how do you feel about the changes of male and female​

Stereoisomers and constitutional isomers typically have the same connectivity but different spatial configurations. Although structural isomers share the same molecular formula, their atoms are bound differently. The atomic configurations and chemical formulae of the stereoisomers are identical.

Two major groups of isomers are constitutional isomers and stereoisomers (molecules of the same chemical formula). Stereoisomers and constitutional isomers typically have the same connectivity but different spatial configurations.

Although structural isomers share the same molecular formula, their atoms are bound differently. The atomic configurations and chemical formulae of the stereoisomers are identical. Only the groups' spatial orientation within the molecule distinguishes them from one another.

Stereoisomers known as isomeric isomers are those that cannot be changed into one another by rotating a molecule around a single bond. Geometric isomers and optical isomers are the two different categories of these configurational isomers.

Cis-trans isomers are another name for geometric isomers. Alkanes tend to exhibit this form of isomerism more frequently than other alkanes.

When two identical groups (connected to the vinyl carbon atoms) are present, geometric isomerism refers to whether they are on the same side of the double bond or the other. It is referred to as the cis-isomer if the two identical groups are on the same side and as the trans-isomer if they are on opposite sides.

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The formula mass of each compound. keep at least one decimal place in atomic masses from the periodic table are H₂O₂ = 34.014 g /mol and H₂SO₄ = 98.07 g/mol.

The formula mass is defined as the sum of atomic  masses of each element in the formula. let us take some example:

1)  H₂O₂

mass of hydrogen = 1

mass of oxygen = 15.99

H₂O₂ = ( 2× 1 + 2 × 15.99) = 34.014 g /mol

2) H₂SO₄

mass of hydrogen = 1

mass of sulfur = 32.06 g/mol

H₂SO₄ = ( 2× 1 + 32.06 + 2 + 4 × 15.99) = 98.07 g/mol
Thus, The formula mass of each compound. keep at least one decimal place in atomic masses from the periodic table are H₂O₂ = 34.014 g /mol and H₂SO₄ = 98.07 g/mol.

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The steps to fry donuts in a deep fryer are preheat the oil in your deep fryer before adding the donuts and fry the donuts until they’re Golden Brown on both sides .

In general, deep frying is defined as a process of cooking oil or butter in large quantities at the extremely high temperatures. This causes the oil or butter to turn into a hot, sticky mess that is actually perfect for frying donuts.

Donuts are considered as a popular breakfast food in many parts of the world. They are typically fried and served as the sweet snack or dessert. In some cases, they are also be used as a type of breading for other foods. The best way to fry doughnuts is actually dependent on what type of oil you are using and how hot your oven is.

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If two sounds have different waveforms, they can sound different despite having the same amplitudes.

A waveform is only a graphic that aids in our comprehension of sound waves. They track the movement of one air molecule over time. We can change a waveform's amplitude to produce it louder or quieter, and we are able change a waveform's frequency to change the pitch.

A unique kind of oscilloscope utilized in television applications is called a waveform monitor. Usually, it is used to gauge and show the voltage or level of a video stream in relation to time.

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The compound with covalent bonding is : LiI

1) LiBr : lithium bromide is an ionic compound. Lithium is the metal element which have tendency to  donate the electron. the bromine is the non metal and have tendency to accept the electron. the compounds form ionic compound

2) LiI : lithium iodide is a covalent compound. the electronegatively difference is very low so they form covalent compound.

3) Na₂S : odium slfide is ionic compound. the electronegativity difference is very high so they form ionic bond

4) H₂Se:  this is also an ionic compound.

Thus, The compound with covalent compound is : LiI

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This element is called Neon and it is part of the group known as Noble gases or group 8 and it is in period 2

Using 4.35 l of H2 and 2.55 l of Cl2 we can produce 5 L of HCl.

Given chemical equation

H2 + Cl2 → HCl

Balancing the chemical equation

H2 + Cl2→ 2 HCl

we have 4.35 l of H2 and 2.55 l of Cl2.

This is a limiting reaction as the reactant aren't in the correct ratio. Thus when one of the reactant gets exhausted the reaction will cease.

