔG°rxn = -RTlnK

where R is the gas constant (8.314 J/mol*K), T is the temperature in Kelvin (298 K), K is the equilibrium constant, and ΔG°rxn is the standard Gibbs free energy change for the reaction.

Since ΔG°rxn = ΔH°rxn - TΔS°rxn, we can rearrange the equation as:

ΔS°rxn = (ΔH°rxn - ΔG°rxn) / T

We are given ΔH°rxn as -44.2 kJ, so we need to calculate ΔG°rxn and then use the equation above to find ΔS°rxn.

To calculate ΔG°rxn, we can use the following equation:

ΔG°rxn = ΣnΔG°f(products) - ΣnΔG°f(reactants)

where ΔG°f is the standard Gibbs free energy of formation of each compound, n is the number of moles of each compound in the balanced chemical equation, and the values are given in the table of thermodynamic properties.

For the given reaction, the equation becomes:

ΔG°rxn = [ΔG°f(C2H5OH) - ΔG°f(C2H4) - ΔG°f(H2O)] = [-277.6 - (2*68.3) + (-237.1)] = -39.9 kJ

Now we can substitute the values we have calculated into the equation for ΔS°rxn:

ΔS°rxn = (-44.2 kJ - (-39.9 kJ)) / (298 K) = -0.014 J/K

Since ΔS°rxn is negative, the reaction is not spontaneous at 25°C and standard pressure in the direction as written. However, we can use the Gibbs free energy equation to determine in which direction the reaction will be spontaneous:

ΔG°rxn = -RTlnK

For a spontaneous reaction, ΔG°rxn must be negative, which means that lnK must be negative. Since lnK is negative, K must be less than 1, which means that the reactants are favored at equilibrium. Therefore, the reaction will proceed in the reverse direction as written (i.e. from C2H5OH to C2H4 and H2O) at 25°C and standard pressure.

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A local neuron can transmit information in both directions, receiving input from upstream neurons and transmitting output to downstream neurons.

A local neuron transmits information in both directions. Neurons are the fundamental building blocks of the nervous system and are responsible for transmitting electrical signals, known as action potentials, between different parts of the body.

Within a local circuit or neural network, information flow can occur in multiple directions. Neurons receive input signals from other neurons through their dendrites, which are the branching structures that extend from the cell body. These input signals can come from neurons located both upstream and downstream in the neural network.

Once the input signals are received, the neuron integrates them in its cell body and generates an output signal, known as an action potential, which travels along the axon, a long fiber-like extension of the neuron. The axon may branch out and make connections with other neurons, forming synapses, where the action potential can be transmitted to other neurons.

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A local neuron, also known as an interneuron, can transmit information in both directions within a specific neural circuit.

A local neuron, also known as an interneuron, is a type of neuron that connects other neurons within a specific region of the nervous system. These neurons play a crucial role in processing and integrating information within the local circuit.

Local neurons can transmit information in both directions, depending on the specific circuit they are a part of. They receive input from other neurons through their dendrites, which are the branched extensions of the neuron. This input can come from sensory neurons, other interneurons, or even motor neurons.

Once the local neuron receives the input, it integrates and processes the information in its cell body and then transmits the output through its axon. The axon of a local neuron can extend in different directions, allowing it to transmit information to other neurons within the local circuit.

Therefore, the direction of information transmission in a local neuron can vary depending on the specific connections it forms within the neural circuit.

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Answer: CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2

Explanation:

Question 5

Answer

D - 7.15 g O2

Explanation

Given:

Balanced chemical equation:

mass of Cr = 15.5 g

Required: mass of Oxygen

Solution:

Step 1: Find the moles of Cr

n = m/M where n is the number of moles, m is the mass and M is the molar mass

n = 15.5 g/51,9961g/mol

n = 0.298 mol

Step 2: Use stoichiometry to find the moles of O

The molar ratio between Cr and O is 4:3

Therefore the number of moles of O = 0.298 x (3/4) = 0.224 mol

Step 3: From the moles, we can find the mass of O

m = n x M

m = 0.224 x 31.998

m = 7.168 g which is closer to D = 7.15 g

The purpose of the sodium bicarbonate in the isolation step is the neutralize and the unreacted carboxylic acid. The gas was evolved during the reaction is CO₂. The balanced equation for the reaction is :

NaHCO₃  +  HCl   --->  NaCl  +   H₂O  +  CO₂

The Sodium bicarbonate is NaHCO₃ which is used to the neutralize the unreacted carboxylic acid or the catalyst  that is concentrated sulfuric acid is which are dissolved in the layer of organic substance.

