What molecular shape is this lewis structure?
A. Trigonal pyramidal
B. Trigonal planar
C. Bent
D. Tetrahedral
E. Linear

The correct classification of the following compounds are as follows:

Organic compound are any compound containing carbon atoms covalently bound to other atoms most commonly hydrogen, oxygen, or nitrogen.

Inorganic compounds are those not containing carbon atoms or containing carbon atoms ionically bound to other atoms.

However, not all carbon-containing compounds are organic. For example, carbon dioxide is an inorganic compound; although it has a carbon atom it has no C-C or C-H bonds.

Therefore, the classification of organic and inorganic compounds is as illustrated above.

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When there is a separation of charge, dipole moments happen. Dipole moments, which result from variations in electronegativity, can happen between atoms in a covalent link or between two ions in an ionic bond.

The dipole moment increases with the difference in electronegativity. The size of the dipole moment is also affected by the distance between the charge separations. The polarity of the molecule is determined by the dipole moment. A dipole moment is produced when electrons are distributed unevenly among atoms in a molecule. This happens when one atom possesses a lone pair of electrons and the difference in electronegativity vector points in the same direction, or when one atom is more electronegative than another, causing that atom to pull more strongly on the shared pair of electrons. The water molecule, which consists of one oxygen and two hydrogen atoms, is one of the most prevalent instances. Each hydrogen has a partial positive charge, while oxygen has a partial negative charge due to variances in electronegativity and lone electrons.

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A substrate in biology can be either a chemical that an enzyme can operate on or the surface that an organism (such as a plant, fungus, or animal) lives on. A substrate in geology is the surface of a rock or sediment where chemical and biological processes take place.

Geology describes it as the layer of rock or other elements that lies beneath the soil. For instance, a page is a substrate for ink to stick to, rock is a substrate for fungi, and NaCl is a substrate for a chemical reaction. The basic material on which processing is carried out is referred to as the substrate in the fields of materials science and engineering. This surface might be employed to create new films or material layers, like deposited coatings. It might serve as the foundation for the bonding of paint, adhesives, or sticky tape.

The substrate in biochemistry is a molecule that an enzyme reacts with. Chemical processes involving the substrate are catalyzed by enzymes (s). One or more products are created from the substrate, and they are then released from the active site. After that, another substrate molecule can be taken up by the active site.

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The Precipitate formed is of CdS and the ions remaining are Na+ and NO3-.

The complete balanced chemical reaction is as follows:

Cd(NO3)2 + Na2S → CdS + 2NaNO3

Precipitation in an aqueous solution is the process of converting a dissolved component into an insoluble solid from a supersaturated solution. The precipitate is the solid that forms. In chemistry, a solid generated by a change in a solution, usually owing to a chemical reaction or a temperature shift that reduces the solubility of a solid.

A chemical may precipitate when its concentration exceeds its solubility. This can be caused by temperature fluctuations, solvent evaporation, or solvent mixing. A severely supersaturated solution precipitates more quickly.

A chemical reaction can result in the development of a precipitate. A white precipitate of barium sulphate is created when a barium chloride solution combines with sulphuric acid.

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Option C) "are digested by proteases into both opiate and non-opiate peptides" is the correct response.

Like all other propeptides, the opioid propeptides is a protein precursor that must be cut into a smaller form to become active. Proteases convert the opioid propeptides into opiate and non-opiate peptides, the latter of which may or may not be active. Enkephalins, endorphins, and dynorphins, which are opiate peptides, work by blocking secondary systems, such as those that affect how pain is perceived.

The opioid receptors are essential signalling molecules in the brain that the leucine-enkephalin binds to. They include four peptide bonds in total. These are naturally occurring ligands that function as neurotransmitters and have morphine-like properties.

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After solving the equation benzene is 2.698 kg is the correct answer.

Description of the answer

1 day = 24 hrs = 24×60 minute = 1440 minutes

concentration of benzene in groundwater = 5 mg/l

100 gallon = 378.541 L

100 gallon/minute = 378.541 L/minute

100 gallon (378.541 l) benzene contaminated groundwater is being pumped per minute, therefore the volume of groundwater being pumped in one day (i.e. 1440 minutes) = (378.541 × 1440) l = 545099.04L

Since 1 l groundwater is contaminated with 5 mg benzene, therefore 545099.04 l groundwater is contaminated with = (545099.04 × 5) mg = 2725495.2 mg = 2725.495 g = 2.725 kg

Thus, 545099.04 l groundwater is pumped per day, which contains a total of 2.725 kg benzene as contamination.