Hydrogen and chlorine are in 1:1 and thus the one which is present less will act as limiting reactant which is chlorine (2.55 l)

For every 1 L of chlorine 2 L of HCl is produced

Thus for 2.55 L of Cl, 5 L of HCl is produced.

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High ionization energy is the property of barium that is most directly connected to its chemical reactivity.

There are two valence (outermost) electrons in each of their atoms. Because it is in period 5 or row 5, barium has valence electrons in its fifth shell, although they can be lost very quickly.

This explains why oxygen and other electronegative substances, like barium, make it so reactive. In a nutshell, when atom size increases, the ionization energy drops.

Barium is larger and has higher energy levels than strontium because it is in a different period—the sixth—than strontium, which is in a different period. As a result, barium will have a lower ionization energy.

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P3 is the symbol for the ion, which consists of 15 protons and 18 electrons.

An atom or a collection of atoms with a charge is an ion. Depending on the process through which the ion is created, the charge might be either positive (+) or negative (-).

1. If the element loses an electron, the ion will be positive (s)

2. If the element involved gained an electron, the ion will be negative (s).

We'll start by locating the element's symbol in order to answer the above-mentioned question. This is attainable as follows:

We learned that the ion had 15 protons from the question that was previously presented. The element's atomic number is this, or 15 protons.

Comparing the atomic sizes now The element whose ion we are searching for is phosphorus, which has the periodic table's corresponding number .

The ion's charge will then be determined. This is attainable as follows:

Electron = 18 Proton = 15

Price =?

Proton - electron equals charge.

Cost: 15 to 18

-3 charge

We will finally determine the ion's symbol. Below is an example to help:

Charge = -3 Proton = 15 Electron = 18

Phosphorus is an element.

P is the element's symbol.

Ion symbol is hence P3.

Consequently, the ion with 15 protons and 18 electrons has the symbol P3.

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The launch of the Tet Offensive is the event that occurred in 1968 which prompted anti war protests to increase throughout the United states.

This is referred to as a series of coordinated attack by the North Vietnamese on more than 100 cities and outposts in South Vietnam.

This was carried out so as to send signals to the United States so that they can know that it could not militarily win the war. This then led to the increase in the American public's dissatisfaction with the war.

The launch of the Tet Offensive sent waves of shock and discontent which resulted in a most intense period of antiwar protests in the country and there were withdrawal of troops from Vietnam later on which therefore makes it the correct choice.

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The amount of NaOH required is twice as compared to H₂SO₄ according to the balanced reaction.

A diprotic acid, an acid that can donate two hydrogen ions (H+) or protons per molecule in an aqueous solution. They are also known as dibasic acid. A diprotic acid is a kind of polyprotic acid, which is an acid able to donate more than one proton per molecule. For example: sulfuric acid (H₂SO₄), and carbonic acid (H₂CO₃). The number of equivalence points in a titration curve for a polyprotic acid depends on the number of acidic protons in the acid. Therefore, we titrated diprotic acid with two acidic protons, so there are two equivalence points in the titration curve.

According to the balanced chemical equation:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

The mole ratio of  H₂SO₄ and NaOH is 1:2, this indicates that for every mole of  H₂SO₄ two moles of NaOH are required.

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Calcium Hydroxide has three atoms 5 atoms in each molecule.

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The IUPAC name for this molecule will be 4-methyl hexaldehyde.

An worldwide federation of National Adhering Organizations seeking to improve the chemical sciences, particularly by creating nomenclature and vocabulary, is the International Union of Pure and Applied Chemistry. The International Science Council counts it among its members.

Whether in a continuous chain or a ring, the longest chain of carbons joined by a single bond serves as the basis for IUPAC nomenclature. According to a particular set of priorities, all deviations, whether multiple bonds or atoms other than carbon and hydrogen, are denoted by prefixes or suffixes.

For this molecule we know that if aldehyde group is present then the numbering will start from there and one methyl group is present on 4th carbon thus the IUPAC name will be 4-methyl hexaldehyde.

