Is BaO ionic or covalent?

The volume of the sample after the reaction takes place at constant temperature and pressure would be 5.4 L.

In the reaction: [tex]N_2(g) + 2H_2(g)-- > N_2H_4(g)[/tex]

Stoichiometrically, 1 mole of [tex]N_2[/tex] reacts with 2 moles of [tex]H_2[/tex] to produce 1 mole of [tex]N_2H_4[/tex].

In reality, 0.1500 mol of  [tex]N_2[/tex] reacts with 0.3000 mol of [tex]H_2[/tex]. The equivalent amount of [tex]N_2H_4[/tex] that would be formed will be 0.1500 mol according to the mole ratios from the balanced equation of the reaction.

Now, at constant temperature and pressure:

0.1500 + 0.3000 = 0.4500 mol

0.4500 mol is equivalent to 16.2 L according to the illustration.

0.1500 mol of  [tex]N_2H_4[/tex] is produced, the equivalent mole would, therefore, be:

0.4500 mol = 16.2 L

0.1500 mol = 16.2 x 0.1500/0.4500

                  = 5.4 L

In other words, the volume of the sample after the reaction takes place at constant temperature and pressure would be 5.4 L.

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Any substance that is a gift at the beginning of a chemical reaction a reactant

“A substance is a matter which has a specific composition and unique homes. ” every pure detail or pure compound is a substance. A substance can't be separated by way of any physical technique. The homes/composition of a natural substance is fixed.A substance is be counted which has a particular composition and unique houses. every pure element is a substance. each pure compound is a substance. Examples of materials: Iron is an element and as a result is also a substance.

A chemical substance is a shape of matter having a steady chemical composition and function homes. some references add that chemical substances can't be separated into their constituent factors with the aid of bodily separation techniques, i.e., without breaking chemical bonds.

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Despite having polar bonds, the gas carbon dioxide is a nonpolar molecule. CO2 has a linear structure. Since each bond dipole has an equal magnitude and is pointing in the opposite direction, they cancel each other out.

Polar bonds are seen in carbon dioxide, a non-polar compound. By first looking at the makeup of carbon dioxide, it can be understood. In carbon dioxide, a carbon atom forms a double bond on one side with an oxygen atom, and a second double bond on the other side with another oxygen atom.

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Answer:

0.9 and 0.90 are not the same because 0.9 is not up to zero but 0.90 is up to zero

It turns electrical energy into KE.

This is the correct statement of how a generator works:

A generator is described as a device that converts motive power or fuel-based power into electric power for use in an external circuit.

Generators contrary to general opinion do not create electricity instead it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit. This flow of electrons makes up  the output electric current supplied by the generator.

The present-day generators work on the principle of electromagnetic induction that was discovered by Michael Faraday.

Faraday realized that the above flow of current can be created by moving an electrical conductor in a magnetic field and this movement creates a voltage difference between the two ends of the conductor which causes the electric charges to flow, hence generating electric current.

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Complete question:

How does the generator work? Select the statement that describes that.

______It turns electrical energy into KE.

_____ It turns sound energy into electrical energy.

_____ It turns electrical energy into sound energy.

_____ It turns electrical energy into thermal energy.

_____ It turns KE into electrical energy.

Vehicles are modes of transportation that are used to travel from one place to another. Examples of vehicles include cars, buses, motorcycles, boats, and airplanes.

Cars are the most common type of vehicle, and they are used for everyday transportation. They typically have four wheels and an internal combustion engine that runs on gasoline or diesel fuel.

Buses are a type of vehicle that is used for public transportation. They are usually larger than cars and have more seating capacity.

Motorcycles are a type of vehicle that is designed for one or two people and has two wheels. They are powered by an internal combustion engine and are typically smaller than cars.

Boats are a type of vehicle that is used for traveling on water. They are powered by an engine or by sails and are typically used for recreation or transportation. Airplanes are a type of vehicle that is used for long-distance transportation. They are powered by jet engines and are capable of reaching high speeds and altitudes.

