Karmina inflated a balloon at sea level, where the atmospheric pressure was 101. 3 kilopascals. The volume of the balloon was 2. 15 liters. She then carried the balloon with her to the top of a mountain, where the atmospheric pressure was 83. 1 kilopascals. If the temperature was constant and no air leaked out of the balloon, what was the balloon’s volume at the top of the mountain?.

The formula for perchloric acid is HClO₄.

Perchloric acid is a strong acid that contains one hydrogen atom, one chlorine atom, and four oxygen atoms. Perchloric acid is a highly corrosive and reactive chemical that is used in a variety of industrial processes, such as rocket fuel production, metal etching, and laboratory reagents.

It is also a common oxidizing agent and can be dangerous if handled improperly, as it can react violently with organic materials and other reducing agents.

To know more about the perchloric acid, here

brainly.com/question/29089251

#SPJ4

Answer:

5°c or below

Explanation:

it is when it is above said temperature the human body may feel cold but you do not need to wear a winter coat

The species that acted as the strongest oxidizing agent in the options is Mg2+.

A substance or element that participates in an oxidation-reduction (redox) reaction and receives electrons from a separate species is known as an oxidizing agent. An oxidant is a chemical molecule that readily exchanges oxygen or other material atoms for an electron.

The electron donor is a reducing substance, which is usually in one of its lower oxidation states. Because it gives up electrons in the redox reaction, a reducing agent becomes oxidized. The earth metals, formic acid, and sulfite compounds are a few important examples of reducing agents.

Learn more about oxidizing agent:

brainly.com/question/10547418

#SPJ4

Answer:

89.6 L

Explanation:

The volume of a gas at STP (Standard Temperature and Pressure) is 22.4 L per mole of gas. To determine the volume of 128 grams of O2, we need to convert the mass of O2 to moles of O2:

First, we need to determine the number of moles of O2 in 128 grams of O2 using the molar mass of O2:

molar mass of O2 = 2 x atomic mass of O = 2 x 16.00 g/mol = 32.00 g/mol

moles of O2 = mass of O2 / molar mass of O2

moles of O2 = 128 g / 32.00 g/mol = 4.00 mol

Now that we have the number of moles of O2, we can use the volume at STP for one mole of gas to calculate the total volume of the sample:

volume of O2 = number of moles of O2 x volume at STP per mole of gas

volume of O2 = 4.00 mol x 22.4 L/mol = 89.6 L

Therefore, 128 grams of O2 at STP occupies a volume of 89.6 L.

Answer:

it's describe the atom because the other name for it is atom

6.022 x 1023 is referred to as Avogadro's number. In chemistry, it denotes the quantity of atoms, molecules, or ions in one mole of a material. The amount of particles in one mole of a material is equal to the

The quantity of particles (atoms, molecules, or ions) in one mole of a material is known as Avogadro's number, which is a fundamental constant in chemistry. In terms of particles per mole, Avogadro's number is around 6.022 x 1023. Amedeo Avogadro, an Italian physicist, initially put out this theory in the 19th century to describe how gases behave. The amount of particles in one mole of a material is equal to the number of atoms in 12 grammes of pure carbon-12. Avogadro's number is crucial to our comprehension of the make-up and behaviour of matter since it is employed in several calculations and measurements in chemistry, such

Learn more about Avogadro's here:

https://brainly.com/question/11907018

#SPJ4

S: -2  (Sulfur) , Br: -1  (Bromine), I: -1  (Iodine) ,Li: +1  (Lithium) ,Sr: +2  (Strontium) ,Mg: +2  (Magnesium) ,Na: +1  (Sodium) ,Cs: +1  (Cesium), Ba: +2  (Barium) ,F: -1  (Fluorine) ,O: -2  (Oxygen)

Magnesium is an essential mineral found in the human body. It plays an important role in the body, acting as a cofactor in over 300 enzyme systems that regulate diverse biochemical reactions in the body, including protein synthesis, muscle and nerve function, blood glucose levels, and blood pressure regulation. Magnesium is also involved in energy production and metabolism and is necessary for the proper functioning of muscles, nerves, and enzymes. It helps to keep bones strong, maintains normal heart rhythm, and helps to regulate blood sugar and blood pressure levels. Magnesium is found in many foods, including green leafy vegetables, nuts, seeds, and some types of seafood.

To learn more about Magnesium
https://brainly.com/question/25860912
#SPJ1

The balanced equation is; 3F2 + 2AlCl3 → 2AlF3 + 3Cl2 the coefficient for  aluminum chloride is 2

The steps in balancing reaction equation is;

Write the unbalanced equation: Start by writing the unbalanced equation for the chemical reaction you wish to balance.

