mg(hso3)2 decomposes into a solid x, h2o vapor, and so2 gas. if 186 g of mg(hso3)2 decomposes completely and leaves behind 40 g of solid x, what is the identity of x?

The balanced equation for the reaction in an acidic solution is:

BrO₃ -(aq) + 6 N₂H₄(aq) + 6 H+ (aq) → 3 Br₂(l) + 2 N₂(g) + 6 H₂O(l)

A chemical compound that facilitates the transfer of oxygen atoms during a redox reaction is referred to as an oxidizing agent, also known as an oxidizer or oxidant. Essentially, it aids in oxidation while reducing by acquiring hydrogen and oxygen or electrons from other reactants.

The oxidizing agent in this reaction is  BrO₃ - (bromine trioxide anion), which is reduced to Br₂(bromine) and gains electrons.

The reducing agent in this reaction is N₂H₄ (hydrazine), which is oxidized to N₂(nitrogen gas) and loses electrons.

The phase of reactant and products are in aqueous (aq) and liquid(l) and gas(g) phase.

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Phenomenon: This is a natural event that occurs in the atmosphere and is beyond human control, causing devastation to the environment, animals, and humans, and occasionally resulting in death.

Phenomenon is an observable occurrence which is not fully explained by any accepted scientific theory. It is usually seen as an unexpected or unusual event that has no apparent explanation. Phenomenon can range from the unusual and unexplained, to the commonplace and expected.

Flood: This is a result of heavy rain caused by typhoon mostly happened during rainy session.
Wave: Disturbances are spread from one location to another in a predictable and well organized manner. It is really loved by the suffers by it hates by the fishermen.

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The greenhouse gases which entirely the result of human activity is Chlorofluorocarbons.

Methane, Carbon dioxide, Nitrous oxide, and Chlorofluorocarbon all are greenhouse gases. But only Chlorofluorocarbon (CFC) is a greenhouse gas which is entirely produced by human activities.

Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals consisting atoms of carbon, chlorine, and fluorine. They are used in the production of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.

Research found that Chlorofluorocarbon could deplete Earth's atmospheric ozone layer, that blocks the sun's damaging ultraviolet rays. When the scientists reported their research results in 1974, CFCs were widely used as refrigerant gases and as propellants in aerosol sprays.

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Oceanic plate is driven downward at a boundary. Option C is the right answer.

Oceanic plates are tectonic plates that make up the Earth's ocean floor. They are denser and thinner than continental plates and underlie the world's ocean basins. The movement of oceanic plates is responsible for the creation of mid-ocean ridges and subduction zones, which are key features of plate tectonics.

Tectonic plates are large pieces of Earth's lithosphere that move and interact, causing earthquakes, volcanic eruptions, and the creation of mountains. There are seven major and several minor plates on Earth. The movement and collision of these plates create plate boundaries such as divergent, convergent, and transform.

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The following which is not a property of an ionic compound is low boiling point  and is therefore denoted as option C.

This is referred to as a type of chemical compound where the oppositely-charged ions of a metal and a nonmetal are attracted to each other to form an ionic bond.

Ionic compounds usually have high melting and boiling point due to the strong electrostatic forces between the atoms. It is also usually very hard and brittle in nature and the molten compound conducts electricity and heat very well which is therefore why option C was chosen as the correct choice.

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Yes, precipitation of Cu(OH)₂ solid will form when 0.075 g of KOH is dissolved in 1.0 L of 1.0 X 10⁻³ M Cu(NO₃)₂.

Chemical reactions begin with reactants, and the products of a reaction are the substances that were produced. The common chemical formula can be used to represent a chemical reaction: Reaction products. During chemical reactions, bonds shatter and reform. Also, the opposite outcome of the reaction happens.

[OH⁻]₀ = 0.075g/56.105g/mol(1.01) = 1.34×10⁻³

Cu(OH)₂ (s) ⇄ Cu²⁺ (aq) + 2OH⁻(aq)

?                       0.0010       1.34×10⁻³

Q = [Cu²⁺][OH⁻]² =  0.0010 ×(1.34×10⁻³)² = 1.8×10⁻⁹ > Ksp 2.2×10⁻²⁰

This means equilibrium will shift to the left, i.e., to reactants in which in turn implies that solid Cu(OH)₂ will form.

moles Cu²⁺= 1.L x 1 x 10⁻³ M= 10⁻³

moles KOH = 0.075 g/ 56.107 g/mol=0.00133

[Cu²⁺]=  10⁻³ / 1. L= 10⁻³  M

[OH⁻]=0.00133 / 1.L= 0.00133  M

Qsp=  10⁻³ (0.00133)² =1.786 x 10⁻⁹ >> Ksp ( = 2.2 x 10⁻²⁰)

precipitation should occur.

