Hii if you could help that would be great, if the answer is correct ill mark as brainliest :)))

B. N2 is the limiting reactant. The reactant that has the smaller number of moles in the balanced equation is the limiting reagent.

What is Limiting Reagent?

The limiting reagent is the reactant that is entirely consumed when the reaction goes to completion, and thus limits the amount of product that can be formed. The other reactants that are present in excess are not entirely consumed and do not limit the amount of product that can be formed.

To determine the limiting reactant, we need to calculate the amount of product that can be produced from each reactant and then choose the reactant that produces the smallest amount of product.

The balanced equation for the reaction is:

N2 + 3H2 → 2NH3

The molar mass of N2 is 28 g/mol, and the molar mass of H2 is 2 g/mol. Using these values, we can calculate the number of moles of each reactant:

Number of moles of N2 = 3.5 g / 28 g/mol = 0.125 mol

Number of moles of H2 = 3.5 g / 2 g/mol = 1.75 mol

According to the balanced equation, 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3. So, the number of moles of NH3 that can be produced from each reactant is:

Moles of NH3 produced from N2 = 0.125 mol × (2 mol NH3 / 1 mol N2) = 0.25 mol NH3

Moles of NH3 produced from H2 = 1.75 mol × (2 mol NH3 / 3 mol H2) = 1.17 mol NH3

Therefore, the limiting reactant is N2, since it produces a smaller amount of NH3 compared to H2.

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Answer:

Calcium nitrate, your welcome!

The spontaneous deposition of silver onto gold in a solution of AgNO3(aq) does not occur due to the difference in their reduction potentials.

Spontaneous deposition of a metal occurs when it has a lower reduction potential than the metal it is being deposited onto. In this case, gold has a lower reduction potential than silver.

The reduction potential is a measure of the tendency of a species to gain electrons and undergo reduction. Gold has a relatively low reduction potential, indicating that it has a lower tendency to gain electrons and be reduced compared to silver. On the other hand, silver has a higher reduction potential, indicating a greater tendency to be reduced and gain electrons.

In the solution of AgNO3(aq), silver ions (Ag+) are present, which can potentially be reduced to form silver atoms (Ag). However, since gold has a lower reduction potential than silver, it does not have a strong enough tendency to reduce the silver ions and replace them with gold atoms. Therefore, the silver does not spontaneously deposit onto the gold necklace.

To achieve the desired silver coating on the gold necklace, an external source of electrons or a reducing agent would be required to facilitate the reduction of silver ions onto the gold surface.

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They would combine in a 1:1 ratio with the elements of group 13.

We know that atoms are able to combine in a definite ratio so as to form compounds. This is the idea of one of the postulates of the Dalton atomic theory.

Given that we have the non metals that are in the nitrogen group as the case in point here, we have to condider the valency of the group. It is true that the group has a valency of -3 which means that they accept three electrons, they would then combine in a 1:1 ratio with an element that is a metal from group 13 that has a valency of + 3.

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When oil from a tin is poured through a funnel placed tightly into the neck of a bottle, the oil stays in the funnel because the air pressure inside the bottle prevents the oil from entering the bottle.

The force that air, whether compressed or unconfined, applies to whatever surface it comes into touch with is known as air pressure.

The air in the bottles exerts a force on the liquid that is to be poured inside it.

Since the air has no way of escaping, the oil cannot be poured into the bottle.

However, if a little space is allowed by the funnel for the air to escape, the liquid can then be poured into the bottle.

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The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.

The electrochemical cell is the cell that is capable of generating the electrical energy from the chemical reactions or by the use of the electrical energy to cause the chemical reaction. The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.  

There are the two types of the electrochemical cells is as follows : the galvanic called the electrolytic cells. the galvanic cell is also called as the voltaic cell.