Count the atoms: Count the number of atoms of each element in the reactants and the products. You can use the chemical formula of each compound to do this.

Balance the elements: Balance each element one at a time. Begin with the elements that appear in only one compound on either side of the equation.

Use coefficients: To balance the equation, add coefficients in front of the chemical formulas for the reactants and products. Do not change the subscripts in the chemical formulas.

Check the balanced equation: After adding coefficients, check the equation to make sure that the same number of atoms of each element appears on both sides of the equation.

Verify the equation: Finally, make sure that the equation is fully balanced by counting the number of atoms on both sides of the equation.

Learn more about reaction:https://brainly.com/question/28984750

#SPJ1

1-bromobutane undergoes dehydrohalogenation by an E2 elimination mechanism when heated with potassium tert-butoxide because this follow second order kinetics.

E2 elimination mechanism can be referred as a  bimolecular elimination which is basically a one-step mechanism. In this mechanism, the carbon-hydrogen and carbon-halogen bonds mostly break off to form a new double bond. In the E2 elimination mechanism a base is part of the rate-determining step and it has a huge influence on the mechanism. A second-order reaction is defined as the sum of the exponents in the rate law is equal to two. Dehydrohalogenation is defined as a reaction in which a hydrogen atom and a halogen atom are removed from adjacent atoms in a molecule forming an alkene or an alkyne. When reacted with strong base such as hydroxide ion, cyclohexyl chloride and potassium tert-butoxide suffers dehydrohalogenation by a concerted E2 reaction mechanism.

To learn more about E2 elimination mechanism

https://brainly.com/question/28239179

#SPJ4

Water is an important molecule because it can form hydrogen bonds, which allow it to have unique properties such as high heat capacity and being an excellent solvent for many substances.

It is not non-polar and is actually considered a polar molecule. Water is an important molecule because it can form hydrogen bonds due to its polar nature, which makes it an excellent solvent for a wide range of polar and ionic substances. Its high heat capacity enables it to absorb and release heat slowly, making it an effective temperature regulator in living organisms and the environment. Additionally, water has a unique density behavior, with its density increasing as it cools until it reaches 4°C, then it becomes less dense as it freezes, making ice float on liquid water, providing a protective environment for aquatic organisms in cold temperatures.

Learn more about hydrogen bonds here: brainly.com/question/10904296

#SPJ4

The quantum numbers for the next electron added to this orbital are n = 3, ℓ = 0, mℓ = 0, and ms = +½.

The quantum numbers for an electron in an orbital describe its energy level, angular momentum, magnetic moment, and spin. Based on the given quantum numbers for the first electron, we can determine the possible quantum numbers for the next electron added to this orbital.

The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers, so the quantum numbers for the second electron must be different from the first electron.

We know that the first electron has the following quantum numbers:

   Principal quantum number (n) = 3

   Azimuthal quantum number (ℓ) = 0

   Magnetic quantum number (mℓ) = 0

   Spin quantum number (ms) = -½

Since the azimuthal quantum number (ℓ) is 0, the first electron is in an s orbital. An s orbital can hold a maximum of 2 electrons, and when two electrons are in the same orbital, they must have opposite spins.

Therefore, the quantum numbers for the second electron added to this orbital must be:

   Principal quantum number (n) = 3

   Azimuthal quantum number (ℓ) = 0

   Magnetic quantum number (mℓ) = 0 (since the s orbital has only one orientation)

   Spin quantum number (ms) = +½ (since it must have the opposite spin to the first electron, which has ms = -½).

For such more questions on Quantum number

https://brainly.com/question/25786066

#SPJ4

Many agricultural practices involve the emission of greater amounts of methane. The two agricultural practices which result in methane emission is manure management techniques and rice cultivation. The correct options are C and D.

The methane is defined as the simplest hydrocarbon with a chemical formula CH₄. It contains four 'H' atoms and one 'C' atom and it is the simplest alkane.

The main sources of methane emissions from agriculture are enteric fermentation, manure management, rice cultivation and residue burning. The production of methane also occurs animal wastes. Methane emissions occurs from paddy rice when soils are flooded.

Thus the correct options are C and D.

To know more about methane, visit;

https://brainly.com/question/2127750

#SPJ1

Vehicles & power plants are the two sources does most urban NO arise.