The reaction of the sodium bicarbonate with hydrochloric acid is as :

NaHCO₃  +  HCl   --->  NaCl  +   H₂O  +  CO₂

The  gas was evolved during the chemical reaction is the carbon dioxide, CO₂.

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50.5 km to ft is 165682.4

Answer:

the other guy is right its 165682.415

Answer:

Thus, the required heat is 79kJ 79 k J .

Explanation:

i think its the right bottem one

Sublimation is an effective technique for the isolation of pure caffeine because: The purified caffeine will vaporize and can be collected as a solid, leaving impurities behind.

So, the answer is B.

Sublimation is a chemical technique that is used to isolate the pure form of a substance from impure or mixed form. It is the phase transition of a solid directly to a gas without passing through a liquid phase.

It is an effective technique for the isolation of pure caffeine due to the following reasons:During sublimation, the purified caffeine will vaporize and can be collected as a solid, leaving impurities behind.

The caffeine is heated, and the heat causes the solid to vaporize directly from the solid phase to the gas phase, skipping the liquid phase. Thus, it separates the caffeine from impurities and provides pure caffeine. Therefore, option B is correct.

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The rate constant of the reaction is approximately 0.208 M\(^(-1)\) s\(^(-1)\), with units of M\(^(-1)\) s\(^(-1)\).

To determine the rate constant of the reaction, we can use the rate equation:

rate = k\([A]^m[B]^n\)

From the given data, we can observe that in the first and second trials, the concentrations of reactant A ([A]) remain constant while the concentration of reactant B ([B]) doubles. This indicates that the reaction is first-order with respect to reactant B.

In the first and third trials, the concentration of reactant B remains constant while the concentration of reactant A doubles. This implies that the reaction is also first-order with respect to reactant A.

Since the rate remains the same for both trials (0.0171 M/s), the rate constant (k) must be the same for both trials. Therefore, we can use either trial to calculate the rate constant.

Using the first trial:

0.0171 M/s = k * (0.330 M)¹ * (0.260 M)¹

Simplifying the equation:

k = 0.0171 M/s / (0.330 M * 0.260 M)

k ≈ 0.208 M\(^(-1)\) s\(^(-1)\),

Therefore, the rate constant of the reaction is approximately 0.208 M\(^(-1)\) s\(^(-1)\), with units of M\(^(-1)\) s\(^(-1)\).

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Answer:

N2O3

Explanation:

The empirical formula of a compound can be calculated as follows:

N = 36.86% = 36.86g

O = 63.14% = 63.14g

First, we divide each value by its molar mass as follows:

N = 36.86g ÷ 14g/mol = 2.63mol

O = 63.14g ÷ 16g/mol = 3.95mol

Next, we divide by the smallest mole value;

N = 2.63mol = 2.63 = 1

O = 3.95mol ÷ 2.63 = 1.5

We multiply each value by 2 to get an approximate whole number ratio i.e. N = 2, O = 3

Answer: hope this helps :)

Explanation:

Heterogeneous:

soy sauce, pizza, fruit salad, halo halo, iced mango juice (assuming this is a mango milkshake), sago milk tea

Homogeneous:

vinegar, salt solution, sugar syrup

abno ka hahaha hatdog hamburger

Answer:

Jay Bennett

Fentanyl

Opioid

extreme happiness, drowsiness, nausea, confusion, constipation, sedation, tolerance, addiction, respiratory depression and arrest, unconsciousness, coma, and death.

In Urine

Why did Jay overdose on Fentanyl?

Explanation:

I looked all of this up

Considering the definition of density and intensive and extensive properties, the density of each piece of gold is 19.3 \(\frac{g}{cm^{3} }\)

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space. In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

Intensive properties are those that will remain unchanged even though the amount of matter varies, while extensive properties vary depending on the amount of matter in a body.

Density is an intensive property, so it is independent of the sample size. This is because the solute will be present in a certain proportion with respect to the solvent. That ratio will not change unless more solute or more solvent is added. Consequently, the concentration remains constant (concentration is an intensive property) and density too.

Finally, the density of each piece of gold is 19.3 \(\frac{g}{cm^{3} }\)

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Answer:

NiC2N2

Explanation:

Dipole-induced dipole forces must be overcome between br2 when liquid br2 dissolves into ethanol.

In contrast to C2H5OH, which is a very polar molecule, bromine is non-polar and has zero dipole moment. Charges are separated within polar molecules.

When a nonpolar Br2 molecule interacts with a polar C2H5OH molecule, one half of the bromine molecule acquires a charge and the other half acquires an opposing charge. A dipole is created when two adjacent bromine molecules have different charges. Bromine molecules must thus overcome the intermolecular forces—also known as dipole-induced dipole forces—that form in order to dissolve in ethanol.

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