Determine the shape and approximate bond angles for a compound that has a central carbon atom with double bonds to two sulfur atoms

The bond angle in Cl₂O is expected to be approximately (B) 109.5°. In Cl₂O, the central atom is chlorine (Cl) and it is surrounded by two oxygen (O) atoms. The molecule has a bent or V-shaped geometry due to the presence of two lone pairs of electrons on the central chlorine atom.

The electron pair repulsion theory (VSEPR theory) suggests that the lone pairs of electrons tend to occupy more space compared to the bonding pairs of electrons. As a result, the bonding pairs of electrons are pushed closer together, leading to a decrease in the bond angle.

In Cl₂O, the oxygen atoms have a greater electron density than the chlorine atom. This causes the bonding pairs of electrons to be pushed closer together, resulting in a smaller bond angle than the ideal tetrahedral angle of 109.5°.

The expected bond angle in Cl₂O is therefore approximately (B) 109.5°.

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Gamma radiation is the most penetrating. It can penetrate air, paper or thin metal. It may only be stopped by many centimetres of lead or many metres of concrete.

Research on organic synthesis is crucially dependent on chemical process design and optimisation. Changes in the reaction's catalyst, pH, financially sound, temperature, or time might result in changes in the reaction.

A scientist who has received training in the discipline of chemistry is known as a chemist (from the Greek chm(a) alchemy; replacement chymist from Mediaeval Latin alchemist). Chemists investigate the structure and characteristics of matter.

Research on organic synthesis is crucially dependent on chemical process design and optimisation. Changes in the reaction's catalyst, pH, financially sound, temperature, or time might result in changes in the reaction.

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Answer:

Number 2 is Direction

Explanation:

The old answer for number four was incorrect

I apologize for the inconvenience but I do not have an answer that fits in the lines for number 4

Ammonium Nitrate NH₄NO₃ has greatest % of nitrogen by mass than Ammonium Phosphate (NH₄)₃PO₄.

Two compounds are given, one is Ammonium Nitrate NH₄NO₃ and the other is Ammonium Phosphate (NH₄)₃PO₄.

The mass of Nitrogen is 14 g/mol. The mass of Oxygen is 16 g/mol. The mass of Phosphorous is 31 g/mol. The mass of Hydrogen is 1 g/mol.

Now, calculating the mass of Ammonium Nitrate NH₄NO₃,

Mass = 14+(4x1)+14+(3x16)

Mass = 80 g/mol.

% Nitrogen in Ammonium Nitrate = 14/80 x 100

% Nitrogen in Ammonium Nitrate = 17.5%.

The mass of Ammonium Phosphate (NH₄)₃PO₄,

Mass = 3[14 + (4x1)]+31+(4x16)

Mass = 149 g/mol.

% Nitrogen in Ammonium Phosphate = 14/149 x 100

% Nitrogen in Ammonium Phosphate = 9.39%.

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Answer:

A: A system of folded membranes

Explanation:

The endoplasmic reticulum is one of the organelles found in an eukaryotic cell. It is a membrane-bound organelle made up of two structures called CISTERNAE (sac) AND SHEET (membranous)

The endoplasmic reticulum is part of the endomembrane system, which is a system of folded membranes, which extends to the membrane that bounds the nucleus. It is of two types viz: rough endoplasmic reticulum and smooth endoplasmic reticulum.

Answer: Energy of motion :)

Answer: the answer to your question is the energy of motion

Explanation:

Answer:

jvjckv

Explanation:

vjch jhoccixtzrzizfzirz

Answer:

isopropyl alcohol

Explanation:

HOPE IT HELPS YOU

Answer:

The answer is C. Tellurium.

Explanation: If you look at the periodic table, tellurium is shown to have the greatest atomic mass. It is calculated easily. The answer is right on edge 2020.

Tellurium is the element having highest atomic mass.

Tellurium is the element has the greatest average atomic mass followed by iodine, krypton and bromine. The atomic mass of Tellurium is 127.6 u, the atomic mass of iodine is 126.9 u, the atomic mass of krypton is 83.8 u and the atomic mass of bromine is 79.9 u so on the basis of given data we can say that tellurium is the element that has the highest atomic mass or mass number.

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Answer:

20 atoms total

Explanation:

N (3) + H (12) + P (1) + O(4) = 20 atoms

ANSWER

EXPLANATION

Firstly, we need to define the word titration.

Titration is defined as a technique that is used to determine the known concentration of an unknown solution.

This normally occurs between an acid and a base

During titration, an indicator changes color when equilibrium has been attained between the two solutions. The solutions are normally acid and base. At equilibrium, the number of moles of acid is equal to the number of base.