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A gallon of water has a mass of 37.85 hectograms, which is equal to 3785 grams.

H2(g)+2ICl(g) → 2HCl(g)+I2(g)H2(g)+2ICl(g)→2HCl(g)+I2(g). The most likely explanation for the disparity between step 1 and 2 rates is either of the following.

A white precipitate is produced as nothing more than an outcome of a reaction which the bonds between it proteins of the reactant and product are shattered and new bonds. A chemical equation essentially explains how reactants lead to products using mathematics.

They are phrases that use chemical symbols and formulae to represent catalysis. The reactants are depicted on left in a simple reaction, while the products are shown on the right.

Rate of reaction is equal to the quantity of reactant utilized divided by the time it takes for the reactant to be consumed.

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The complete question is-

Step 1:H2(g)+ICl(g)→HI(g)+HCl(g)(slow)Step 2:HI(g)+ICl(g)→HCl(g)+I2(g)(fast)The reaction is carried out at constant temperature inside a rigid container. Based on this mechanism, which of the following is the most likely reason for the different rates of step 1 and step 2 ?

The naming ionic compounds  the structural units that make up ionic compounds are cations as positively charged specie and the anions , negatively charged species.

The the structural units that make up ionic compounds are cations as positively charged specie and the anions , negatively charged species. There are some rules given below :

1) The name of the cation is by the name of the anion.

2) If cation has fixed charge then the name is same as  element.

3) For naming the anion the name of the element is used with the suffix ide.

The some examples are :

CaO = calcium oxide

AlN = aluminum nitride

Fe²⁺ = ferrous

Fe³⁺ = ferric

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We may determine the amount of atoms or molecules contained in every food item using the mole concept and avogadro's law. Number of molecules or atoms: 0.668 x 1023

The smallest unit of any substance that is made up of one or more elements and has the ability to live on its own while keeping all of the substance's physical and chemical properties is called a molecule. Within molecules, more atom division takes place. For instance, the atom and molecule of oxygen are represented by the letters O and O2, respectively.

Single, neutral particles make up an atom. As neutral objects consisting of two or more atoms joined together, molecules are. A positively or negatively charged particle is called an ion.

Molar mass = [(12 X 6) + (1 X 12) + (6 X16)] g/mol

= 72 + 12 + 96 = 180 g/mol

Thus molar mass of glucose (C6H12O6) = 180 g/mol

Number of mole = 20/180 = 0.111 moles

So, 0.111 moles of glucose will contain ( 0.111 X 6.023 X 1023) number of molecules or atoms

                            = 0.668 X 1023 number of molecules or atoms

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Although the kinetic energy average rises with temperature, there won't be many overt changes in volume or form.

Which energy do you understand by kinetic?

Describe kinetic energy. A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the transfer of energy, is performed on it by exerting a net force.

The kinetic energy is absent?

An item in motion has energy, which is called kinetic energy. Kinetic energy can be found in the motion of molecules in space, you walking down a street, and the earth rotating around the sun. The relationship between kinetic energy and an object's mass and square of its speed is direct: K.E. = 1/2 m v2.

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Condensed milk is more viscous than evaporated milk. This is because condensed milk has had the majority of its water content removed through evaporation, leaving a thicker, sweeter substance.

It is not appropriate to liken evaporated milk or condensed milk to a type of magma as Magma is molten rock that can be found under the Earth's surface while evaporated milk and condensed milk are dairy products. They do not have any relation with magma.

A molten rock, also known as magma when it is underground and lava when it erupts and flows on the surface, is a mixture of liquid rock, dissolved gases, and solid mineral crystals. It is formed deep within the Earth's crust and can be composed of a variety of elements such as silicon, oxygen, aluminum, and iron.

When it is erupted, the pressure and temperature decrease, causing the dissolved gases to escape and the solid mineral crystals to form, creating the solid rock we see on the surface.

Therefore, the correct answer is as given above

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At a temperature of 23 °C and a pressure of 0.788 atm, a gas has a density of 1.42 g/l and a molar mass of 44.04 g/mol.

The mass in grams of one mole of a substance is its molar mass. The molar mass of a substance can be found by adding the molar masses of its constituent atoms, as demonstrated in this video. The computed molar mass can then be used to convert between mass and the quantity of moles in the substance.

The mass of 6.022 10 23 atoms, molecules, or formula units make up one mole of a substance, which is known as the molar mass. This value is given in grams per mole.

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Making a 5 M solution Put 292 g of NaCl in 800 mL of water to dissolve it. H2O is used to adjust the volume to 1 L. dispense into aliquots, then autoclave to sanitize. The NaCl solution should be kept at room temperature.

To make a 5% saline solution, how many grams of NaCl are required?

Answer and justification NaCl is the solute and water is the solvent in a saline solution. In order to create 1 L of a 5% (w/v) saline solution, 50 g of NaCl are required.

How is a 5 mm solution made?

Thus, 1 liter of 5 mM NaCl is equal to 5 ml of 1 mM NaCl plus 995 ml of water. You won't need to be concerned about things like moles if you use this method. You merely need to know how to.

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Answer:

1.0 L

Explanation:

The principal quantum number of the original number is 4 and original level of electron is 2.

The Balmer series refers to to a series of spectral emission lines of the hydrogen atom that occurs when an electron moves from higher energy  levels to the energy level of n= 2.

Hence;

λ =  486.3 * 10^-9 m

RH = 1.097 * 10^7 m-1

nf = 2

ni = ?

Using the formula;

1/λ = RH (1/nf^2 - 1/ni^2)

1/486.3 * 10^-9 = 1.097 * 10^7 (1/4 - 1/ni^2)

2.06 * 10^6/1.097 * 10^7 = (1/4 - 1/ni^2)

0.188 = 1/4 - 1/ni^2

1/ni^2 = 1/4 - 0.188

1/ni^2 = 0.25 - 0.188

1/ni^2 = 0.062

ni^2 = 16

ni = 4

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[ OH−] of a solution that is 0.300 M in HCO3− is 3.24×10^-8 Molarity. and the oh of the solution is 7 .49

Part A: We know that HCO3- is a weak base, so it can be converted to H2CO3 (carbonic acid) through the following equilibrium:

HCO3- + H2O <=> H2CO3 + OH-

The Ka1 for H2CO3 is 4.3×10^-7, so we can use the following expression to find the [OH-]:

[H2CO3][OH-] = Ka1 * [HCO3-]

[OH-] = Ka1 * [HCO3-] / [H2CO3]

Since [H2CO3] is equal to [HCO3-], we can simplify this to: [OH-] = Ka1 * [HCO3-]^2

[OH-] = (4.3×10^-7) * (0.300)^2[OH-] = Ka1 * [HCO3-]^2 [OH-] = (4.3×10^-7) * (0.300)^2

[OH-] = 3.24×10^-8 M. So the [OH-] of the solution is 3.24×10^-8 Molarity.

Part B: To find the pH of the solution, we need to find the negative log of the [OH-].

pH = -log([OH-])

pH = -log(3.24×10^-8)

pH = 7.49

So the pH of the solution is 7.49.

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Both oxygen and sulfur will bond with the fewest number of hydrogen atoms (2); carbon will bond with the most (4).

The molecular configuration of a molecule is the permanent geometry that results from the spatial arrangement of its bonds.

The number of hydrogen required to attain the stable molecular configuration would result in 8 electrons in the outer p shell as carbon, nitrogen, oxygen sulfur,

The stability of atoms depends on whether or not their outer-most shell is filled with electrons. If the outer shell is filled, the atom is stable.

Atoms with unfilled outer shells are unstable, and will usually form chemical bonds with other atoms to achieve stability.

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A statement best describes the entropy that occurs when two gases are added to the same container: The gases will disperse and mix due to the increase in entropy for both gases.

Entropy is a thermodynamic quantity which measures the energy in a system per unit temperature that cannot be used to do work. Perhaps the most common manifestation of entropy is (following the law of thermodynamics), the entropy of a closed system always increases and under conditions of heat transfer, heat energy moves from the component with a higher temperature to the component with a lower temperature. In a system where the heat is isolated, the entropy only goes in one direction (not a reversible process). It is necessary to measure the entropy of a system to determine that energy cannot be used to do work on thermodynamic processes.

These processes can only be carried out by energy that has been transformed, and when energy is converted into work, it theoretically has a certain maximum efficiency. During the work/effort, entropy will accumulate in the system, which then is dissipated in the form of wasted heat.