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Using the provided reduction potential :

Eo cell = Eo cathode - Eo anode
Eo cell = +0.77 V - (-1.36 V)
Eo cell = +2.13 V

The overall reaction involves the reduction of chlorine gas and the oxidation of iron(II) ion:
Cl2(g) + 2Fe2+(aq) → 2Cl-(aq) + 2Fe3+(aq)
The standard cell potential can be calculated by adding the reduction potential of the half-reaction that occurs at the cathode (where reduction takes place) to the negative of the reduction potential of the half-reaction that occurs at the anode (where oxidation takes place):
Eo cell = Eo cathode - Eo anode
in this case, the cathode half-reaction is the reduction of Fe3+ ions:
Fe3+(aq) + e- → Fe2+(aq)
The reduction potential for this half-reaction is +0.77 V.
The anode half-reaction is the oxidation of Fe2+ ions:
Fe2+(aq) → Fe3+(aq) + e-
To determine the reduction potential for this half-reaction, we can use the fact that the overall reaction involves the reduction of chlorine gas. The reduction potential for Cl2(l) is +1.36 V. Since the anode half-reaction involves the oxidation of Fe2+ ions, we need to flip it and change the sign of its reduction potential:
Fe3+(aq) + e- → Fe2+(aq)    Eo = -0.77 V
2Cl-(aq) → Cl2(g) + 2e-      Eo = -1.36 V
Adding these two half-reactions gives the overall reaction, so we can add their reduction potentials to get the cell potential:
Eo cell = Eo cathode - Eo anode
Eo cell = +0.77 V - (-1.36 V)
Eo cell = +2.13 V
Rounding to 1 digit before the decimal point and 2 decimal places, the answer is:
Eo cell = +2.1 V

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Nucleophilic aromatic substitution (NAS) is a type of reaction where a nucleophile substitutes a leaving group on an aromatic ring. In the presence of a strong nucleophile and an appropriate leaving group, phenol can be formed by NAS.

However, when cyclopentadiene is used as a solvent in NAS, it can act as a nucleophile itself and react with the electrophile, which results in the formation of a cyclopentadienyl cation. The cyclopentadienyl cation can then undergo various reactions, such as rearrangements and addition reactions with other nucleophiles, depending on the reaction conditions.

Therefore, in the presence of cyclopentadiene as a solvent, instead of phenol, other products such as cyclopentadiene adducts, rearranged cyclopentadienes, or other byproducts can be formed. It is important to carefully consider the choice of solvent in NAS reactions to ensure that it does not interfere with the desired reaction mechanism and does not lead to the formation of unwanted products.

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Answer:

$182 is the value of the gold in the coin

Explanation:

Diameter is 2r, the ratio of the coin is = 1.62cm / 2 = 0.81cm

Following the formula of the volume of the coin:

V = π r² h

V = π*(0.81cm)²*0.085cm

V = 0.172cm³ = mL

As the density of the gold is 19.32g/mL, the mass of 0.1752mL of gold is:

0.1752mL * (19.32g / mL) =

3.385g is the mass of the coin

As the price of the gold is $53.90 / g, the value of the gold in the coin is:

3.385g * ($53.90 / g) =

Answer:

2180 g Cu(OH)₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

22.3 mol Cu(OH)₂

Step 2: Identify Conversions

Molar Mass of Cu - 63.55 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of Cu(OH)₂ - 63.55 + 2(16.00) + 2(1.01) = 97.57 g/mol

Step 3: Convert

\(22.3 \ mol \ Cu(OH)_2(\frac{97.57 \ g \ Cu(OH)_2}{1 \ mol \ Cu(OH)_2} )\) = 2175.81 g Cu(OH)₂

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

2175.81 g Cu(OH)₂ ≈ 2180 g Cu(OH)₂

All of these are not fit for human consumption and shouldn't be used with food, including pewter (which may include some copper, silver, or lead), copper, zinc, and galvanized goods,.

Elegant pewter pitchers are great for pouring iced coffee, crushed ice, and possibly even wine. Every single one of our handcrafted pewter pitchers is created using traditional techniques. They continue to be lead-free, just like all of your other pewter goods.