Nitric oxide, also known as thermal Nitric oxide, is created when atmospheric nitrogen is burned at high temps. Some of the nitrogen and oxygen gases in the air passing through the flame combine to create NO at high flame temperatures.

N2 + O2 in a combustion produces 2 NO.

Two sources are power facilities and vehicles.

NOX, which is spelled "nox," is the collective name for Nitric oxide and NO2 in the air.

Nitric oxide, also known as fuel NO, is created when nitrogen atoms found in fuel molecules undergo decomposition. A fuel's nitrogen is typically transformed to NO at a rate of 30 to 60% during combustion. The majority of fuels don't have much nitrogen in them, so this process only contributes to a tiny portion of NO emissions.

Learn more about Nitric oxide-

https://brainly.com/question/29654508

#SPJ4

Complete question is-

What is the chemical reaction by which

thermal NO is produced? From which two sources

does most urban NO arise? What is meant by the

term NOX? What is meant by fuel NO?

As per the given reaction, it is an exothermic reaction. Hence, as the temperature decreases, the reaction shifts to forward reaction to form more carbonic acid.

Carbonic acid is an inorganic acid formed by the combination  of  water and carbon dioxide with higher concentration of water. It is an exothermic reaction. Hence, produce heat to the surroundings.

Carbonic acid is formed in the forward direction of the reaction. The reaction is exothermic and decrease in temperature  leads to forward reaction.

Similarly the produced carbonic acid if removed from the system, the system again tends to produce more carbonic acid.

Find more on carbonic acid :

https://brainly.com/question/7095916

#SPJ1

Option C. polar covalent bond. When carbon and oxygen atoms bond, they form a covalent bond, which is a type of chemical bond where atoms share electrons.

The oxygen atom has a higher electronegativity value than the carbon atom, meaning it has a stronger pull on the shared electrons. As a result, the electrons in the bond spend more time around the oxygen atom, giving it a partial negative charge, and less time around the carbon atom, giving it a partial positive charge. This results in a polar covalent bond, where the electrons are not equally shared between the atoms, but rather shifted toward the more electronegative oxygen atom.

Learn more about covalent bond here: brainly.com/question/19382448

#SPJ4

Matter is classified as a substance or a mixture of substances.

Pure substances and mixtures are the two subgroups of matter. Elements and compounds are formed through the further division of pure substances.

Physically coupled structures known as mixtures can be disassembled into their component parts. One particular sort of atom or molecule makes up a chemical compound.

A spectrophotometry experiment involves spectrophotometer, blank solution ,sample solutions and cuvette .

Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution. The basic principle is that each compound absorbs or transmits light over a certain range of wavelength.

This measurement can also be used to measure the amount of a known chemical substance. Spectrophotometry is one of the most useful methods of quantitative analysis in various fields such as chemistry, physics, biochemistry, material and chemical engineering and clinical applications.

Learn more about spectrophotometer,here:

https://brainly.com/question/24195565

#SPJ1

2.745 moles of lead will react with 5.49 moles of fluorine to produce 2.745 moles of lead(IV) fluoride, according to the balanced equation.

What is Balanced Chemical Equation?

A balanced chemical equation is a written representation of a chemical reaction, with the number and type of atoms on both sides of the equation being equal. This means that the mass and charge are conserved in a chemical reaction.

A balanced chemical equation contains the reactants on the left side of the equation and the products on the right side, separated by an arrow indicating the direction of the reaction. The coefficients in front of the chemical formulas indicate the number of molecules or moles of each reactant or product involved in the reaction.

The balanced chemical equation for the reaction between lead and fluorine to form lead(IV) fluoride is:

1 Pb + 2 F₂ → 1 PbF₄

According to the equation, it takes 1 mole of lead (Pb) to react with 2 moles of fluorine (F₂) to produce 1 mole of lead(IV) fluoride (PbF₄).

If 5.49 moles of fluorine react, we need half as many moles of lead, since the mole ratio of lead to fluorine is 1:2. Therefore, the amount of lead required is:

5.49 moles F₂ × (1 mole Pb / 2 moles F₂) = 2.745 moles Pb

So 2.745 moles of lead will react with 5.49 moles of fluorine to produce 2.745 moles of lead(IV) fluoride, according to the balanced equation.

Learn more about Balanced Chemical Equation from given link

https://brainly.com/question/29367108

#SPJ1

The prefix "3-" in the name serves as a reminder that the 3-methyl group (CH3) is joined to the benzene ring at the third carbon position (counting from the carboxylic acid group).

The benzene ring has a carboxylic acid functional group (-COOH) joined to it at the first carbon position. Acid 3-methylbenzoic An organic substance with the chemical formula C8H8O2 is 3-methylbenzoic acid. It is a member of the family of aromatic carboxylic acids known as benzoic acids. The melting point of 3-methylbenzoic acid, a white crystalline solid, is 167–169 °C. It is only weakly soluble in water, although it is soluble in ethanol and ether, among other organic solvents. It frequently serves as a fundamental component in the creation of other organic compounds.

[tex]CH3 | / \ / \ / \H3C O // / \ / \ / \ / \ C OH \ / \ / \ / \ / C | C | C | H[/tex]

learn more about methylbenzoic  here:

https://brainly.com/question/16244293

#SPJ4

1.057 x 10²⁴ iron atoms are present in 1.75 moles of iron.

To calculate the number of iron atoms in 1.75 moles of iron, we can use Avogadro's number, which is approximately 6.022 x 10²³ particles per mole.

First, we need to determine the number of iron atoms in one mole of iron. The atomic mass of iron is 55.85 g/mol, which means that one mole of iron contains 6.022 x 10²³ atoms.

Therefore, to find the number of iron atoms in 1.75 moles of iron, we can multiply the number of moles by Avogadro's number:

1.75 moles × 6.022 x 10²³ atoms/mole

= 1.057 x 10²⁴ iron atoms

To know more about atoms here

https://brainly.com/question/29695801

#SPJ4

True.

Yes , Colligative properties depends only on the solute concentration and not on the identity of solute.

Colligative properties are those properties of solutions that depend on the ratio of the number of solute particles to the number of solvent particles in a solution, and not on the nature of the chemical species present.

The definition of colligative properties itself says the above stated statement is true or false .

Colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.

To know more about colligative properties refer:

https://brainly.in/question/18459509

#SPJ4

Heat energy will transfer from the 300 K side to the 75 K side due to the difference in temperature. The barrier will prevent the heat energy from transferring back to the 300 K side, so the heat energy will remain on the 75 K side.

Heat energy is a form of energy that is produced when molecules move faster and have more kinetic energy. It is the transfer of energy from a hotter object to a cooler object and is a form of thermal energy. Heat energy is used in many everyday activities such as cooking, heating buildings, and running industrial processes. Heat energy can also be used to generate electricity by using steam turbines and other methods. Heat energy can also be used to produce mechanical energy to drive machinery. Heat energy is essential for life on earth as it helps to keep organisms warm and sustain certain chemical reactions that are vital for survival.

To learn more about Heat energy
https://brainly.com/question/878982
#SPJ1

Sublimation is the term used for the phase change in which a solid goes directly to the gas state.

Generally, sublimation is defined as the process in which a solid usually transforms into a gas phase without first melting in order to form a liquid phase.

Sublimation is generally defined as the conversion of a substance from the solid to the gaseous state without becoming liquid. Let's consider an example, is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature. The phenomenon is the result of vapor pressure and temperature relationships.

Hence, sublimation is the term used for the phase change in which a solid goes directly to the gas state.

Learn more about sublimation from the link given below.

https://brainly.com/question/29304516

#SPJ4

The term volume represents how much space an object or the substance takes up. Here the space occupied by lead in 900.0 g can of paint is  0.079 L.

The volume is the measure of the capacity that an object holds. For example if a beaker can hold 100 mL of water, then its volume is said to be 100 mL. The SI unit of volume is m³.

The equation used to calculate the volume is:

Density = Mass / Volume

Volume = Mass / Density

Density of lead = 11.34 g/cm³

Volume = 900.0 g / 11.34 g/cm³

= 79.36 cm³

1  cm³ = 0.001 L

79.36 cm³ = 0.079 L

Thus the lead occupies 0.079 L space.

To know more about volume, visit;

https://brainly.com/question/17200307

#SPJ9

The concentration of salt in ocean water varies, but on average it is about 35 grams of salt per liter of water. Using this information, we can calculate the amount of salt in 1.5 L of ocean water solution as:

35 g/L * 1.5 L = 52.5 g

Therefore, there are approximately 52.5 grams of salt dissolved in 1.5 L of ocean water solution. It is important to note that the exact concentration of salt in ocean water can vary depending on factors such as location and depth, but this calculation provides a rough estimate based on average values. The compound formula for salt in this context is NaCl (sodium chloride).

Answer and Explanation:

To convert 120 kPa to atmospheres, we can use the following conversion factor:

1 atmosphere = 101.325 kPa

We can use this conversion factor to set up a proportion and solve for the number of atmospheres.