Since 99% benzene from groundwater has to be removed, therefore benzene waste (kg) needed to be treated per day = (2.275 × 99 / 100) kg = 2.698 kg.

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Starch is a covalent compound because no ions is present in it.

A covalent bond is made from the mutual sharing of one or more pairs of electrons between two atoms. These electrons in a covalent bond are simultaneously attracted by the two atomic nuclei. A covalent bond is formed when the difference between the electronegativities of two atoms is too small for an electron transfer to occur and to form ions.

Starch is composed of long chains of glucose molecules that are bonded together through covalent bonds called glycosidic bonds. As starch contains covalent bonds it it, so it is a covalent compound.

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So that is base. However, this base (CH 3COO) is actually a derivative of the acid (CH 3COOH), which is why CH 3COO is an acid's conjugate base. What distinguishes a conjugate base from an acid hbr?

H2CO3 is the conjugate acid. acid carbonate. What is CH3COO's conjugate acid? The conjugate acid for the acetate ion is acetic acid. What is the CH3COO- conjugate acid? What does the term conjugate base mean? An acid's conjugate base is what is left over after the acid has contributed its proton. Example: HX is the acid, and X- is the conjugate base. An acid's conjugate base is what is left over after the acid has contributed its proton.  Acid is HX, while base is conjugate.

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Answer:

Study 'atom'

Explanation:

atoms are in the building blocks for molecules. the atom has protons and neutrons in its nucleus and electrons revolving around it. An atom can survive in its surrounding by either sharing electrons or by transferring electrons. Protons are positively charged and electrons are negatively charged. They are also called subatomic particles. When atoms lose electrons they get positively charged, and when they gain electrons they get negatively charged. When a metal is reacting with a non-metal, the metal is positively charged and transports an electron to the non-metal. The metal becomes positively charged and the nonmetal becomes negatively charged. the metal becomes the cation and the nonmetal becomes the anion. Thus, reactivity can cause gain or loss of charges.

To solve this type of question we must know the concept of rate law. Therefore, 8.242g will be left after 32 days. The kinetic for the decay of Plutonium is of first order kinetics.

There are two kinds of rate law in chemical kinetics one is differential rate law and other is integrated rate law.

The rate law for first order kinetics is

K=(2.303/T)×log(a/a-x)

half life=0.693/K

Where

k - rate constant

t - time passed by the sample

a - initial amount of the reactant

a-x - amount left after the decay process

K=0.693/half life

K=0.693/ 8

 =0.086

0.086=(2.303/ 32)×log( 136/a-x)

0.086=0.07×log( 136/a-x)

1.22=log( 136/a-x)

136/a-x=16.5

a-x=8.242g

Therefore, 8.242g will be left after 32 days.

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The classification of each protein is:

Proteins are essential macromolecules for human health, playing a vital role in the functioning of the human body. From hormones and enzymes to structural proteins and antibodies, proteins are the building blocks of life and are involved in a wide range of biological processes. In this essay, the importance of proteins in human health will be discussed, focusing on their four main functions:

Hormones are proteins that regulate various physiological processes in the body. Insulin, for example, is a hormone that is essential for glucose utilization in the human body. Without insulin, glucose cannot be metabolized and utilized properly, leading to serious health issues such as diabetes.

Enzymes are proteins that catalyze biochemical reactions in the body. Lipases, for example, are enzymes that hydrolyze lipids, which are essential for the digestion of food. Without lipases, the body would not be able to properly digest and absorb the essential nutrients from food.

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The enthalpy changes for each of the following reactions are:

The difference between total reactant and total product molar enthalpies estimated for substances in their standard states is the standard enthalpy of reaction for a chemical process. The quantity of heat evolved or absorbed in a process under constant pressure is referred to as enthalpy change. It is assigned the symbol ΔH, interpreted as "delta H".

Enthalpy is the product of internal energy and pressure multiplied by volume. We can't measure a system's enthalpy, but we can look at variations in enthalpy. The sum of internal energy (U) and the product of pressure (P) and volume (V) equals enthalpy (H) (V). The system's heat added or lost is quantified as a change in enthalpy (H), not the actual amount of heat.

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Answer:

400 meters

Explanation:

Distance is the amount traveled. It doesn't matter if the runners start and end in the same place for distance, they still travel 400 meters.

Pyruvate undergoes fermentation, which transforms it into lactic acid inside the absence of oxygen.

The breakdown of the drug occurs throughout this process. similar to how pyruvate is converted into lactic acid.

An organic acid contains lactic acid. Its chemical formula is CH 3CH(OH)COOH.

It serves as a synthesis precursor inside a number of biochemical as well as molecular synthesis industries.