Therefore, the correct answer is option C

Answer:

ceo que3

Explanation:

Answer:

D

Explanation:

In a solution of magnesium ions and sulfate ions, if the reaction quotient is less than the solubility product, all ions remain solvated.

When the reaction quotient (Q) is less than the solubility product (Ksp), it indicates that the concentrations of the dissolved ions in the solution are below the equilibrium concentrations. In this case, the solution is not saturated and there is no excess of ions to form a precipitate. Instead, the ions continue to stay in their solvated state, meaning they are surrounded by water molecules and are dispersed evenly throughout the solution. Therefore, in the given scenario, when the reaction quotient is less than the solubility product, there is no precipitation or formation of an emulsion. All ions remain solvated in the solution.

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Hello! HNO2 is not a strong acid so therefore your answer is A.

A rule of thumb, the rest are strong acids, so when you ever come across a similar question you will be able to rule out the wrong answers quicker :).

Strong acid list:

H2SO4

HNO3

HCLO4

HCLO3

HCL

HBr

HI

hope this helps!

pH is an important parameter in aquatic environments, and the relationship between pH and the mortality of minnows is a complex one.

Minnows are sensitive to pH, and changes in pH can cause mortality in these fish.

pH is a measure of the acidity or alkalinity of a solution. It is measured on a scale of 0 to 14, with 7 being neutral, values below 7 are acidic, and values above 7 are alkaline. Fish in freshwater ecosystems are sensitive to changes in pH, and changes in pH can cause mortality in these fish.

Minnows are among the fish species that are sensitive to pH changes and can die if pH conditions become too extreme.

Relationship between pH and mortality of minnows:

Minnows are more sensitive to acidic pH than alkaline pH. When the pH of water becomes too acidic, the fish may experience respiratory distress, which can lead to death.

Minnows can also die in water with alkaline pH, but this usually occurs at much higher pH levels. At high pH levels, fish can experience osmoregulatory failure and may not be able to maintain their internal balance. This can lead to death.

The ideal pH range for minnows is between 6.5 and 7.5, and maintaining the pH within this range is important for their survival. Changes in pH can occur due to a variety of factors, including acid rain, pollution, and changes in temperature.

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The changes are classified as follows:

1: Chemical change -  The addition of the water to quicklime

2: Physical change - The melting of candle wax

3: Physical change -  The change in colour of zinc oxide from white to yellow and vice versa during heating and after cooling, respectively

4: Physical change- The dissolution of common salt

5: Chemical change - The hardening of cement by the absorption of carbon (Iv) oxide​

1: The addition of water to quicklime (slaking of lime) is a chemical change. It involves a chemical reaction between calcium oxide (quicklime) and water to form calcium hydroxide (slaked lime). This reaction is exothermic and produces heat.

2: The melting of candle wax is a physical change. It involves a phase transition from a solid state to a liquid state due to the application of heat. The chemical composition of the wax remains unchanged during this process.

3: The change in color of zinc oxide from white to yellow and vice versa during heating and cooling is a physical change. It is a reversible process caused by the alteration of the crystal structure of zinc oxide. The change in color is due to the absorption or release of energy during the heating and cooling processes, respectively.

4: The dissolution of common salt (sodium chloride) is a physical change. It involves the separation of ionic bonds between sodium and chloride ions in the solid salt and their subsequent dispersal in water. The chemical composition of the salt remains the same; it simply forms a homogeneous mixture with water.

5: The hardening of cement by the absorption of carbon dioxide (CO2) is a chemical change. It involves a chemical reaction known as carbonation, where carbon dioxide reacts with the calcium hydroxide in cement to form calcium carbonate. This reaction leads to the formation of new chemical compounds and a change in the structure and properties of the cement, resulting in its hardening or curing process.

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Both proteins and peptides are made up of amino acids.

However, peptides contain far fewer amino acids than proteins. They are short strings of amino acids, typically consisting of between 2 and 50 amino acids.

Proteins, on the other hand, are made up of 50+ amino acids.

Structurally, peptides are usually less defined than proteins. Proteins have multidimensional structures and are more complex; fittingly, they are able to perform more complex functions than peptides. The quaternary structure of a protein involves several protein chains in an arrangement that’s closely-packed together. Each of the chains has its own primary, secondary and tertiary structure which are held together by hydrogen bonds.

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False. Carbon disulfide is not prepared by the reaction of coke carbon with sulfur dioxide. Instead, it is primarily produced by the reaction of carbon or hydrocarbon fuels with sulfur vapor at high temperatures, typically around 900°C.