120 kPa * (1 atm / 101.325 kPa) = 1.184 atm

Therefore, 120 kPa is equivalent to approximately 1.184 atmospheres (rounded to three decimal places).

The hybridization are of different types like sp³, sp², sp, etc. The percentage of 's' and 'p' character in these hybrid orbitals will be different. The percentage of p character in the hybrid orbitals of methane and water is 75%. The correct option is A.

The process in which the hybrid orbitals are produced by the linear combination of atomic orbitals of the same atom is defined as the hybridization. The orbitals undergoing hybridization have comparable energies.

Each sp³ hybrid orbital has 25% 's' character and 75% 'p' character. Here both methane and water have sp³ hybridization. The  sp³ hybrid orbitals are oriented in a tetrahedral manner and the bond angle is 109°28¹.

Thus the correct option is A.

To know more about hybridization, visit;

https://brainly.com/question/12581806

#SPJ1

Your question is incomplete, but most probably your full question was:

What is the percentage of p character in the hybrid orbitals on the carbon atoms in this structure of methane and water?

A. 75%

B. 25%

C. 50%

D. 33%

E. 12%

Rounding this to one decimal place gives 299.5 cal/g ≈ 0.3 cal/g, which is likely why 0.3 was given as the answer.

What is Energy?

Energy is a property of objects or systems that can be transferred to other objects or systems, or converted into different forms. It is a scalar physical quantity that can be defined as the ability to do work or produce heat. Energy exists in many forms, such as mechanical, thermal, electrical, chemical, nuclear, and electromagnetic, and can be transformed from one form to another. The SI unit of energy is the joule (J), but other units such as the calorie (cal) or the electronvolt (eV) are also commonly used in different contexts.

To convert the energy from joules per gram to calories per gram, we can use the conversion factor 1 calorie = 4.184 joules.

Thus, to find the energy of the snack in Calories/gram, we can divide the energy in joules/gram by the conversion factor:

1,254 J/g ÷ 4.184 J/cal = 299.5 cal/g

Rounding this to one decimal place gives 299.5 cal/g ≈ 0.3 cal/g, which is likely why 0.3 was given as the answer.

Learn more about Energy from given link

https://brainly.com/question/13881533

#SPJ1

The units for the rate constant K, for the zero - order reaction is mol L⁻¹s⁻¹. The correct option is a.

The rate of the chemical reaction is defined as when rate is the directly proportional to the product of the concentrations terms of  moles and  of the two of the reactants, and the square of the molar concentration of the such reactant if there is only the one, is called as the bi-molecular kinetics. The Second-order reaction rates are that which is the inversely proportional with the square of the reactant's concentration and the product of concentrations of the two reactants.

The rate law expression for the zero order reaction is Rate = k[A]°

The unit rate constant K = mol L⁻¹s⁻¹. Therefore option a is correct.

To learn more about  rate constant  here

https://brainly.com/question/26127112

#SPJ4

More firmly than the substrate, an enzyme binds the product. False. An enzyme only has one use before it is no longer functional in the cell.

An enzyme's active site binds the reaction's substrate more firmly than the transition state intermediate does.

In a location on the enzyme molecule known as the active site, enzymes precisely and tightly bind both reactant molecules (referred to as the substrate) (Figurebelow).

Enzymes place reactants correctly so they do not have to resist intermolecular forces that would otherwise drive them apart by binding reactants at the active site. The molecules can now interact with less energy because to this.

Using alternate routes with lower activation energies may also be made possible by enzymes.

Learn more about substrate here:

https://brainly.com/question/11370054

#SPJ4

False, Enzymes are biological catalysts that facilitate chemical reactions by lowering the activation energy required for the reaction to occur.

Enzymes do this by binding to the substrate(s) involved in the reaction and forming an enzyme-substrate complex. This complex is held together by a variety of non-covalent interactions such as hydrogen bonds, van der Waals forces, and hydrophobic interactions.

In some cases, the product(s) of the reaction may also bind to the enzyme, forming an enzyme-product complex. However, this complex is typically less stable than the enzyme-substrate complex, as the enzyme has evolved to release the product(s) once they are formed. The enzyme-substrate complex is usually held together more tightly than the enzyme-product complex, as the enzyme has a higher affinity for the substrate(s) than the product(s). Therefore, the statement "An enzyme binds the product more tightly than the substrate" is false.

Learn more about Enzymes:

brainly.com/question/14953274

#SPJ4