Today's pewter is safe to use and lead-free. It is mostly formed of tin, with perhaps a little amount of copper and antimony. The items have received certification stating that they are fully lead-free and safe to use with any type of food.

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Answer:

Carbon, hydrogen, nitrogen, oxygen, phosphorus,or potassium as nutrients for plants.

Explanation:

mark me as brainliest if it helped you

Carbohydrates or starch serve as nutrients for plants.

Answer:

Common properties of hydrocarbons are the facts that they produce steam, carbon dioxide and heat during combustion and that oxygen is required for combustion to take place. The simplest hydrocarbon, methane, burns as follows: CH4 + 2 O2 → 2 H2O + CO2 + energy.

Explanation:

Explanation:

ans b hcl and ccl4

both these compounds are formed by sharing of electrons......

Small particles that make up elements and compounds are known as atoms. They are the building blocks of matter. An atom is the basic unit of matter. An atom consists of three types of subatomic particles: electrons, protons, and neutrons.

The proton, which has a positive electric charge, is located in the nucleus of the atom. The neutron, which is electrically neutral, is also found in the nucleus. Electrons are the lightest subatomic particles, and they orbit the nucleus at high speeds. The number of protons in an atom is referred to as its atomic number. In turn, the atomic number determines the chemical properties of the atom and the element it represents.Elements are pure substances made up of a single type of atom, and they cannot be broken down into simpler substances by chemical means. However, elements can be transformed into other elements via nuclear processes. Compounds, on the other hand, are composed of two or more different types of atoms that are chemically combined.

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ethanol, c2h5oh, is used as a fuel for motor vehicles, particularly in brazil. the density of ethanol is 0.7893 g/ml, enthalpy of combustion of IL ethanol -2.11 X10 "KJ L.

heat absorbed per litre & calculated as h1=∆hrn/v= =-1234.8 kJ mol/0.058368 L molt= -21155.42 kJ L = =-211 X I0^4 KJL.enthalpy of combustion of IL ethanol -2.11 X10 "KJ L. The heat energy released whenever one mole of a material burns totally in oxygen is characterised as the enthalpy of combustion. A product's heat of combustion, also recognised as its calorific value as well as energy content, can be defined as the quantity of heat freed when a known quantity of the substance is burned. The enthalpy of combustion is the enthalpy of a specific compound's combustion reaction. The enthalpy of solution is the heat capacity of disbanding a chemical into solution, which can be expressed as a reaction.

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You can calculate surface area of syringe tip with equation SA = πr(r + √(r2 + h2))

To calculate the surface area of the syringe tip, you need to know the dimensions of the syringe tip. If the syringe tip is a cone shape, you can use the formula for the surface area of a cone:

SA = πr(r + √(r2 + h2))

Where SA is the surface area, r is the radius of the base of the cone, and h is the height of the cone.

Step 1: Measure the radius and height of the syringe tip.
Step 2: Plug the values into the formula.
Step 3: Solve the equation to find the surface area.

For example, if the radius of the syringe tip is 2 cm and the height is 4 cm, the surface area would be:

SA = π(2)(2 + √(22 + 42))
SA = π(2)(2 + √(4 + 16))
SA = π(2)(2 + √20)
SA = π(2)(2 + 4.472)
SA = π(6.472)
SA = 20.345 cm²

Therefore, the surface area of the syringe tip is 20.345 cm².

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Answer:

Consequently, what happens when gas obtained by heating slaked lime and ammonium chloride is passed through copper sulphate solution? The HCl in the gas mixture will form hydrochloric and the H+ will react with some of the NH3(aq), forming NH4^+, and with some of the SO4^2-, forming HSO4^-.

The gas obtained by heating Ammonium Chloride and slaked lime is passed through copper sulphate, deep blue solution will be formed.

The gas obtained by heating Ammonium Chloride and slaked lime is ammonia gas.