This reaction is known as the "dry carbonization" process and produces carbon disulfide as the main product, along with carbon monoxide as a byproduct.

The process involves passing the sulfur vapor over hot coal or hydrocarbon fuel, which leads to the production of carbon disulfide gas.

Carbon disulfide is an important industrial solvent and is used in various applications, including in the production of viscose rayon fibers, pesticides, and rubber chemicals.

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Statement II: At the equivalence point of a weak acid-strong base titration, the solution is basic because all of the weak acid has been converted to its conjugate base, is true.Statement I: At the equivalence point of a strong acid-strong base titration, the solution is neutral and not acidic.

Therefore, statement I is false.Statement III: Adding a common ion to the solution will decrease the solubility of the insoluble salt is also true.Therefore, option (b) is the correct choice, i.e. III only. Note that the solubility product constant (Ksp) decreases when a common ion is added. This is known as the common-ion effect and it decreases the solubility of the insoluble salt.A titration is a technique used to determine the concentration of an unknown substance. An acid-base titration is a method used to determine the concentration of an acid or base by adding a known volume of a solution with a known concentration (standard solution) to an unknown volume of a solution with an unknown concentration.

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Answer:

32.25 J

Explanation:

Heat, H = ?

Mass, m = 5g = 5 / 1000 = 0.005 Kg

Initial Temperature = 75.0° C

Final Temperature = 25.0° C

Temperature change, ΔT = Final - Initial = 50° C

Specific heat capacity of lead, C = 129 (J/kg°C)

The relationship between these quantities is given by the equation

H = mCΔT

H = 0.005 * 129 * 50

H = 32.25 J

Answer:

It should be the answer D. A type of atom

Explanation:

A model is a "synthetic coordination entity that closely approaches the properties of a metal ion in a protein"

An ion is a charged atom.

Answer:

I believe it is B

Explanation:

Statement B is not true. Acyclic alkanes have two more hydrogen (H) atoms than cyclic alkanes with the same number of carbon (C) atoms.

Acyclic alkanes, also known as straight-chain alkanes, have a linear structure and contain the maximum number of hydrogen atoms bonded to carbon atoms. The general formula for acyclic alkanes is CₙH₂ₙ₊₂, where n represents the number of carbon atoms.

Cyclic alkanes, on the other hand, form closed ring structures and have two fewer hydrogen atoms than acyclic alkanes with the same number of carbon atoms. The general formula for cyclic alkanes is CₙH₂ₙ, reflecting the absence of two hydrogen atoms due to the formation of a cyclic structure.

Therefore, statement B is incorrect as it suggests the opposite relationship between the number of hydrogen atoms in acyclic and cyclic alkanes.

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An aqueous solution of sodium bisulfate (NaHSO4) is acidic. Sodium bisulfate dissociates in water to form the bisulfate ion (HSO4-) and the sodium ion (Na+). This reaction can be represented by the following chemical equation:

NaHSO4 (s) → Na+ (aq) + HSO4- (aq)

The bisulfate ion is a weak acid, and it dissociates further in water to form the sulfate ion (\(SO4^{2-}\)) and the hydrogen ion (H+):

HSO4- (aq) → H+ (aq) + SO42- (aq)

This additional dissociation of HSO4- increases the concentration of H+ ions in the solution, making the solution acidic. The presence of H+ ions in the solution means that the solution has a pH of less than 7, which is the definition of an acidic solution.

What is an aqueous solution?

An aqueous solution is a sort of mixture in which one or more solutes have been dissolved in water as the solvent. Any kind of material, including salts, acids, bases, and sugars, can serve as solutes. The word "aqueous" describes a solution's water content. These kinds of solutions are prevalent in biology and chemistry and are essential to numerous industrial and natural processes.

An aqueous solution is one in which water serves as the solvent. In chemical equations, it is often represented by adding to the appropriate chemical formula. For instance, Na⁺ + Cl⁻ might be used to depict a solution of table salt, or sodium chloride, in water.

Water, which makes up around 70% of the mass of the human body and is necessary for life, serves as the solvent in aqueous solutions.

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Answer:

The correct option is D

Explanation:

Multicellular organisms are organisms with more than one cell (usually having different cells exhibiting specialized functions). Examples of this organisms are mammals. These organisms generally look for food, eat this food, process/metabolize this food in order to derive nutrients from them. From the explanation above, it is clear that the correct option is D.

Answer:

D. Eat food – Digest food Use nutrients from food​

Explanation: