n this experiment, two equivalents of benzaldehyde were used, and the desired product was dibenzylideneacetone. how can you use the attached proton nmr of the product to show that you did not isolate the product of a single aldol condensation (that is, benzylideneacetone).

When 4.9 g of phosphoric acid and 7.45 g of ammonia combine, 7.45 g (NH4)3PO4 of ammonium phosphate is created.

Further assisting growth and root development is the supply of nitrogen to the surrounding soil, which is frequently accomplished using fertilizers containing ammonium phosphate. Because of its solubility, it can be quickly released into the soil, helping young plants and plants in need of revival.

The inorganic chemical with the formula (NH4)3PO4 is called ammonium phosphate. It is the orthophosphoric acid ammonium salt.

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When Hg2Cl2 reacts with NH3 and it undergoes the redox reaction and it forms the following products and here Hg in liquid state and HgNH2Cl is in solid state and then Nh4Cl is in aqueous form so the net ionic equation is as follows:

Hg2Cl2(s) + NH3(aq) → Hg(l) + HgNH2Cl(s) + NH4Cl(aq)

What is redox reaction?

Redox reactions consist of two halves, a reduced half and an oxidized half, and always occur simultaneously. The reduced half gains electrons and decreases its oxidation number, and the oxidized half loses electrons and increases its oxidation number. An easy way to remember this is a mnemonic device called OIL RIG. This means "oxidation is loss" and "reduction is gain". In a redox reaction, there is no net change in the number of electrons. What is released in the oxidation half-reaction is incorporated into another species in the reduction half-reaction.

Two species that exchange electrons in a redox reaction have special names. An ion or molecule that donates

electrons is called a reducing agent. It reduces other species by donating electrons.

So what is oxidized is the reducing agent and what is reduced is the oxidizing agent.

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The balanced half reaction of the nitrate ion reacting to form nitrogen monoxide in acidic solution is:

NO3 (aq) + 3e + 4H* (aq) → NO (g) + 2H2O (l)

A solution that contains more positively charged hydrogen ions (H) than negatively charged hydroxide ions is said to be an acid. Vinegar and lemon juice are two typical examples of acids. A base contains more OH ions than an acid. Baking soda and household ammonia are typical examples.

Redox reaction balancing is slightly more difficult than conventional reaction balancing, but still adheres to a straightforward set of guidelines. One significant distinction is the requirement to understand the half-reactions of the relevant reactants; a half-reaction table is extremely helpful in this regard. Because two half reactions can be added to create a total net equation, half-reactions are frequently helpful.

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The Valence Shell Electron Pair Repulsion (VSEPR) theory allows us to predict the molecular shapes of molecules by determining the electron pair repulsion around the central atom.

This theory states that electron pairs will repel each other and will attempt to stay as far away from one another as possible, resulting in the most stable arrangement.

The Valence Bond Theory provides additional insight into molecular geometry by looking at the overlap of atomic orbitals in a molecule. The overlap of the orbitals determines the strength of the chemical bonds in the molecule and provides further insight into the molecular geometry.

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Answer:

The answer should be that a constant pressure is applied to both cylinders and they are balanced chemical equations for the reaction between nitrogen oxygen.

Explanation:

When propane is burned with oxygen present, carbon dioxide, water, and heat are produced.

Its primary applications include home or water heating, food preparation and storage, clothing drying, and the powering of industrial and farm machinery. The production of plastics and other chemicals in the chemical sector sometimes utilizes propane as a raw ingredient.

Propane is created using the liquid byproducts that are gathered during the gas processing process. Some of these ingredients include the heavier hydrocarbons propane, methane, lpg, butane, and others. Among other gases produced during the petroleum refining industry are propane and butane.  A distinguishing scent is modified to make something detectable despite being nearly odourless, safe, and colourless.

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Answer:

carbon dioxide

Explanation:

hope i helped

The molecule that has the most energy is carbon dioxide. The correct option is a.

Energy can be internally transformed into any other kind of energy, even if it cannot be created or destroyed in an isolated system.

Nuclear reactions release energy that heats the steam that turns a turbine, producing electricity. The formula "KE + PE = const" can be used to express the conservation of mechanical energy.

Through a variety of conversion processes,  carbon dioxide can be used to create fuels and chemical intermediates, but doing so requires a large amount of energy.

Natural gas carbon dioxide is a byproduct of many energy production processes and is essential to the carbon cycle for life. Additionally, it is a greenhouse gas.

Therefore, the correct option is a. carbon dioxide.

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The decomposition of nickel (II) oxide can be written as; 2NiO (s) ---->2Ni(s) + [tex]O_{2}[/tex] (g)

We know that a reaction is said to be balanced when the number of atoms on the reactant side is equal to the number of atoms of the same element on the products side.

Now we are asked to obtain the balanced reaction equation that can be written for the reaction that involves the decomposition of nickel (II) oxide to its elements. This decomposition reaction would lead to the formation of nickel and oxygen.

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H2SO3 is an acid because it can donate two H+ ions. Every bond is covalent. It is therefore a molecular substance. Magnesium fluoride is an example of an ionic compound, which is made up of a cation and an anion. Ionic N2O5 is a solid.

H2O molecules are found in water, which has two hydrogen atoms for every one oxygen atom in its chemical composition. A chemical compound called sodium chloride is created when sodium (Na) and chlorine (Cl) are combined in a 1:1 ratio.

Examples of typical ionic compounds include: sodium chloride, or NaCl (table salt) sodium bicarbonate, or NaHCO3 (baking soda) sodium carbonate, or Na2CO3 (washing soda) Magnesium sulfate, or MgSO4 (epsom salt).

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2NO(g) + Br2 (g) The equilibrium concentration of NOBr(g) was 0.127 when she added 0.164 moles of NOBr(g) to a 1.00 liter container. When she added 0.146 moles of and 0.111 moles of into a 1.00 liter container, a student conducted the reaction in the lab at 276 k.

What is equilibrium concentration?

The equilibrium concentration of I2(g) was found to be 3.79 x 10-2 M when she added 0.382 moles of HI(g) to a 1.00 liter container.  the equilibrium constant if 25mL of H2 and 20mL of I2 are initially present in a container and 30mL of HI is generated at equilibrium Medium. A student carried out the subsequent reaction in a lab setting at 656 K, N2(g) + 3H2 + 2NH3(g) (g) she filled a 1.00 liter with 6.8710-2 moles of NH3(g).

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Answer:

Covalent bonds.

Explanation:

Please give the brainliest.

Answer: chemical bonds

Explanation:

PCC is a selective oxidizing agent and oxidize the Alcohol to aldehyde and ketone.

CrO3 is a strong oxidizing agent and oxidize the Alcohol to Carboxylic acid.

Claisen condensation reaction gives beta keto ester.

Last reaction is an example for intramolecular Aldol condensation.

What are the applications of cyclopentanol?

(1) Cyclopentanol is used in medicines, dye preparations and spices, and can also be used as a solvent for medicines and spices.

(2) Used in organic synthesis intermediates, used in the production of medicines, dyes and spices, also used as a solvent for medicines and spices.

Therefore,

PCC is a selective oxidizing agent and oxidize the Alcohol to aldehyde and ketone.

CrO3 is a strong oxidizing agent and oxidize the Alcohol to Carboxylic acid.

Claisen condensation reaction gives beta keto ester.

Last reaction is an example for intramolecular Aldol condensation.

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the theoretical yield of the reaction is 70.97%

Calculation :

Initially, 6CO₂ +H₂O ---> C₆H₁₂O₆ +6o₂

18.6 moles  2.38*10² g

since , mole = weight / molar wt

(mole )H₂O = 2.38*10² /18 = 13.2

6 moles of CO₂ reacts with 6 moles of H₂O .

so, 13.2 moles of H₂O will react with 13.2 moles of CO₂

produced C₆H₁₂O₆ = 13.2/6 = 2.20 mole

remaining CO₂ = 18.6 - 13.2 = 5.4

generally theoretical yield is 100%

here , moles of C₆H₁₂O₆ should be produced = 18.6/6 = 3.1

so the Theoretical yield = (2.2/3.1)*100 = 70.37 %

Real-world chemical reactions don't always go as planned on paper. During the course of an experiment, many things contribute to the production of less product than expected.In addition to spills and other experimental errors, losses often occur due to incomplete reactions and unwanted side reactions. A chemist needs to measure how successful a reaction is. This measurement is called percent yield.

