Does changing the number of neutrons change the identity of the element you have built ?

Answer:

11 g

Explanation:

Amount of phosphorus = 6.2g ÷ 31.0 g/mol = 0.2 mol

Amount of P2O3 formed = (0.2mol / 4) × 2 = 0.1 mol

Mass of P2O3 = 0.1mol × 110 g/mol = 11 g

The mass of phosphorous(III) produced from 6.2g of phosphorous is 11g.

Phosphorus is a chemical element which belongs to nitrogen family in the periodic table with symbol P and atomic number 15.

Mass is a measure of the amount of matter that an object contains. The base SI unit of mass is the kg.

Phosphorus reacts with oxygen to form phosphorus (III) oxide.

4P(s) + 3O2(g) --> 2P2O3(s)

Given mass of phosphorous = 6.2 g

Atomic mass of Phosphorous = 31 g

Molecular weight of phosphorous (P₂O₃)

                                                         = 31 x 2 + 16 x 3

                                                         = 110g/mol

Amount of phosphorus = 6.2g / 31 g/mol = 0.2 mol

Amount of P2O3 formed = (0.2mol / 4) × 2 = 0.1 mol

Mass of P2O3 = 0.1mol × 110 g/mol = 11 g

Hence, 11g of phosphorous (III) is produced from 6.2g of phosphorous.

To learn more about mass and phosphorous here

https://brainly.com/question/17412629

#SPJ2

Answer:

15,000 mg

Explanation:

1 gram=1000 mg

15 gm=15,000 mg

Answer:

The electrons are most likely to be found in An orbital

Answer:

The equilibrium shifts right to produce more SO3 molecules.

Explanation:

The equilibrium law states that when a system encounters a disturbance like a temperature, concentration, or pressure modifications, it will react to restore a new state of equilibrium.  

Adding a reactant such as oxygen (O2) will shift the reaction in the direction of the product, on the basis of the equilibrium law. Therefore, the equilibrium will move toward the product side.

Metal of the following surfaces does NOT absorb moisture.

The correct option is B.

The presence of a liquid, things like water, even in minute amounts, is referred to as moisture. Examples of locations where small amounts of water can be found include the air (humidity), foods, and some commercial goods. The amount of water vapor in the atmosphere is also alluded to as moisture.

Warm, moist weather that comes in touch with a cool surface, such uninsulated cold water mains, causes moisture to condense into water droplets. Numerous other represent the lowest including cooking, taking a bath, drying clothing, washing the dishes, and others also release moisture into the air.

To know more about Moisture visit:

https://brainly.com/question/14894449

#SPJ13

The complete question is -

Which of the following surfaces does NOT absorb moisture? *

A-Cardboard

B- Metal

C-Magazine cover

D-Rough wood

The early committees trying to regulate that how the newly discovered element were named

Before the regulation were applied to the field of chemistry and the element their characteristics and other information related to them were so disorganized that this was causing the progress in the field to slow down so the committees decided to regulate things such as the names of any newly discovered element and any properties it had so that it could be put to use in a more effective way

Know more about chemistry

https://brainly.com/question/18018187

#SPJ1

Answer:

Hypothesis

Explanation:

The experiment is giving him the same value because he is using two strong acid

Answer:

This image attached should help:

Explanation:

The reason that food web contains all organisms is because it shows every relationship, where food chain shows a more basic one. And the reason that they both have producers, consumers, and decomposers, is because they bothat least highlight a part of the almost every aspect, although it leans more to food web.

here's the answer to the question in the image, I couldn't comment on the right question because a bot already did.

1. ant, love

active

2. dog, man

dormant

3. bug, ring

burning

4. dress, up

pressure

5. think, tiger

trinker

In a titration of a weak acid with a strong base, the concentration of the weak acid and its conjugate base are approximately equal at the halfway point of the titration, also known as the half-equivalence point.