2NH₄Cl + Ca(OH)₂  ---> CaCl₂ + 2NH₃ + 2H₂O

Ammonia reacts with copper (II) ions to precipitate light blue copper hydroxide.

Ammonia causes the copper ion to go back into the solution as a deep blue ammonia complex.

However, in excess ammonia, the precipitate dissolves.

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Answer:

4m/s² north.

Explanation:

Data obtained from the question include the following:

Mass (m) = 10Kg

Force (F) = 40N North.

Acceleration (a) =...?

Force is simply the product of mass and acceleration. It is represented mathematically as:

Force (F) = Mass (m) x acceleration (a)

F = ma

With the above formula, we can obtain the acceleration of the object as follow:

40 = 10 x a

Divide both side by 10

a = 40/10

a = 4m/s²

Since the force was applied in the north direction, the object will also accelerate in the north direction. Therefore, the acceleration of the object is 4m/s² north.

Answer:

N2O5

Explanation:

First, you need to find the number of moles of each element in the compound. The molar mass of nitrogen is 14 g/mol and the molar mass of oxygen is 16 g/mol. So, the number of moles of nitrogen is 76 g / 14 g/mol = 5.43 mol and the number of moles of oxygen is 80 g / 16 g/mol = 5 mol.

Next, you need to find the simplest whole-number ratio between the number of moles of nitrogen and oxygen. This can be done by dividing both numbers by the smallest number of moles. So, the ratio is 5.43 mol / 5 mol = 1.09 : 1.

Since this ratio is close to 1:1, we can assume that the empirical formula of the compound is NO. However, since the molecular formula must be a whole-number multiple of the empirical formula, we need to multiply both subscripts by 2 to get N2O2.

Finally, we need to check if this molecular formula matches the given mass ratio. The molar mass of N2O2 is (2 * 14 g/mol) + (2 * 16 g/mol) = 60 g/mol. So, if we have 5.43 mol of N2O2, its mass would be 5.43 mol * 60 g/mol = 326 g. This does not match the given mass ratio.

Therefore, we need to try a different multiple of the empirical formula. If we multiply both subscripts by 5 instead of 2, we get N2O5. The molar mass of N2O5 is (2 * 14 g/mol) + (5 * 16 g/mol) = 108 g/mol. So, if we have 5.43 mol of N2O5, its mass would be 5.43 mol * 108 g/mol = 586 g. This matches the given mass ratio.

So, the correct answer is D. N2O5.

It is anticipated that the N—O bonds in NO3- will be weaker than those in NO⁺. This is due to the fact that NO³⁻ possesses three comparable N—O bonds, and the ion's negative charge renders the bonds more prone to dissociation.

The electrons in the N—O bonds are more dispersed due to the negative charge on the NO³⁻ ion, which causes a lower bond order and a weaker bond. In contrast, NO⁺ possesses a single N—O bond that is strengthened by the ion's positive charge, which pulls electrons towards the N atom. A greater bond order and a stronger N—O bond result from the N atom's increased electron density in NO⁺.

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Answer: From the question, the equation which is 2C2H6 + 7O2 --> 4CO2 + 6H2O has the products as 4CO2 + 6H2O( which is carbon dioxide and water)

Explanation:

Chemical reaction is a process in chemistry which leads to the formation of new substances referred to as PRODUCTS from combination of two or more substances called REACTANTS. There are different types of chemical reaction which includes COMBUSTION REACTION that is mostly seen in hydrocarbons.

Ethane is an example of a saturated hydrocarbon ( that is all the four bonds of carbon are single bonds) which undergoes combustion reaction with oxygen molecule. Ethane will burn in air( oxygen) to give off carbon dioxide and water as products of the chemical reaction.

2C2H6 + 7O2 --> 4CO2 + 6H2O

Shane and oxygen is the reactants of the chemical reaction while carbon dioxide and water is the products.

Paint has a trait called transferability that makes it especially useful to forensic investigators.