The final result of the glycolysis pathway, pyruvate, is transformed into lactic acid inside the lack of oxygen.

Glycolysis

The process through which glucose gets broken down to provide energy is known as glycolysis.

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The freezing point of the solution is -3.53°C.

The Chemical equation of the HBr is -

              HBr → H⁺ + Br ⁻

Initial -     1         0      0

Final -      1-α     α       α

The total moles = 1 - α + α + α

                          = 1 + α

half factor = i = Total mol / Initial mol

                      = 1 + α / 1

                      = 1 + α

Now, Evolution in freezing point

                         ΔT f = i Kf m

                          kf = 1.86                                                (given)

   m(molality = mass of solute / solvent (Kg))

                        Δ T f  = (1 + α) × 1.86 × (mass/molar mass ) / solvent

   [ α = 90/100 = 0.9 because 90% ionised]

  putting the values in above equation -

                           = (1 + 0.9) × 1.86 × (8.1 × 1000) / 81 × 100(gm)

                              ΔT = 3.53°C

    Then freezing point T f =  T° f - ΔT

                            = 0 - 3.53°C

                           T f = -3.53°C

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Complete Question -

What is the freezing point of a solution containing 8.1 g HBr in 100gm. water assuming the acid to be 90% ionised:

[Kf for water =1.86Kmolarity^−1 ]

K2SO4 has the most ions out of the options, which means its freezing point will degrade the most.

Which aqueous solution with a concentration of "0.1 M" will have the lowest freezing point

UThe answer is "K 2SO 4" ionises to produce three ions, increasing the effective molality of the solution by three times. Its freezing point is therefore the lowest.

Since 1M glucose solution does not go through dissociation to produce more particles, it has a lower  

which results in a higher freezing point

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The freezing point of an aqueous solution containing 17g of c2h5oh in 1000g of water −0.69 degree celcius

What is freezing point?

When the temperature of a liquid falls below its freezing point, it transforms into a solid. According to the internationally accepted definition, freezing is the solidification phase change of a liquid or the liquid content of a substance caused by cooling.

Most substances have the same melting and freezing points; however, certain substances have different solid-liquid transition temperatures. Agar, for example, exhibits hysteresis in its melting and freezing points. It melts at 85 °C (185 °F) and solidifies at 32 °C to 40 °C (89.6 °F to 104 °F).

Hence, the freezing point of an aqueous solution containing 17g of c2h5oh in 1000g of water −0.69 degree celsius

△T f = K f × m B ×w A. w B ×1000

​ =1.86× 46×100017×1000

​ =0.69

∴ Freezing point of solution =0−0.69=−0.69 degree celsius

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After solving the equation the Molecular mass is 254 s is the answer.

What is Molecular mass?

Molecular mass is the sum of the atomic masses of all the atoms present in a molecule. It is an important property of molecules that is used in determining the chemical and physical properties of the molecule. Molecular mass is usually expressed in units of atomic mass units (amu) or daltons (Da). It is important to note that the molecular mass of a compound is not necessarily equal to the sum of the atomic masses of its constituent atoms, as the atoms in a molecule may be bound together by covalent bonds, which can alter their individual masses. Molecular mass can be calculated by adding the masses of the individual atoms present in the molecule. This value can be used to determine the identity of the molecule and its properties. Additionally, the molecular mass of a compound can be used to calculate the molar mass of the compound, which can be used to calculate the amount of a substance present in a given volume.

First we calculate,

Molecular mass of propane C3H8

= 3 x 12 + 1 x 8

= 44 gm/ml

Now, calculate amount of propane, c3h8, to effuse through the same orifice under the same conditions:-

[tex]t_{N2}[/tex]/[tex]t_{C3H8}[/tex] = [tex]\sqrt{28 gm/ml/ 44gm/ml}[/tex]

               = 0.49

[tex]t_{C3H8}[/tex] = 125 s/0.49

         = 254 s is the answer.

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In 1941, gold was created by neutron bombardment from mercury, but the isotopes were all radioactive.

What is neutron irradiation? When a high-energy neutron bombards a nucleus to start nuclear fission, more neutrons are released during the process. A neutron has no charge, thus when it is pointed at the nucleus, it is not repulsed.

When uranium-235 is irradiated with neutrons, the uranium atoms split, releasing heat and atoms with decreasing atomic numbers as well as more neutrons. Similar to typical fossil fuel power plants, this process, known as fission, may harness the heat produced to produce electricity.

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Answer: The place where the kinetics energy is the highest is where the ball struck the ground.

Answer: What is soil? In short, soil is a mixture of minerals, dead and living organisms (organic materials), air, and water.