At the beginning of the titration, the solution contains only the weak acid and its concentration is high. As the strong base is added, it reacts with the weak acid to form its conjugate base and water. The concentration of the weak acid gradually decreases while the concentration of the conjugate base increases until it reaches the halfway point.

At the halfway point, half of the weak acid has been neutralized by the strong base, and half remains in the solution. At this point, the concentrations of the weak acid and its conjugate base are approximately equal, and the pH of the solution is equal to the pKa of the weak acid. After the half-equivalence point, the concentration of the conjugate base becomes higher than the concentration of the weak acid, and the pH of the solution starts to rise more rapidly.

To learn more about weak acid  refer to:

brainly.com/question/22104949

#SPJ4

Answer:

The liquefaction of air is used to obtain nitrogen, oxygen, and argon and other atmospheric noble gases by separating the air components by fractional distillation in a cryogenic air separation unit.

Explanation:

Answer:

Tectonic plates

Explanation:

All the natural disasters like earthquakes, volcanoes and geysers appear throughout the region of New Zealand because of the movement of tectonic plates underneath the surface. New Zealand rests on the edges of two tectonic plates including the Pacific and the Australian plates.

The empirical formula of the compound obtained from the question given is NaBrO₃

The empirical formula of the compound can be obtained as illustrated below:

Divide by their molar mass

Na = 15.24 / 22.99 = 0.663

Br = 52.95 / 79.90 = 0.663

O = 31.81 / 16 = 1.988

Divide by the smallest

Na = 0.663 / 0.663 = 1

Br = 0.663 / 0.663 = 1

O = 1.988 / 0.663 = 3

Thus, the empirical formula of the compound is NaBrO₃

Learn more about empirical formula:

https://brainly.com/question/24297883

The situation which would have caused the clear yellow solution to remain as is in dibenzalacetone synthesis at the end of 30 minutes can be due to Insufficient reactants, Inappropriate reaction conditions and Inhibition of the reaction.

The starting materials of dibenzalacetone synthesis are all colorless and turn into a clear yellow solution as they are mixed. The situation that would have caused the clear yellow solution to remain as is at the end of 30 minutes is the reaction having gone to completion. The formation of dibenzalacetone involves the aldol condensation of two moles of benzaldehyde with one mole of acetone.

The reaction is carried out in the presence of a base such as NaOH, which removes the acidic alpha-hydrogens of benzaldehyde and acetone to form the enolate ions. These ions are then condensed to form dibenzalacetone. In a successful reaction, the clear yellow solution will eventually become cloudy as dibenzalacetone forms as a solid precipitate. This can occur if not all of the starting materials were properly mixed or if the reaction did not proceed to completion due to factors such as insufficient heating or the presence of impurities.

Insufficient reactants: If there are not enough starting materials present, the reaction may not proceed to completion, and the yellow solution will not change. Inappropriate reaction conditions: Factors such as temperature, solvent, or pH could affect the reaction. If any of these factors are not optimal, the reaction may not proceed efficiently, leading to an unchanged yellow solution.

Inhibition of the reaction: The presence of any impurities or contaminants in the starting materials or the reaction mixture could potentially inhibit the reaction, causing the yellow solution to remain unchanged. To address these situations, ensure that you have the correct amounts of starting materials, follow the recommended reaction conditions, and work with clean and pure chemicals and equipment.

To know more about dibenzalacetone, refer here:

https://brainly.com/question/19340462#

#SPJ11

Given that ionization constant of water (Kw) at 40°C is 2.9x10^-14 .

We need to calculate H3O+, OH-, pH and pOH for pure water at 40°C.

The ionization of water can be given as:

2H2O ⇌ H3O+ + OH-Kw = [H3O+][OH-]

Putting the values:Kw = [H3O+][OH-]2.9x10^-14 = [H3O+][OH-]

Let [H3O+] = [OH-]= x

∴ Kw = x2∴ x = √2.9x10^-14x = 1.7x10^-7mol/L

Hence, [H3O+] = [OH-] = 1.7x10^-7mol/LpH = -log[H3O+]pH = -log(1.7x10^-7)pH = 6.7689pOH = -log[OH-]pOH = -log(1.7x10^-7)pOH = 6.7689

Therefore, pH and pOH of pure water at 40°C are 6.7689.