To calculate the yield, you need to determine the amount of product produced based on stoichiometry. This is called the theoretical yield and is the maximum amount of product that can be formed from a given amount of reactants. The actual yield is the amount of product actually obtained from performing the reaction in the laboratory. Recovery is the ratio of actual recovery to theoretical recovery, expressed as a percentage:

Recovery = Actual Recovery Theoretical Recovery × 100%

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You must remember that there will be a rearrangement. So, you should get is 1-chloro-2-methylcyclopentane.

What is organic product?

With very few exceptions, a chemical is regarded as organic if it contains at least one carbon atom, regardless of its source. Organic chemistry is sometimes referred to as "the chemistry of carbon" due to the fact that the carbon atom is normally bonded to at least one hydrogen atom.

What is reaction?

In a chemical reaction, one or more substances—also known as reactants—become one or more new substances, also known as products. Both chemical components and elements are substances.

Therefore,  You must remember that there will be a rearrangement. So, you should get is 1-chloro-2-methylcyclopentane.

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A double replacement equation will not result in a reaction if both products are soluble.

When two ionic compounds exchange ions to create two new ionic compounds, this is known as a double replacement reaction. An illustration of this kind of answer is the following: AD + CB + CD + AB.

Since salt is an insoluble substance that won't dissolve in water, we use the symbol (s) for solid. If there had been no precipitate formation, the silver, fluoride, potassium, and chloride ions would have in fact relocated to a different site, but they would still be floating around as ions. In this case, nothing happens.

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140 mg of Pb are present in 0.14 ml of water, which is the amount of anything per unit volume, area, or length.

What is density, for instance?

How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a brick of the harder, light element gold (Au) would be denser than a block of a heavier element led (Pb) (Au). Styrofoam blocks are less dense than bricks. Weight per unit volume is how it is defined.

Is water a good illustration of density?

Density is essentially the mass of a substance per unit volume. Water has a density of about 1 gram per milliliter, however this might vary depending on temperature or the things that are dissolved in it.

Briefing:

density = mass / volume      (i)

Given mass of the Pb in milligram ( mg ) = 140 mg

Given mass of the Pb in gram ( g ) = 140 ×  = 0.14 gram

Given density = 1.0 g/ml

We have to find volume of water in milliliter ( ml ) .

Equation I gives us the amount of water in milliliters when we enter the mass of the Pb, lead, and density ( ml ).

density = mass / volume

1.0 g/ml  =  0.14 gram / volume

volume =  0.14 gram / 1.0 g/ml = 0.14ml

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The empirical formula for the compound is [tex]PCl_{3}[/tex]

The empirical formula of a compound is the formula in which the atoms of all the elements are present in their simplest whole-number ratio. It's possible that a compound's empirical formula and molecular formula are different.

Given Information:

P = 10.15 mg

Cl = 34.85 mg

Convert mg to moles

                                 31 mg of P ----------------- 1 mmol

                                 10.15 mg  ------------------   x

                                 x = 0.327 mmol of P

                                  35.5 mg of Cl ------------  1 mmol

                                   34.85 mg -----------------  x

                                 x = 0.982 mmol of Cl

Divide by the lowest number of mmoles:

For P = [tex]\frac{0.327}{0.327}[/tex] = 1

For Cl = [tex]\frac{0.982}{0.327}[/tex] = 3

So the empirical formula for the compound will be [tex]PCl_{3}[/tex]

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Since magnesium ions have a charge that is two times greater than that of lithium and sodium ions, MgF2 has a higher lattice energy than LiF and NaCl. As ion charge rises, lattice energy rises as well.