In classical thermodynamics, the concept of entropy is defined in the second law of thermodynamics, which states that the entropy of an isolated system always increases or remains constant. Thus, entropy can also be a measure of the tendency of a process, whether the process tends to be "entropy" or will proceed in a certain direction. Entropy also shows that heat energy always flows spontaneously from an area with a higher temperature to an area with a lower temperature.

Thermodynamic entropy has the dimensional energy divided temperature, which has International Units joules per kelvin (J/K).

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A pure substance should ideally show up as a network of big crystals after recrystallization. If not, it might be beneficial to reheat the flask and let the contents cool more gradually.

Recrystallization is the process through which crystal structure's grain grains adopt a new structure or new crystal form. Recrystallization is a process that is difficult to define precisely because it is closely related to a number of other processes, most notably recovery and grain growth. As soon as boiling is observed during recrystallization, solvent should be added to the mixture. More solvent should be added as soon as boiling starts up again. The solution is homogenized by repeating this process.

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Answer:The moles of carbon dioxide produced from 100 g methane is 6 moles.

Explanation: Balanced Equation. CH4+2O2 → CO2+2H2O.

The combustion of 2.00 mol of [tex]CH_4[/tex] produces approximately 72.08 grams of [tex]H_2O.[/tex] All the options given are incorrect.

Combustion is a chemical reaction that occurs between a fuel and an oxidizing agent basically in presence of oxygen, typically producing heat and light.

To determine the mass of [tex]H_2O[/tex] produced by the combustion of 2.00 mol of [tex]CH_4[/tex], we need to use the stoichiometric ratio between [tex]CH_4[/tex]and [tex]H_2O[/tex] in the balanced chemical equation.

From the balanced equation: [tex]CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O[/tex]

We can see that for every 1 mole of [tex]CH_4[/tex], 2 moles of [tex]H_2O[/tex]are produced. We can see that for every 1 mole of [tex]CH_4[/tex], 2 moles of [tex]H_2O[/tex]are produced.

Given that we have 2.00 mol of [tex]CH_4[/tex], we can calculate the moles of [tex]H_2O[/tex]produced:

2.00 mol [tex]CH_4[/tex] × (2 mol [tex]H_2O[/tex]/ 1 mol [tex]CH_4[/tex]) = 4.00 mol [tex]H_2O[/tex]

Now, we can calculate the mass of [tex]H_2O[/tex]produced using the molar mass of water ([tex]H_2O[/tex]), which is approximately 18.02 g/mol:

Mass of [tex]H_2O[/tex] = Number of moles of [tex]H_2O[/tex]× Molar mass of [tex]H_2O[/tex]

Mass of [tex]H_2O[/tex] = 4.00 mol × 18.02 g/mol = 72.08 g

Therefore, the mass of [tex]H_2O[/tex] produced by the combustion of 2.00 mol of [tex]CH_4[/tex] is approximately 72.08 grams.

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The volume of Iron (II) bromide solution is 2.13 x [tex]10^{2}[/tex] ml.

A milliliter is a smaller metric unit that represents the volume or the capacity of a liquid. It is used to measure a smaller quantity of liquid and is equal to a thousandth of a liter. It is denoted with an abbreviation ml or mL.

Liters and milliliters are metric units of volume which are used to measure the capacity of a liquid. The capacity of a liquid can be measured in milliliters, centiliters, liters and kiloliters. Though all these units represent the same quantity, their values differ. In this page, we will find the relation between liters and milliliters and the conversion between these units.

Volume is a three-dimensional quantity that is used to measure the capacity of a solid shape. It means the amount of three-dimensional space a closed figure can occupy is measured by its volume.

Given,

Concentration of iron(II) bromide = 1.29 mo/L

Moles of iron(II) bromide = 275 mmol = 0.275 mol

conversion used : 1 mmol = 0.001 mol

Volume of iron (II) bromide = Concentration of iron (II) bromide

Volume of iron (II) bromide = 0.275/1.29 = 2.13 L = 2.13 x 10² ml

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According to the given question the both options c) and d) are correct .If a molecule absorbs Infrared electromagnetic energy, it stretches and bends.

TV and radio waves, radios, infrared rays, photons, exposure to ultraviolet, X-rays, and cosmic rays are all examples of electric waves that propagate across space independently of matter.

A molecule vibrates when it takes in IR electromagnetic energy.

This causes the atoms of the molecule to collide elastically.