Explanation:

Soil is a mixture of solids, liquids, and gases. Therefore, option B is correct.

Broken-down organic matter termed humus, living creatures, and broken-down rocks and minerals make up soil. Humus is nutrient-rich, squishy, and black.

Soil is a heterogeneous combination because it is made up of tiny fragments of various components. Water is an object. Water is a compound because it contains both hydrogen and oxygen. The substance oxygen is an element.

In addition to a porous phase that contains water and gases, soil consists of a solid phase made up of minerals and organic matter. The three states of soil are thus solids, liquids, and gases.

Thus, option B is correct.

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The freezing point of a solution of 15.0 g NaCl (sodium chloride) and 250 g water is -4.4°C.

Freezing point is the tempreture at which a liquid turns into a solid. It is the temperature it is the molecules of liquid stop moving really and start to format solid crystal structure.
This is because the freezing point depression of a solution is proportional to the molality of the solute. The molar mass of NaCl is 58.44 g/mol, so the solution has a molality of 0.25 m. Using the formula for freezing point depression, ΔTf = i Kf m, where i is the van't Hoff factor (2 for NaCl), Kf is the freezing point depression constant (1.86°C/m), and m is the molality, we can calculate that the freezing point depression of this solution is 0.46°C, resulting in a freezing point of -4.4°C.
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We are aware that one Avogadro constant (N a=6.022*1023; Na =6.022*1023 ) equals one mole of any substance. Since MM=197 g/mol --> n= 8.87 g/197 g/mol 0.450*10-2 mol in this instance.

Determine the substance's molecular weight in units of one mole, then divide the molar mass value by the molecular mass, and multiply the result by the Avogadro constant to get the required number of molecules.

Auric chloride (AuCl3) and chloroauric acid are the most prevalent gold compounds (HAuCl4). Aqua regia is a solution made by combining one component of nitric acid with three parts of hydrochloric acid (because it dissolved gold, the King of Metals).

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The IR spectrum of ethene is rather simple due to its simple structure.

The interpretation of infrared spectra involves the connection of absorption bands in the spectrum of an unknown composite with the known absorption density for types of bonds,

The right-hand part of the infrared spectrum of ethane, wavenumbers ~1500 to 400 cm-1 is examined in the fingerprint region. This is a very neat tool for interpreting IR spectra.

So we can conclude that Interpretation of the infrared spectrum of ethene​​ There are osmosis bands at ~1400 cm-1 due to scissoring H-C-H vibrations and ~3100 cm-1 from H-C-H

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Answer:

c. colour

other options will have effect on the bottle

Protons All Elements' Neutrons & Electrons (List + Images) Atomic number: all protons, neutrons, and electrons 5 Boron is made up of 5 protons, 6 neutrons, and 5 electrons.

6 Carbon consists of 6 protons, 6 neutrons, and 6 electrons. Protons, neutrons, and electrons total seven for nitrogen. Oxygen contains 8 protons, 8 neutrons, and 8 electrons. 34 more rows

Protons All Elements' Neutrons & Electrons (List + Images) 1 Atomic number All Elements Have Two Electrons. Diagram of 3 Shells 4 Neon Magnesium (5) Aluminum 6 Phosphorus 7 Sulfur 8 9 Argon Potassium 10 More things...

All elements' protons, neutrons, and electrons Diagram of a shell One proton, zero neutrons, and one electron make up hydrogen. Helium contains two protons, two neutrons, and two electrons.

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a. The acid on the left is H₂O and its conjugate base on the right is OH⁻.

b. The base on the left is HONH₂ and its conjugate acid on the right is HONH₃⁺.

Chemical reactions between acids and bases always produce its conjugate base and its conjugate acid. According to Bronsted-Lowry

HONH₂ + H₂O ⇄ HONH₃⁺ + OH⁻

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Since the number of hybrid orbitals equals the number of atomic orbitals, 4 hybrid orbitals are created by combining 4 atomic orbitals of the same atom.

Thus, four hybrid orbitals with a tetrahedral structure will be formed by the 1 s and 3 p orbitals.

The process of hybridization is the mixing of atomic orbitals with the same energy levels to create an equal number of new hybrid orbitals. This mixing typically produces hybrid orbitals with completely distinct energies, geometries, etc.

When two atomic orbitals in a molecule combine to generate a hybrid orbital, the energy of the orbitals of the individual atoms is redistributed to give orbitals of equivalent energy. Hybridization is the name of this procedure.

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The oxygen atom in the water molecule has two lone pairs, one of which could be used to form a bond with a proton and, therefore, the water molecule could act as a base in a reaction. Since water has the potential to act both as an acid and as a base, water is amphoteric.

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