An inorganic substance with the chemical formula MgF2 is magnesium fluoride. The substance is transparent over a wide spectrum of wavelengths and is a white crystalline salt with industrial uses in optics and space telescopes. Ionic compounds, which are formed of a cation and an anion, include magnesium fluoride as an example.

The hydrogen Lyman-alpha line (121 nm) and beyond are well-transmitted by magnesium fluoride in the VUV range. Magnesium fluoride is ideal for Excimer laser applications and is mostly employed in UV optics.

Fluorine is an electronegative element, whereas magnesium is an electropositive element. Magnesium fluoride is the result of the reaction between these two, which produces an ionic product.

Lattice energy: MgF2(s) → Mg2+(g) + 2 F– (g)

Use Hess’s law: ∆Hº

Mg(s) → Mg(g) 148 kJ

F2(g) → 2F(g) 159 kJ

Mg(g) → Mg+ (g) + e– 738 kJ

Mg+(g) → Mg2+(g) + e – 1450 kJ

2F(g) + 2e–→ 2F– (g) 2(–328) = – 656 kJ

MgF2(s) → Mg(s) + F2 (g) 1123 kJ (Reaction is reversed and the sign of ∆Hº changed.)

MgF2(s) → Mg2+(g) + 2F– (g) 2962 kJ

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PCL3 has four electron domains, three bonding domains, and one nonbonding domains and the molecular geometry is trigonal pyramidal.

Phosphorus trichloride is inorganic compound with the chemical formula of PCl₃. It is a colorless liquid when pure and is an important industrial chemical, used for the manufacture of other organophosphorus compounds. It is toxic and reacts with water to give hydrogen chloride.

In PCl3, there are 3 electron pairs that is 3 bond pairs and one lone pair of electrons. Molecular geometry of PCL3 is trigonal pyramidal, but the presence of a pair of electrons on phosphorus atom has an asymmetric charge distribution and makes its electron pair geometry tetrahedral.

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The major organic product of the mentioned reaction is tetralin with an alkoxy functional group and the diagram is attached below:

In organic chemistry, a functional group is a specific group of atoms or bonds within a compound that are responsible for the characteristic chemical reaction of that compound. The same functional group will behave in similar ways and undergo similar reactions regardless of the compound it is part of.

Alkoxy groups are functional groups based on oxygen, carbon, and hydrogen. A functional group is a chemical substituent attached to an organic backbone. It is a characteristic substituent of various molecules attached to an organic carbon skeleton.

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The complete question is as follows:

H₃O⁺ = 3.09 * 10⁻². the number of aqueous ions in a concentration of hcl with a pH reading of 7.910.

A amount pf solute present in a certain solution is the product's concentration. To express concentrations, we utilize the molarity, which is the amount of solvent per 100 milliliters of solution. Qualitative units of concentration include molality, volume proportion, parts per thousand, parts per million, and parts per billion.

When you are concentrated, you can just use your assets more wisely and deal with problems more successfully. It happens less frequently when you are preoccupied to forget important details. Focusing on the task at hand makes it easier for you all to memorize knowledge.

The connection among pH and H₃O⁺ is Ph = -log H₃O⁺

Ph = -log H₃O⁺

H₃O⁺ = 10⁻Ph

H₃O⁺ = 10 ⁻⁷°⁹¹⁰

H₃O⁺ = 3.09 * 10⁻²

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Answer:

The answer should be 1-hordephysecine added to the following of symbols.

Explanation:

Barium nitrate(BaNO3)+sodium sulfate(Na2SO4)---> Barium sulfate(BaSO4)+ sodium sulphate(Na2SO4).Thus 1 mole of Barium nitrate will yield one mole of Barium sulfate ;

Total Volume= 1L

Concentrarion in Molarity=1.55(M)

Now we know Molarity=Moles of Solute/Volume of solution in L

Therefore,no of moles=1.55 moles

Now,No of moles= grams of barium sulfate taken/Molecular Mass

MM=233.40g/mol(given

Thus,grams of barium sulphate taken=No o moles x MM =1.55 x 233.40=361.77 g,which is the required grams of barium sulfate.