Vibration modes

This include the following:

Stretching ,Bending

This is the reason why both C and D have been the most popular choices.

appropriate.

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The Complete question :

when a molecule absorbs ir electromagnetic energy, what are the vibrational modes affected?

a) electron spin ionization

b) proton spin

c) stretching

d) bending

Citric acid with a pH of 7 can be prepared from the following reagents.

The preparation of 500 ml of pH 7 citric acid requires a combination of the following reagents: 1.8 m citric acid, 1.2 m sodium dihydrogen citrate, 1.5 m sodium hydrogen citrate, 0.8 m sodium citrate, 0.1 m HCl, and 0.1 m NaOH.

Begin by dissolving the citric acid in 500 ml of distilled water. Gradually add the sodium dihydrogen citrate and sodium hydrogen citrate, stirring continuously until the solution is homogenous.

Then, add the sodium citrate while stirring until the solution is homogenous. Finally, adjust the pH to 7 using 0.1 m HCl and 0.1 m NaOH while stirring until the desired pH is achieved.

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In a chemical equation, the formula of a substance in water solution is followed by the symbol. This statement is true.

The subscript (aq) following a molecule in a chemical equation indicates that it is aqueous. Aqueous solutions are those in which the solvent is water. Chemical reactions may be represented quickly using symbol equations. They demonstrate which atoms are involved and how they are linked together. Symbol equations are always in the form of reactants products. A + symbol denotes the separation of two or more reactants or products.

A response arrow simply indicates that something has changed and that one item has become another. The arrow leads from the old object (what responded) to the new thing (the thing that formed). An “equation of reaction” employs the reaction arrow.

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Answer:

meeting our basic needs of food, clothing, shelter, health, energy, and clean air, water, and soil.

Explanation:

hope this helps

The temperature at which it volume doubled at the same pressure​ is 600 kelvin.

Given that,

initial volume (V₁) = 150 cm³

final volume (V₂) = 300 cm³

initial temperature (T₁) = 27⁰C

                    = (273 + 27) K = 300 K

final temperature (T₂) = ?

As we know from Charles's law:

V₁/T₁ = V₂/T₂

or, 150 / 300 = 300 / T₂

or, T₂ = 600 K

The ideal gas volume at constant pressure is exactly proportional to its absolute temperature, as stated by Charles' law. According to Charles' law, the temperature in degrees Kelvin is directly proportional to volume if the pressure on a dry gas sample remains constant.

Charles Law is used in everyday life in ways like hot air balloons in the sky. The flame heats the air inside the balloon, accelerating and dispersing the air molecules.

The balloon can simply float because the air inside is less dense than the air outside.

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colorless liquid, clear solution, microcrystalline solid, white solid in statement above is quantitative data. The mass and volume both include significant numbers of 3 and 2, respectively.

A tasteless and colorless liquid, pure water has neither. We can conclude that the provided liquid is pure water if it boils at 100 °C (373 K) and freezes at 0 °C (273 K) both at 1 atmosphere pressure.

Water, often called as the universal solvent, is a flavorless and odorless chemical that is necessary for all known forms of life. Small concentrations are colorless to the unaided eye. On Earth, it covers around 70% of the surface.

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The total number of protons are 6 and the total number of neutrons are 7 in an atom of the naturally occurring carbon isotope with the largest mass number.

Isotopes of almost all elements save hydrogen get their names from the mass number of their nuclei. Carbon atoms, for instance, have a mass number of 12 since the sum of their six protons and six neutrons equal 12. As a result, these atoms are referred to as carbon-12. The atomic mass of carbon atoms with seven neutrons is 13, which is equal to six protons plus seven neutrons. The isotope known as carbon-13 can be found in these atoms.

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Matter can be broken down into two categories: pure substances and mixtures.

We are surrounded by matter, which is anything that takes up space and has mass. As matter, solids and liquids are more visible. The three states of matter most frequently encountered on earth are solids, liquids, and gases. A solid has a distinct shape and is unyielding. A liquid flows and conforms to a container, but when gravity acts on it, it creates a flat or slightly curved upper surface. A gas adopts the volume and shape of its container.

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.

A pure material is something that exclusively comprises one type of matter, according to the definition. Any sample of this substance that you examine must have exactly the same item, with a fixed, specific set of qualities. This might either be one single element or one single compound. Because there is no atom-to-atom connection between the atoms of the constituent substances in a mixture, mixtures may always be split back into their individual pure components.

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