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Molecular equation in total ionic form:

[tex]BaCO_{3} (S) + 2H ^{+} + 2NO_{3}^{-} (aq) --------- > Ba^{2+}(aq) +2NO_{ 3}^{-}(aq) + CO_{2}(g) + H_{2}O(l)[/tex]Spectator ion:

[tex]NO_{3}^{-}[/tex]

Net ionic equation:[tex]BaCO_{3}(s) + 2H^{+}(aq)------ > Ba^{2+} + CO_{3}(g) + H_{2}O(l)[/tex]

To write ionic equations follow the steps below.

1. Write the molecular equation and balance it.

2. Determine the state of each substance (gas, liquid, solid, aqueous). Use the solubility rules to determine which of the ionic compounds are soluble in water. Soluble ions are identified with an (aq.), insoluble ones with an (s). Most elements and covalent compounds (covalent compounds are formed when two or more nonmetallic elements are bonded to each other) are insoluble in water and should be shown with an (s), (l) or (g).

3. Write the ionic equation by breaking all the soluble ionic compounds (those marked with an (aq.) into their respective ions. Each ion should be shown with its charge and an (aq.) to show that it is present in solution. Use coefficients to show the number of each ion present. Rewrite the elements and covalent compounds as they appeared in the preceding step.

4. Write the net ionic equation by removing the spectator ions. Spectator ions are those ions that appear exactly the same on each side of the ionic equation.

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The slope of the graphical method can be used to obtain the activation energy.

As we know that rate constant (K) and the activation energy (Ea) relate to each other as;

   lnK = ln A - Ea / RT

By using the values from the slope between 1/T and K, the activation energy of any reaction can be calculated

Hence

   Slope = -Ea / R

Ea is the activation energy, the minus sign indicates that energy will b absorbed by the system

R is the rate constant, and the value of R is 8.314 J/mol.K

So it is clear that we can get the activation energy by using the slope of the graphical data.

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Answer:

"Chromatography"

Explanation:

(Chromatography is a procedure used in identifying the components) of a mixture on the basis of their size and solubility.

They are formed when two elements or compounds are combined physically and not chemically. chromatography.

Mixtures are divided into two categories: Homogeneous and heterogeneous.

Homogeneous mixtures- They have the same composition throughout their mass and there are no visible boundaries between the components of the mixture. Example- Sugar solution, salt solution, alloys, alcohol dissolved in water.

Heterogeneous mixture- They do not have the same composition throughout there are visible boundaries between the components of the mixture. Example- Milk, sand, and iron fillings, solution of, solution of.

To demonstrate the the given liquid is a mixture, the scientist can perform Chromatography.

Chromatography is based on the different rates of adsorption of components of a mixture on a suitable adsorbent.

When a drop of a mixture of substances is put on a chromatogram paper and the paper is dipped in a solvent, the substance that is more soluble in the solvent rises faster compared to others. And due to this difference in adsorption of different substances, they are separated by the method of chromatography.

If two spots are seen on a chromatogram that means the liquid is a mixture and if only one spot is visible, that suggests that liquid is a pure liquid.

Thus, they are formed when two elements or compounds are combined physically and not chemically. chromatography.

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The molecular formula is C6H12O6.

Solution:

1. Molar composition

Base: 100 g

C: 40.00 g / 12.0 g /mol = 3.333 mol

H: 6.72 g / 1 g/mol = 6.72 mol

O: 53.28 g / 16g/mol = 3.33 mol

2. Divide by the smaller number of moles

C: 3.333 / 3.33 = 1.00

H: 6.72 / 3.33 = 2.02 ≈ 2

O: 3.33/3.33 = 1.00

3. Empirical formula

CH2O

molar mass of the empirical formula = 12 g/mol + 2*1g/mol + 16 g/mol = 30 g/,ol

4. Number of times that the mass of the empirical formula is contained in the molar mass = 180 g/mol / 30 g/mol = 6

5. Molecular formula = 6 times the empirical formula

= C6H12O6

Compare structural formulas to chemical formulas that give the total number of atoms of each element in each molecule of a substance. A formula that indicates the actual number of atoms of an element present in a molecule of a substance. Example The molecular formula for ammonia gas is NH3.