Learn more about ionisation constant:

https://brainly.com/question/30639622

#SPJ11

The state of matter you are referring to is the liquid state.

In this state, atoms or molecules can change shape to fit the container they are in, but they do not necessarily occupy the whole space of the container, as they are held together by intermolecular forces, giving liquids a definite volume.

The liquid state of matter is one of the four fundamental states of matter, along with solid, gas, and plasma.

In the liquid state, atoms or molecules are in constant motion, but they are still close enough to each other to be held together by intermolecular forces, such as hydrogen bonds, van der Waals forces, and other attractive forces.

One of the key characteristics of liquids is that they have a definite volume, which means that they maintain a fixed amount of space regardless of the shape of the container they are in.

This is because the intermolecular forces prevent the atoms or molecules from spreading out to fill the entire container. Instead, they tend to occupy the bottom of the container due to gravity, forming a level surface known as the liquid's free surface.

However, liquids do not have a definite shape and can change shape to fit the container they are in. This property is known as fluidity, and it allows liquids to flow and take the shape of their container.

To learn more about plasma, refer below:

https://brainly.com/question/13153516

#SPJ11

3. (a) Ni electrode can serve as the standard electrode as its reduction potential is zero. It can act a reference standard electrode as the species with reduction potential values more positive to it will get reduced and species with reduction potential values more negative to it will get oxidized. Thus Ni electrode can serve as reference standard electrode.

(b) Cu2+ ion is most easily reduced as it has positive reduction value thus it act as good oxidizing agent by oxidizing other an itself get reduced.

(c) Al metal is most easily oxidized as it has most negative reduction potential value thus it act as good reducing agent by reducing others and itself get oxidized.

(d) Copper and aluminium electrodes are connected to battery to form a spontaneous cell

(i) Al is oxidized as it has negative reduction potential value, thus it loses 3 electrons and form Al3+ ion.

(ii) Al metal act as anode. Because at anode always oxidation takes place. So Al is oxidized to Al3+ at anode.

(iii) At anode: 2 Al (s) 1  2 Al3+ (aq) + 6e-

At cathode: 3 Cu2+ (aq) + 6e- 1  3 Cu (s)  

Net ionic equation: 2 Al (s) +  3 Cu2+ (aq) 1  2 Al3+ (aq) + 3 Cu (s) 

(iv) E0cell = E0cathode - E0anode 

E0cathode = E0Cu2+/ Cu  = 0.62 V                

E0anode = E0Al3+ / Al = -1.38 V

E0cell  = 0.62 V - (-1.38) V = 2 V

As the standard electrode potential of cell is positive, thus the cell reaction is spontanoeus and will proceed in forward direction.

To know more about  negative voltage visit:

https://brainly.com/question/14618405

#SPJ4

Answer:

5 M/S

Explanation:

I think this is correct

The FALSE statement among the given options is: Ag2CO3 is predicted to be more soluble in pure water than in 0.10 M HCl.

Ag2CO3 is predicted to be more soluble in 0.10 M HCl than in pure water due to the common-ion effect. The presence of chloride ions in 0.10 M HCl will decrease the solubility of Ag2CO3 in accordance with Le Chatelier's principle. However, AgCl is predicted to be more soluble in 0.10 M HCN than in pure water due to the formation of Ag(CN)2− complex ions, which increases the solubility of AgCl. Similarly, AgCl is predicted to be more soluble in pure water than in 0.10 M HCl because of the dissolution reaction AgCl(s) ⇌ Ag+(aq) + Cl−(aq), which is favored in pure water. Finally, a saturated aqueous solution of AgCl is predicted to exhibit an approximately neutral pH at 25°C because the solubility product of AgCl is very small, leading to a negligible concentration of H+ and OH- ions.