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No, oxygen and nitrogen will not form an ionic bond.

Covalent bonds formed by sharing electron pairs are what bind nitrogen and oxygen together. Nitrogen has an electronegativity of 3.0, while oxygen has a value of 3.5.

A covalent bond is formed when two atoms exchange one or more pairs of electrons. The two atomic nuclei are concurrently drawing these electrons to them. When the difference between the electronegativities of two atoms is too tiny for an electron transfer to take place to create ions, a covalent bond is formed. Hydrogen (H₂), oxygen (O₂), nitrogen (N₂), water (H₂O), and methane (CH₄) are five examples of covalent bonding. A covalent bond is a type of chemical relationship where two atoms share electron pairs.

Thus, bond between Nitrogen and oxygen is not ionic but covalent bond.

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The process that brings rocks and minerals containing phosphorus to the surface so it can be released for use by living things is called uplift.

A rock is defined as a solid or hard material that is made up of different minerals and they are of three main types such as igneous rock, sedimentary rock and metamorphic rocks.

The minerals that are found in rocks include the following:

quartz,

feldspar,

mica,

amphibole,

phosphorus

olivine, and calcite.

When these minerals are being transported to the surface of the earth to be used by plants and animals it is called uplift.

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The chain of custody for the finger print on the Door Know is summarized in the Chain of Custody form attached.

This is a procedure that documents each individual who handled the evidence, the date/time it was gathered or transferred, and the purpose for the transfer as it moves through its collecting, safekeeping, and analysis lifespan.

The most important aspect of evidence recording is the chain of custody. It is essential to demonstrate to the court of law that the evidence is genuine, i.e., that it was obtained at the crime scene. It was always in the care of someone assigned to manage it, and it was never unaccounted for.

The chain of custody demands that every transfer of evidence from person to person be documented from the time the evidence is acquired and that it be proven that no one else could have accessed that evidence. It is recommended to restrict the number of transfers to a minimum.

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Full Question:

In the video at the beginning of this unit, you were introduced to Jordan, a college student and newspaper intern. Jordan was shadowing police who were collecting evidence at the scene of a crime.

Jordan is shadowing the police again at a different crime scene. This time you have gone with him. Your job will be to record all of the required information on a chain of custody document.

Choose one of the items of physical evidence mentioned in Jordan's notes below.

Complete the chain of custody document for that item. (Make it similar to the example provided beneath Jordan's notes.)

Jordan's Notes

Tuesday, February 5

I observed evidence technician Josh Sanders dust the inside doorknob on the front door for latent fingerprints. Dusting the doorknob did reveal latent prints, which Sanders lifted with tape and transferred to a small card. That occurred at approximately 3:15 p.m.

I later observed Detective Laura Wilson collect a bullet casing from the tile floor in the kitchen after another investigator first photographed the area. The bullet casing was found on the floor beneath the kitchen table and was picked up by Wilson (with gloved hands) and placed in an evidence bag. Collection of the bullet casing occurred at 3:42 p.m.

I then looked in the guest bathroom down the hall from the kitchen and observed another evidence technician, William Soto, collecting unknown red fibers from inside the bathroom sink. The time was approximately 3:53 p.m. Soto collected the red fibers with tweezers and placed them inside an evidence bag.

Example of a Chain of Custody Form

Chain of CustodyItem collected as evidence: Individual who collected the item: Date and time of collection: Description of location where item was collected: Method of collection:

The naturalization process is the process by which a foreign citizen or national can become a U.S. citizen. It is a long and complicated process that requires a lot of paperwork, interviews and tests.

The first step is to determine if you are eligible to apply for naturalization. To be eligible, you must meet certain requirements, such as being a legal permanent resident for at least five years, good moral character, no criminal record, and a basic knowledge of U.S. history and government.

The next step is to submit the required paperwork, which includes the N-400 form and supporting documents demonstrating your eligibility. You may also be required to submit additional documents, such as birth and marriage certificates, military records, and financial documents.