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f an electron drops down from excited state c (950 zj) to ground state a (150 zj), the wavelength of the photon that is emitted is 1.22 x 10^7.

Energy of the radiation emitted when the muon jumps from the second orbital to the ground sate E=RX² (2-2) (x-1);(R=2-2x168) E= R (1) 3R. R = 3x2+2x10'3 4 -18 1.65×10. Wavelength of the radiation emitted, λ= he = 6.6 x 1034, E x3x10 1.65 x1018 -7 = 1.2x10 m. An electron is in an excited state when it momentarily takes up an energy state larger than just its ground state. Whenever an electron absorbs a photon or throughput of light, or comes into contact with a near the area atom or particle, it gains additional energy and then becomes excited. The dipole moment is the lowest energy level that an atom can occupy. This is the atomic power state that's also considered the norm. The length between corresponding points (adjacent crests) in adjoining loops of the a signal signal propagated in room or along a wire is characterised as the wavelength. This length is generally defined in wireless systems in metres (m), centimetres (cm), or millimetres (mm) (mm).

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hope this helps

Part 1

Define matter, and an atom

Ans: An atom is the smallest unit of matter that retains all of the chemical properties of an element. matter is any substance that has mass and takes up space by having volume. Atoms are combine to form matter.

Define Protons, Neutrons, and Electrons

Ans: . Electrons are a type of subatomic particle with a negative charge. Protons are a type of subatomic particle with a positive charge. Protons are bound together in an atom's nucleus as a result of the strong nuclear force. Neutrons are a type of subatomic particle with no charge (they are neutral)

Identify the location of protons, neutrons, and electrons within an atom

Ans:Atoms are made of extremely tiny particles called protons, neutrons, and electrons. Protons and neutrons are in the center of the atom, making up the nucleus. Electrons surround the nucleus.

What is the mass and charge of a proton, neutron, and electron?

Ans: Protons, neutrons, and electrons: The nucleus contains protons and neutrons, each of which has a mass of one amu. Protons, on the otheAnsr hand, have a charge of +1, whereas neutrons are uncharged. Electrons have a charge of -1 and have a mass of around 0 amu. They orbit the nucleus and have a mass of approximately 0 amu

Define a cation and anion.

Ans:Cations are ions that are positively charged. Anions are ions that are negatively charged

Ans:Cations are ions that are positively charged. Anions are ions that are negatively chargedDraw the stable, Cation, and Anion versions of lithium and boron

How do you determine the mass and charge of an entire atom?

Ans: The mass of an atom is a weighted average that is largely determined by the number of its protons and neutrons, whereas the number of protons and electrons determines its charge. Each atom of an element contains the same number of protons, known as the atomic number (Z).

How do we use the periodic table? Identify periods and groups in a periodic table

Ans:The periodic table is arranged in order of atomic number. A period is a horizontal row of the periodic table. A group is a vertical row of the periodic table

What is the chemical symbol of an element? Atomic mass?

Ans: The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D).

Why is the atomic number of an element important? What information does the atomic number

provide us with?

Ans: The atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element. This means that the number of protons is the characteristic which makes each element unique compared to all other elements.

sorry can't fit part 2

I should get 100 points for this

The time required for a 100 g sample of nitrogen-16 to decompose into 12 g of nitrogen-16 in 21. 6 s is 7.2 seconds.

Initial weight  N₀=100  g

Final weight  N=12.5  g

Time  t=21.6  sec

[tex]t_{1/2}[/tex]=?

Solution:

t=n∗[tex]t_{1/2}[/tex]

N/N₀=(1/2)ⁿ

12.5/100=(1/2)ⁿ

1/8=(1/2)ⁿ

(1/2)³=(1/2)ⁿ

Thus,

n=3

[tex]t_{1/2}[/tex]=t/n

[tex]t_{1/2}[/tex]=21.63/3

[tex]t_{1/2}[/tex]=7.2  sec

Consequently, the sample's above half-time is 7.2 sec.