This indicates that one molecule of ammonia gas contains one nitrogen atom and three hydrogen atoms. A molecular formula is a representation of the number of atoms in each element in the molecule of a compound. The definition of the molecular formula is the formula that gives the actual number of each atom in the molecule.

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Any hydrocarbon may be completely burned to produce carbon dioxide and water.

Octane, or C8H18, is a component of the fuel that powers your automobile. Octane burns to produce CO2 and water when it is burnt. The availability of oxygen is the primary component in the process. In an oxygen-free environment, combustion is impossible.

2 water molecules to 2 carbon dioxide molecules make up the molar ratio. For every mole of water in the molecule H2O, there are two moles of hydrogen atoms.

Carbon monoxide (CO) and water are byproducts of the incomplete combustion of octane, C8H18.

Carbon dioxide and water are the byproducts of a complete combustion process of any fuel.

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Taking into account the definition of sensible heat, the final temperature if 150.0g of chloroform absorbs 1.0 kilojoules of heat is 31.94 C.

When heat added or removed from a substance causes a temperature change in it without affecting its physical state (phase change), it is called sensible heat.

The expression that allows to calculate heat exchanges is:

Q = c× m× ΔT

where:

In this case, you know:

Replacing in the definition of sensible heat:

1000 J = 0.96 J/gC× 150 g× (Tfinal - 25 C)

Solving:

1000 J = 144 J/C× (Tfinal - 25 C)

1000 J÷ 144 J/C= Tfinal - 25 C

6.94 C= Tfinal - 25 C

6.94 C + 25 C= Tfinal

31.94 C= Tfinal

Finally, the final temperature is 31.94 C.

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The distance at which the lowest potential energy is reached and the distance at which positive charges are least repellent are used to calculate bond length.

The distance between the centers of two covalently bonded atoms is referred to as the bond length. The quantity of bound electrons determines how long the bond will be (the bond order).

The attraction between the two atoms is stronger and the bond length is shorter the higher the bond order. The covalent radii of the two atoms are typically added together to determine the length of the connection between them.

Picometers are used to measure bond length. Consequently, bond length grows in the following order: Triple bonds are made up of two bonds and one bond.

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The strength of the associated bonds and the mass of the atoms define the precise frequency at which a certain vibration occurs.

A stretching vibration occurs when the interatomic distance continuously changes along the axis of the link between two atoms. A bending vibration is an alteration in the angle between two bonds. There are four types of bending vibrations: wagging, twisting, rocking, and scissoring. Because a significant change in the dipole occurs in that mode, bond stretching is typically accompanied by highly strong bonds.

Individual interatomic bonds may absorb at more than one IR frequency because they can vibrate in a variety of directions (stretching or bending). As a result, various molecules with different functional groups will often absorb within the same, predetermined frequency ranges.

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The surface rendering of 1OPF using the hydrophobicity color scale is the the interior is the hydrophilic and the exterior is the hydrophobic.

The hydrophobicity is the physical property of a molecule. it will depend on non polar groups. The hydrophobicity are of two types one is hydrophobic and the other is hydrophilic . the hydrophilic means water loving which at maximizing contact with the  water. the hydrophobic is water repelling . which will  repel the water.

Thus, The surface rendering of 10pf using the hydrophobicity color scale is the the interior is the hydrophilic and the exterior is the hydrophobic.

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0.6078 moles of sodium chloride are in 74 gm of the mixture.

Mixture of sand and Nacl = 74gm

48% by mass is Nacl

48% = mass of Nacl / Total mass of mixture

48% = mass of Nacl / 74gm

Mass of Nacl = 48% of 74gm

Mass of Nacl = 48/100*74gm

Mass of Nacl = 35.52gm

Actual mass of Nacl = 58.44 gm

SO, the molar mass of Nacl = 35.52 / 58.44

                                               = 0.6078 moles

The molar mass of the chemical compound is defined as the mass of the sample of that compound divided by the amount of substance which is the number of moles in that sample.