The solubility of a sparingly soluble salt, such as AgCl or Ag2CO3, depends on the concentration of ions in solution and the solubility product constant (Ksp) of the salt. The solubility product constant (Ksp) is the equilibrium constant for the dissolution of a sparingly soluble salt in water, and it reflects the extent to which a salt can dissolve.

When a salt dissolves in water, it can react with other ions in solution, resulting in the formation of complexes that increase its solubility. For example, the addition of HCN to a solution of AgCl can result in the formation of the complex ion Ag(CN)2−, which increases the solubility of AgCl. The equilibrium can be represented by the following equation: AgCl(s) + 2CN−(aq) ⇌ Ag(CN)2−(aq) + Cl−(aq)

In contrast, the presence of common ions in solution can decrease the solubility of a salt due to the common-ion effect. When HCl is added to a solution of Ag2CO3, the concentration of Cl− ions increases, which shifts the equilibrium of Ag2CO3 to the left, reducing its solubility. The equilibrium can be represented by the following equation: Ag2CO3(s) + 2H+(aq) ⇌ 2Ag+(aq) + CO32−(aq) + H2O(l)

Finally, the pH of a saturated aqueous solution of AgCl is approximately neutral because the concentration of H+ and OH- ions is negligible due to the small value of Ksp for AgCl. The solubility product expression for AgCl is given by Ksp = [Ag+][Cl-], and because Ksp is very small, the concentration of Ag+ and Cl- ions in solution is also very small. As a result, the pH of the solution is approximately neutral, and any acid or base added to the solution will be neutralized by the small concentration of H+ or OH- ions present.

To know more about solubility.

https://brainly.com/question/28170449

#SPJ11

Answer:

2Li + ZnBr2 ->2LiBr + Zn

3Ca + Al2O3 ->2Al + 3CaO

Explanation:

Spontaneous reactions are reactions that can happen on their own. For a spontaneous reaction to occur, a metal that is higher in the activity series must displace a metal that is lower in the activity series from its solution and not vice versa.

If we look at the two reactions selected in the answer, lithium is above zinc in the activity series and calcium is above aluminum in the activity series hence the two reactions occur spontaneously.

Sulfur trioxide's chemical name is SO3. That is accurate, indeed. Three oxygen atoms and one sulphur atom make up the chemical compound trioxide, which has the formula SO3. It also goes by the name sulphur

With the chemical formula SO3, sulphur trioxide, sometimes referred to as trioxide, is a highly reactive and corrosive substance. It is a colourless to white crystalline substance that easily transforms into sulfuric acid when exposed to water. Sulfur dioxide and oxygen react in the presence of a catalyst, such as vanadium pentoxide, to form trioxide in an industrial setting. It is employed in the production of sulfuric acid, one of the most significant industrial compounds having several uses across numerous industries. Trioxide is used in a variety of specialised processes, including the creation of synthetic textiles and pigments. Nonetheless, trioxide has to be handled carefully and with the right safety precautions

Learn more about trioxide,here:

https://brainly.com/question/10388500

#SPJ4

Answer:

try using this calculator

wolfram alpha lewis structure calculator

Explanation:

The best Lewis structure, adhering to formal charge rules, of IO₄⁻, has eight bonding pairs of electrons around the iodine atom.

A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule.

The shared pairs of electrons are drawn as lines between atoms, while lone pairs of electrons are drawn as dots next to atoms.

They also display the total number of lone pairs present in each of the atoms that constitute the molecule.

Learn more about Lewis structure, here:

https://brainly.com/question/29603042

#SPJ6

The number of molecules in 37.93g of magnesium nitrate will be : 0.2568 mol * 6.022x10^23 molecules/mol = 1.55x10^24 molecules.