A sample is described as a smaller set of data that a researcher selects from a larger population using a predetermined selection procedure. Observations, sample points, or sampling units are terms used to describe these components. An effective way to carry out research is to create a sample. The majority of the time, it is either difficult, expensive, or time-consuming to conduct a population-wide study. Insights are thus gained by studying the sample that the researcher can then extrapolate to the overall population.

For instance, suppose a cell phone maker wanted to survey US university students about their favorite features. An extensive research study is necessary if the researcher wants to find out the features that students utilize, the features they would want to see, and the price they are prepared to pay.

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In this question we are asked to round off the figure 0.02056 to three significant figures.

We are given with four options to chose best out of four

a) 0.0205

b) 0.0206

c) 0.021

d) 0.020

In this question, option (b) is correct i.e. 0.0206.

There are four significant rules, we should keep in mind during round off:

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the molarity of the H₂SO₄ solution if it takes 40.0 ml of H₂SO₄ to neutralize 0.364 g of Na₂C0₃ is 0.0858

Calculation of the molarity of  H₂SO₄:

As per equation: H₂SO₄  + Na₂C0₃  ------> Na₂C0₄  +  H₂O  + CO₂

   1 mole of  H₂SO₄ reacts with  1 mole of Na₂C0₃

   1000   ml  1M   H₂SO₄        =    106 g. of Na₂C0₃  

     40  ml  1M  H₂SO₄       =    364 g. of Na₂C0₃

     1000   ml  1M   H₂SO₄   =     9.1 g.of Na₂C0₃

    __________________________________________

  1000 x 0.364

  ----------------------    =  9.1 g. of Na₂C0₃

        40

   Now  106 g. of Na₂C0₃   =    1 mole of  H₂SO₄

  Hence , 9.1 g. of Na₂C0₃  =0.0858 moles of H₂SO₄

  --------------------------------------------------------------------

          9.1 x1

        -------------                = 0.0858 moles of H₂SO₄

            106

0.0858 moles of H₂SO₄

The amount of moles of a solute in a liter of solution is known as its molarity. A capital M is used to represent molarity.

A solution in chemistry is a combination of two or more compounds in which neither ingredient undergoes a chemical transformation. For instance, salt water is a solution that contains both salt and water (the solvent) (the solute). The concentration of a material in a solution is its amount of dissolution. In other words, it refers to the number of ingredients that have been added to your drink. In molarity, concentration is often expressed.

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Water and toluene are not miscible. Among the following (d) C₆H₅CH₃ is most likely the formula of toluene.

Toluene is a substituted aromatic hydrocarbon that is also known by the term toluol. It is an odourless liquid that is insoluble in water and has the characteristic odour of paint thinners. It is a mono-substituted benzene derivative that consists of a methyl group (CH3) that is connected to a phenyl group. Benzene is the parent compound. As a consequence of this, the name given to it by the IUPAC is methylbenzene. Toluene is utilised mostly in the industrial sector as both a feedstock and a solvent.

So the right option is option D, while others are soluble due to their polarity and functional group pressure.

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Answer:

Below

Explanation:

The Celcius scale is defined by water's boiling and freezing points

  boils at 100° C   and freezes at 0 ° C

     at MINUS 74 ° C  it would be frozen...SOLID

At -74 degrees Celsius, water would be in a solid state, specifically as ice.

Water undergoes a phase transition from liquid to solid at its freezing point, which occurs at 0 degrees Celsius (32 degrees Fahrenheit) under normal atmospheric pressure. As the temperature drops below the freezing point, the water molecules lose energy, and their movement slows down. Eventually, the attractive forces between the water molecules become stronger than the kinetic energy they possess, leading to the formation of a regular crystalline structure.

At -74 degrees Celsius, the temperature is significantly below the freezing point of water, so the water molecules have lost a considerable amount of energy. As a result, the water molecules slow down even further, and the intermolecular forces hold them tightly in place, forming a solid state known as ice.

Ice is characterized by a specific arrangement of water molecules in a crystal lattice structure. It is less dense than liquid water, which is why ice floats on top of water bodies. At -74 degrees Celsius, water exists as a solid ice, and its molecular movement is limited to small vibrations within the rigid structure of the ice lattice.

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