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Suspension will settle out if allowed to sit on a table

In suspension the solute does not dissolve in liquid and when placed on table for sometime and it will settle down at the bottom of the beaker and we can separate particles of solute easily from solvent through filtration and the colloid particles of solute does not dissolve in liquid neither it is settle down and it float through the solvent and in solution the particles of solute dissolve in to the solvent and we cannot identify them as separate we cannot separate them by filtration and in compound the two element combine to form a new thing and resultant compound have two new or different properties other than its ingredients so the correct answer is suspension

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Yes, a precipitate is formed when solution of calcium chloride and a solution of mercury(I)nitrate are mixed together.

          Hg2(NO3)2 + CaCl2 = Hg2Cl2 + Ca (NO3)2

Solutions for volumetric titration (acids, bases, or salts)

Buffers available as concentrates or ready to use.

Mercuric nitrate appears as a white crystalline solid. Toxic by inhalation, ingestion or skin contact. Prolonged exposure to fire or heat may result in an explosion. Produces toxic oxides of nitrogen when heated to decomposition. Used to make other chemicals and in medicine.

Mercuric nitrate are white or slightly yellow crystal powder. It is deliquescent crystalline. Have white granules or crystalline powder, colorless, rhombic crystals. It has sharp odor and has 79-degree Celsius melting point.

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Moles of Cl present in 24.0 ml of pure ccl4 is 0.992 mol.

Atomic mass M is the mass of a chemical compound divided by the molecular weight of the material. The formula for this is MB = m/nB, where m is the total mass of a sample of a pure substance and nB is the molecular weight of substance B.

Density = (mass of the substance/volume of the substance)

Or, mass = (volume × density )

Given,

Volume (CCl₄) = 24 ml = 24 cm³

Density = 1.59g/cm³

Thus, mass of CCl₄ = (1.59g/cm³×24 cm³)=38.16g

Now, moles of CCl₄ present = (Given mass of CCl₄/molar mass of CCl₄)

Given,

Mass of CCl₄ = 38.16 g

Molar mass of CCl₄ = 153.82 g/mol

Thus, moles of CCl₄ = (38.16/153.82)

Moles of CCl₄ = 0.248 mol

Using formula of CCl₄,

That 1 mol CCl₄ contains 4 mol Cl.

Thus, 0.248 mol CCl₄ contains:

(4 mol Cl/ 1 mol CCl₄) × 0.248 CCl₄

= 0.992 mol Cl

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Answer:

the answer is D

Explanation: i took the test and it was correct

For every metric ton of carbon dioxide emitted as a result of changes in land use, approximately 1.5 metric tons are emitted from the industry.

How do changes in land use cause CO2 emissions?

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PbCl₂ is the byproduct of the reaction between a potassium chloride solution and a lead (II) nitrate solution.(option -a is correct)

When atoms' chemical bonds are formed or ruptured, chemical reactions take place. The materials that initiate a chemical reaction are known as reactants, and the materials created as a result of the reaction are known as products.

A chemical reaction is a process in which reactants interact chemically and transform into products. As an illustration, during respiration, oxygen is inhaled, which reacts with glucose to produce carbon dioxide, water, and energy.

The bonds between molecules in a reactant are broken during a chemical reaction, and when molecules in the product go through a similar process, new bonds are made, resulting in the creation of a new substance.

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Work done by atm =-1.13L for a rope can be held by hand or with external pressure, which is one method of holding the free end. The way that wire rope clips and swaged sleeves (which create an eye) function.

They exert enough external pressure to provide enough friction to stop the clamped end from sliding down the rope's length. temperature one litre to two litres, one mole of a monoatomic ideal gas expands adiabatically at initial temperature T against a constant external pressure of 1 atm. Determine the final temperature. [R=0.0821 lt. atm. K mole 1]

accomplished work

-PAV =  2-0 0.750 (2.50-1.00 2 - 0.750) (1.50) (1.50) - 1.125 L\s

Work done by atm =-1.13

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