A connection between individuals, locations, and/or things may be established through investigation of paint found at the scene of a crime. Comparing paint from the crime scene with a sample of paint that was acquired from a known source is typically how paint is examined.

Examination of Paint By comparing the questioned sample to the standard, paint analysis in forensic science aims to determine its point of origin. Any pre-existing sources at the crime scene, such tools, walls, glass and glass shards, etc., can be used to find the paint.

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Answer:

Explanation:

The rather high specific activity of intracellular sucrase towards sucrose is known to be optimal at pH 6.0 and at a temperature of about 30°C. And thus, we can say that the optimum pH for sucrase activity is exactly at 6. Also, it's behaviour is said to be decreasing with increasing acidic and increasing alkallinic values.

We need to add 400 ml of the 40% solution.

What is concentration?

Being focused in some way. attention being focused on a single thing, in particular. I can't concentrate with all that noise around me. a concentration or major within an academic discipline.

What is volume?

A three-dimensional space's actual size when a closed surface encloses it. Take the area or shape that a substance, such as a solid, liquid, gas, or plasma, occupies as an example. The cubic meter, a S.I.-derived unit, is also frequently used to represent volume numerically.

We take the amount times the percent concentration and add what we mix to get the final concentration

We need the final mixture to be 30% and we have 200 +x milliliter added together so that will be the amount in the container

200 * 10 % + x* 40 % = (200+x) *30%

Change the percent to decimal form

200 * .10  + x* .40  = (200+x) *.30

Distribute the .30

20 + .4x = 60+.3x

Subtract .3x from each side

20 + .4x-.3x = 60+.3x-.3x

20 +.1x = 60

Subtract 20 from each side

20-20 +.1x = 60-20

.1x = 40

Divide by .1

.1x/.1 = 40/.1

x=400

Therefore, We need to add 400 ml of the 40% solution

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Answer:

Potable water, also known as drinking water, comes from surface and ground sources and is treated to levels that that meet state and federal standards for consumption.

The answer would be:

In2(SO4)3 (Also known as Indium Solfate).

The non-metals are boron and carbon. The metal is aluminum and the metalloid is silicon.

Explanation:

non-metal = boron, carbon

metal = aluminum

metalloid = silicon

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

A solid material which is lustrous, hard, shiny, malleable, and sonorous with good electrical and thermal conductivity.

Metal is an element which is typically hard, shiny, fusible, malleable, and ductile, with good electrical and thermal conductivity.

A nonmetal is an element that does not have the properties of a metal.

A metalloid is an element having intermediate properties of both metals and nonmetals.

Hence,

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

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Explanation:

Bottom line: Most asteroids are rocky bodies that lie within the asteroid belt while comets are dirty snowballs from the Oort Cloud, with some objects acting like a hybrid of these two types.

A pressure saucepan, also known as a pressure cooker, reduces cooking time by increasing atmospheric pressure inside the cooking vessel. This is achieved by sealing the pot tightly and trapping steam generated from boiling liquids and food. The increased pressure raises the boiling point of water, allowing food to cook at higher temperatures than normal. Options 1 and 3 are correct.

Option 1: Increasing atmospheric pressure is correct because the sealed pressure cooker traps steam, which increases the pressure inside the pot. The increased pressure raises the boiling point of water, resulting in faster cooking times.

Option 2: Decreasing atmospheric pressure is incorrect because pressure cookers work by increasing pressure, not decreasing it.

Option 3: Increasing vapor pressure is correct because as the pressure inside the pressure cooker increases, the vapor pressure of water also increases. This higher vapor pressure enables the food to cook more rapidly.

Option 4: Decreasing vapor pressure is incorrect because the pressure cooker actually increases the vapor pressure by raising the overall pressure inside the pot.

Option 5: Ionizing the added salt is unrelated to the operation of a pressure cooker and does not contribute to the reduction in cooking time.

Hence, a pressure saucepan reduces cooking time by increasing the atmospheric pressure and vapor pressure inside the pot.

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