Once your application has been submitted and accepted, you will be scheduled for an interview at a local USCIS office. During the interview, you will be asked questions about your application, including questions about your background, criminal record, and knowledge of U.S. history and government. You may also be required to take an English and civics test.

Following the interview, the USCIS will review your application and make a decision. If approved, you will be scheduled for a naturalization ceremony, where you will take the Oath of Allegiance and officially become a U.S. citizen.

The naturalization process can be long and complicated, but with the right help and preparation it is possible to become a U.S. citizen.

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Answer:

pH=7.32

Explanation:

pH is a mathematical expression that represents -log base 10 of the hydronium concentration:

[tex]pH=-\log[H_3O]\\pH=-log(4.75x10^-8)\\pH=7.32[/tex]

The formula of the hydrated potassium carbonate salt is K₂CO₃.2H₂O

Based on the calculated mass ratio of carbon and oxygen in carbon dioxide, carbon has a fixed composition.

Hydrated compounds are compounds that contain one or more molecules of water physically combined with a molecule of the compound.

The formula of the hydrated potassium carbonate salt is determined as follows:

Mass of the hydrated sample = 10.0 g

Mass of anhydrous salt = 7.83

mass of water = 10 - 7.83

mass of water = 2.17 g

Molar mass of water = 18.0 g

Molar mass of anhydrous potassium carbonate = 138 g

moles of anhydrous potassium carbonate in sample = 7.83/138

moles of anhydrous potassium carbonate = 0.056 moles

moles of water in the hydrated salt = 2.17/18

moles of water in the hydrated salt = 0.12

Mole ratio of water to anhydrous salt = 0.12/0.056

Mole ratio of water to anhydrous salt = 1 : 2

Formula of hydrated salt = K₂CO₃.2H₂O

The mass ratio of carbon to oxygen in the compounds is given below:

Sample 1:

Mass ratio = 3.62 / (13.26 - 3.62)

Mass ratio = 0.38 : 1

Sample 2:

Mass ratio = 5.91 / (21.66 - 5.91)

Mass ratio = 0.38 : 1

Sample 3:

Mass ratio = 7.07 / (25.91 - 7.07)

Mass ratio = 0.38 : 1

Carbon has a fixed composition.

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lithification is a complex process where sediments are compact under pressure, expel connate fluids and converted into solid rock.

A rock is the collection of solid (grains) mineral materials that grow or become cemented together. it can be a natural substance composed of solid crystals of different minerals that have been blend together into a solid lump.

The major types of rocks are:

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Both oxygen and iodine are non-metals. Neither contributes electrons to achieve octet stability. Instead of forming an ionic bond, these two electrons are shared to form a covalent bond.

If these two compounds react to form a compound, that compound is considered an ionic compound. The ionic form of rubidium is Rb+, while the ionic form of sulfur is S2-. Sodium reacts with oxygen to form ionic compounds.

On the other hand, sodium chloride contains ions. It is an ionic compound. Ionic compounds contain ions that are held together by attractive forces between oppositely charged ions. Table salt is one of the best-known ionic compounds. Rubidium is a positive element. It actively donates its single valence electron to form a positively charged cation.

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Answer: The hot dissolved butter will form softer cookies.

Explanation:

Reduction is a type of chemical reaction in which a particular molecule or compound loses one or more electrons.

It is the opposite of oxidation, which involves the addition of electrons. During a reduction reaction, the number of electrons held by a molecule increases, resulting in a decrease in the oxidation state of the molecule.

This type of reaction usually involves the transfer of electrons from one molecule to another. Examples include the reduction of a metal oxide to form a metal, the reduction of nitrate to form a nitrite, and the reduction of an aldehyde to form an alcohol.

Reduction reactions play an important role in chemical synthesis, energy production, and the metabolism of living organisms.

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Considering the Boyle's law, the volume of the gas sample will be 997.908 mL.

Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant: if the pressure increases, the volume decreases while if the pressure decreases, the volume increases.