To determine the number of molecules in a 37.93 gram sample of magnesium nitrate, you would need to know the molar mass of the compound. Magnesium nitrate has a molar mass of 148.31 g/mol.

we can use the formula:

Number of moles = mass (in grams) / molar mass (in g/mol)

Number of moles = 37.93 g / 148.31 g/mol = 0.2568 mol Avogadro's number (6.022x10^23) is the number of atoms, ions, or molecules in one mole of a substance. Therefore, the number of molecules in 37.93g of magnesium nitrate will be : 0.2568 mol * 6.022x10^23 molecules/mol = 1.55x10^24 molecules.

Learn more about molar mass here:

https://brainly.com/question/22997914

#SPJ4

In conclusion, when counterfeit pen ink comes into contact with counterfeit money, the ink reacts and marks the paper with a particular color, which indicates whether the money is genuine or fake. In the United States, the ink used to print currency and the paper used to print it contain a special chemical that makes it possible for the pen to mark the surface but not to produce a chemical reaction.

When a counterfeit pen ink comes into contact with counterfeit money, the ink reacts and marks the paper with a particular color, which indicates whether the money is genuine or fake. This ink is utilized as a measure against counterfeit money, as it has a chemical reaction to specific chemicals that are found in fake banknotes.

What is the type of change that occurs when a counterfeit pen ink comes into contact with counterfeit money?

When counterfeit pen ink comes into contact with counterfeit money, the ink produces a chemical reaction that leads to a modification in the appearance of the ink. The color of the ink transforms to reveal whether or not the money is genuine. In most circumstances, the ink turns black if the money is not genuine and yellow or pale if the money is genuine.

Why doesn't this reaction occur when the counterfeit pen is used on genuine money printed in the United States?

In the United States, the ink used to print currency and the paper used to print it contain a special chemical that makes it possible for the pen to mark the surface, but not to produce a chemical reaction. This ink is intended to prevent individuals from being able to use a counterfeit pen to determine whether or not a banknote is real because the United States Secret Service, the organization in charge of counterfeit prevention, can track counterfeit banknotes with this technology.

to know more about counterfeit prevention visit:

https://brainly.com/question/30088488

#SPJ11

The essential conditions for pressure are high temperature and minimum volume.

Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.

There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .

It is a scalar quantity which is related to the vector area element with a normal force acting on it.It is distributed over solid boundaries and across arbitary sections of fluid normal to the boundaries at every point.

Learn more about pressure,here:

https://brainly.com/question/14760196

#SPJ9

Answer:

0.179kg/m3 hope that helps you out

Answer:

190

Explanation:

Gold has atomic number of 79, which is the number of protons.

Mass number = #protons + #neutrons = 79 + 111 = 190

Answer:

0.071 moles of Na₃PO₄

Explanation:

Given data:

Number of moles of Na₃PO₄ = ?

Number of molecules of Na₃PO₄ = 4.3×10²² molecules

Solution:

1 mole contain 6.022×10²³ molecules

4.3×10²² molecules × 1mol / 6.022×10²³ molecules

0.71×10⁻¹ mol

0.071 mol

The number 6.022 × 10²³ is called Avogadro number.

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

Answer:

I believe it is one. I attached what I think is the balanced equation of the problem you gave. The answer is d.1

Explanation:

CH4+4O=CO2+2H2O

Answer:

Answer

Explanation:

1) Other gasses / or argon (based on what u took in ur school )

2) oxygen

3? Nitrogen

Answer:

By volume, the dry air (which i'm assuming that's what either the blue or red is) in Earth's atmosphere is about 78.09 percent nitrogen, and 0.93 percent argon (which might be what red is (if the red isn't dry air)). A brew of trace gases accounts for the other 0.03 percent (which I think that might be the yellow), including the greenhouse gases carbon dioxide, methane, nitrous oxide and ozone.

Explanation:

Answer:

33 minutes

Explanation:

60 km/h = 37.28 mi/h

20/37.28 = 0.5364 h

0.5364 * 60 min = 32.2 minutes