Mathematically, this law expresses that if the amount of gas and the temperature remain constant, the product of the pressure by the volume always has the same value:

P×V= k

where P is the pressure, V is the volume, and k is a constant.

Analyzing an initial state 1 and a final state 2, it is fulfilled:

P₁×V₁= P₂×V₂

In this case, you know:

P₁= 1.10 atm

V₁= 694 mL

P₂= 0.765 atm

V₂= ?

Replacing in Boyle's law:

1.10 atm× 694 mL= 0.765 atm×V₂

(1.10 atm× 694 mL)÷ 0.765 atm= V₂

997.908 mL= V₂

Finally, the new volume will be 997.908 mL.

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The balanced chemical equation for acid-base reactions is as given below

2HCl(aq) + Ca(OH)2 ------ CaCl2 + 2H2O

A chemical equation is said to be balanced chemical equation if the atoms or molecules of different elements on the reactant side is equal to the atoms or molecules of different elements on the product side.

In the given reaction, HCl is reactant and Ca(OH)2 is base. They react with each other to form CaCl2 and release two molecules of H2O.

Now, we will balance the chemical equation.

On reactant side, there are 3 atoms of hydrogen atoms, one atom of chlorine, two atom of oxygen and one calcium atom. So, we equal it by reacting two molecules of HCl with one molecule of Ca(OH)2 to form one molecule of CaCl2 and two molecules of water.

Therefore, by balancing equation we get

2HCl(aq)+Ca(OH)2 ------ CaCl2 + 2H2O

Thus, we concluded that the balanced chemical equation for acid-base reactions is as given below:

2HCl(aq) + Ca(OH)2 ------ CaCl2 + 2H2O

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Due to increase in surface area and Vander Wall's force of attraction, boiling point of alcohols increases with increase in number of carbon atoms.

increase in surface area and Vander walls force of attraction

Answer:

here is the diagram

Explanation:

When an onion is chopped, certain substances called lachrymators are released, irritating the lacrimal glands and the nerves that surround the eyes.

Methionine and cystine, two members of the amino acid family, make up these molecules. (These amino acids are joined together to form proteins.)

These substances are released into the air when an onion is cut or diced. When this happens, a "enzyme" transforms the amino acids into chemicals that act as lachrymators. This type of sulfuric acid irritates the eyes' nearby nerves, causing tears to develop.

Hence, lachrymator causes tearing of eyes.

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Phosphorus and chlorine form bond is covalent bond.

A covalent bond is likely to form if the difference in electronegativity between the elements is less than 1.7.

For instance, the electronegativity of phosphorus (P) is 2.1 and that of chlorine (Cl) is 3.0.

These two numbers are differentiated by 0.9. Since 0.9 is lesser than 1.7, phosphorus and chlorine form a covalent bond.

Chlorine and phosphorus are both found on the right side of the periodic table, which is where nonmetals are. As a result, a covalent bond will be formed between the two nonmetals.

So, we can say that covalent bond is between phosphorus and chlorine.

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The amount, in grams, of iron that would be needed to completely consume 20.0 L of oxygen gas would be 0.599 grams.

The equation of the reaction can be expressed as follows;

[tex]4Fe + 3O_2 --- > 2Fe_2O_3[/tex]

Stoichiometrically, 4 moles of iron requires 3 moles of oxygen gas.

20.0 L of oxygen at 1 atm and 25 °C would be equivalent to:

pv = nrt, where p is the pressure, v is the volume, n is the number of mol, R is the universal gas constant, and t is the temperature.

In this case, p = 1 atm, v = 20.0 L, r = 8.3145, and t = 25 +273

n = pv/rt

  = 1x20/8.3145x298

  = 20/2477.721

  = 0.008 mol of oxygen

The equivalent mole of iron required would be:

0.008 x 4/3 = 0.0107 mol

The molar weight of iron is 56.

Mass of 0.0107 mol of iron = 0.0107 x 56

                                            = 0.599 grams

In other words, 0.599 grams of iron would be needed to completely consume 20.0 L of oxygen at 25 °C and 1 atm.

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Answer:sulphur reacts with chlorine in 1:2

Explanation:hope this helps :)

The statement which correctly explains how matter is conserved in chemical reactions is- Atoms of each element are conserved, so the total mass does not change.

The Law of Lomonsov-Lavoisier and the Law of Conservation of Mass are other names for the Law of Conservation of Matter. "The mass is not generated or destroyed, simply altered," according to this law.

As a result of the diverse atomic arrangements in the various substances, the reagents interact with one another to create new products that differ from the reagents in terms of their physical and chemical characteristics. But the amount of matter or mass before and after a transformation (chemical reaction) must always be constant; that is, the amounts of the masses involved in a given reaction must not change in their proportions when the reaction is complete.

n other words, the mass prior to the chemical reaction and the mass following the reaction are equal. Nuclear reactions are the exception to the norm, where it is possible to change mass into energy and vice versa.

Hence, the statement which correctly explains how matter is conserved in chemical reactions is- Atoms of each element are conserved, so the total mass does not change.

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Your question is incomplete please write the complete question over the internet.

Due to its symmetry and the fact that the pull of the two oxygen atoms on the electrons of carbon cancel each other out, carbon dioxide is a nonpolar molecule with polar bonds. Because the vector sum of the dipole moments of the two CO bonds is zero, the CO2 molecule is non-polar even if the CO bond in it is polar.

With carbon, each oxygen atom forms a double bond. Different electronegativities of carbon (C) and oxygen (O) result in unequal distribution of electrons between them. Due to the cancellation of the two bond dipole moments, there is no net molecule dipole moment. Carbon dioxide is a non-polar gas as a result.

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Since they don't also have a dipole moment, all diatomic molecules with the same atoms are inherently non-polar. Only when there is a charge gap or unevenly distributed charges across atoms does a molecule produce a dipole moment. Cl2 is hence nonpolar.

Chlorine (Cl2) Take the molecule of chlorine, Cl2, for instance. The two Cl atoms are connected by a solitary covalent bond. The positive Cl atom's nucleus and the covalent bond's negative electron pair are attracted to one another.

Two chlorine atoms that are not metals make up the compound Cl2. Cl2 won't display metallic boding as a result. Cl2 won't contain an ionic bond because ionic bonds only form when a metal and a non-metal interact, so it must be covalent.

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Because the electrons in sulfur are so tightly bound and unable to move, the element functions more like an insulator. Since electrons have a harder time moving when they are packed closely together as a solid, Sulphur is dull and brittle, which again indicates that it is a poor conductor.

Sulfur is a brittle, pale yellow, odorless solid that is soluble in carbon disulfide but insoluble in water.

Materials like coal and sulfur, however, have a softer, duller appearance. On hammer blows, they crumble into a powdery mass. They lack sonority and have poor conductivity for both heat and electricity.

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Neutral atom generally means to atoms which don't react with any other atoms or elements.

If an atom has an equal number of electrons and protons, then it also has an equal number of negative (the electrons) and positive electric charges (the protons). As a result, the total electric charge of the atom is zero, and the atom is said to be neutral. Thus, all the elements in the periodic table are neutral atoms.

Example of neutral atom

For example a neutral sodium atom which contains 11 protons and 11 electrons. And after removing an electron from this atom we get a positively charged Na⁺ ion that has a net charge of +1. Atoms become negatively charged when it  gains extra electrons.

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The normal distance between the two successive base pairs within a DNA is 3.4 Angstroms or 0.34 nm.

DNA base pair. Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

Hydrogen bonding is the chemical interaction that underlies the base-pairing rules described above. Appropriate geometrical correspondence of hydrogen bond donors and acceptors allows only the "right" pairs to form stably. DNA with high GC-content is more stable than DNA with low GC-content. But, contrary to popular belief, the hydrogen bonds do not stabilize the DNA significantly; stabilization is mainly due to stacking interactions.

A unit of length equal to one hundred-millionth of a centimeter, 10−10 meter, used mainly to express wavelengths and interatomic distances.

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