Demonstrate that the minimum cation-to-anion radius ratio for a coordination number of 8 is 0.732

The proton number has the highest value in the ion

In an atomic element Q, the mass number is the number of the proton and the neutron, the electron encircles around the nucleus of the atomic element.

Recall that:

∴

The atomic element Q+ has a positively charged ion, Thus, the proton number in the mass of the atomic element Q, therefore, has the highest value in the ion.

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Answer:

Botched surgery, inhaling harmful toxins and smoking.

Explanation:

Smoking is a death wish.

In conclusion, d. Arginine is the amino acid with the highest isoelectric point, at 10.76.

The amino acid that has its isoelectric point at the highest pH is d. Arginine. An amino acid is an organic compound that contains both an amino (-NH2) and a carboxyl (-COOH) functional group. It also has a side chain (R group) that is unique to each of the 20 different amino acids.

The isoelectric point (pI) is the pH at which the amino acid has a net zero charge. This is the pH at which it does not migrate in an electric field. An amino acid is positively charged when the pH is less than the pI and negatively charged when the pH is greater than the pI.

Arginine is an amino acid that has a positively charged guanidine group in its side chain. It is an essential amino acid, which means that the body cannot synthesize it and must obtain it from food. The isoelectric point of arginine is 10.76, which is higher than that of the other amino acids listed:

Lysine has a pI of 9.74

Histidine has a pI of 7.59

Threonine has a pI of 5.6

Alanine has a pI of 6.11

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The given reaction is the calcium carbide reaction of calcium hydroxide with water to produce acetylene.

The balanced equation is CaC2+2H2OCa(OH)2+C2H2.

Molar mass of acetylene, C2H2 = 2x12+2x1 = 26 g/mol

we get 64 g of CaC2 becomes 26 g of C2H2. 5.0g CaC2..

Molecular weight of Ca(OH)2=1(atomic weight of Ca)+2(atomic weight of O)+2(atomic weight of H)=40+2(16)+2(1)=40+32+2=74.

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Answer:

Explanation:

I think the answer is   Heart &  stomach,   but is this really a chemistry question?  or Biology?   :D

Answer:

A: heart

Explanation:

A muscle cell is also known as a myocyte when referring to either a cardiac muscle cell (cardiomyocyte), or a smooth muscle cell as these are both small cells.

The possible geometries of a metal complex with a coordination number of 6 is option e) 1, 2, and 3

The possible geometries for a metal complex with a coordination number of 6 are: Square planar: In a square planar geometry, the metal ion is surrounded by six ligands arranged in a flat square plane. The ligands are positioned at the corners of the square. Tetrahedral: In a tetrahedral geometry, the metal ion is surrounded by four ligands arranged in a three-dimensional tetrahedral shape. The ligands are positioned at the four corners of the tetrahedron. Octahedral: In an octahedral geometry, the metal ion is surrounded by six ligands arranged in a three-dimensional octahedral shape. The ligands are positioned at the six corners of the octahedron. Therefore, the correct answer is option e. The metal complex with a coordination number of 6 can exhibit all three geometries: square planar, tetrahedral, and octahedral, depending on the nature of the ligands and the electronic configuration of the metal ion.

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a)  The Molar mass of  C₆H₆ is 78 g/mol

b) The Molar mass of   C₁₅H₂₂0₂  284 g/mol

To calculate the molar mass of a compound, use the periodic table to determine the atomic mass of each element and then multiply the atomic mass by the number of atoms of that element present in the compound.

For example, the molar mass of C₆H₆ (benzene) is 78 g/mol, which is calculated as follows:
C = 12 g/mol x 6 atoms = 72 g/mol
H = 1 g/mol x 6 atoms = 6 g/mol
Total = 78 g/mol

The molar mass of C₁₅H₂₂O₂ (stearic acid) is 284 g/mol, which is calculated as follows:

C = 12 g/mol x 15 atoms = 180 g/mol
H = 1 g/mol x 22 atoms = 22 g/mol
O = 16 g/mol x 2 atoms = 32 g/mol
Total = 284 g/mol

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Answer:

this is how you do it

Explanation:

Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons

Answer:

Epsom salt is magnesium sulfate.

Alkaline earth metal, which is also sold in other products like milk of magnesia and Epsom salt magnesium sulfate and magnesium hydroxide.

The elements that make up group 2 of the current periodic table are the alkaline earth metals. Beryllium, magnesium, calcium, strontium, barium, and radium are among the elements in this group.

The physical and chemical characteristics of the elements in this group are quite similar. However, they are not often encountered in their elemental forms in nature.

Beryllium and radium are the first two elements in the second group of the periodic table, which is made up of the alkaline earth metals. They are all glossy, silvery-white metals with good reactivity, albeit not as good reactivity as the alkali metals.

Thus, alkaline earth metal is the components of Epsom salt ​are  magnesium sulfate and magnesium hydroxide.

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Answer: A: When the rider is at the top of the hill, her potential energy is greatest, and her kinetic energy is the least.

Explanation:

The total capacitance of 0.0050 F connected in series is 5.0 × 10⁻⁶ F or 5.0 µF.

When capacitors are connected in series, their total capacitance is less than the smallest capacitance value. This is due to the fact that the effective distance between the capacitor plates increases as more capacitors are added. As a result, the total capacitance of 0.0050 F connected in series can be determined using the following formula:

1/Ceq = 1/C1 + 1/C2 + 1/C3 + ...

where C1, C2, C3, etc. are the capacitance values of the capacitors connected in series.

To compute the total capacitance, substitute the known values to the formula:

1/Ceq = 1/5.0 × 10⁻³ F

Here's how to solve for Ceq:

1/Ceq = 1/5.0 × 10⁻³ F1/Ceq = 200Ceq = 1/200Ceq = 5.0 × 10⁻⁶ F

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Answer:

(Correct me if I am wrong)

Answer:

Read below

Explanation:

metal sulfate

metal sulfate

copper sulfate

copper nitrate

copper chloride

copper phosphate

hydrochloric acid, water

Potassium, sulfuric acid, water

A liquid at 50 degrees Celsius would have a melting point of 50 degrees Celsius and a boiling point of approximately 173.15 degrees Celsius.

What is the liquid?

iquid is a state of matter that has a definite volume, but does not have a fixed shape. It is one of the four fundamental states of matter, along with solid, gas, and plasma. Liquids tend to have a greater volume than solids, but geneLrally take the shape of their container. Examples of liquids include water, milk, blood, gasoline, and oil. Liquids are composed of molecules that tend to have greater mobility and can easily flow past each other. Depending on the temperature, pressure, and composition of the liquid, it can undergo changes in the state of matter.

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Answer: I would say D. Carnivores have more available energy and are at a higher trophic level because they receive energy directy from herbiores.

Explanation: The grass gets its energy from the sun, the herbivore eats the grass which then gives the energy to the herbivore, then the carnivore eats the herbivore which gives the herbivore all of it's energy.

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Answer:

Absolute zero is defined as the point where no more heat can be removed from something; it marks the point where something reaches its lowest possible amount of thermal energy. However, reaching absolute zero is impossible.

Explanation:

The statement that correctly describes one of the bulk elements necessary for life is: 3. Carbon (C) has 4 valence electrons and is likely to form covalent bonds.

Carbon is a crucial element for life as it forms the backbone of organic molecules, which are the building blocks of living organisms. In its atomic structure, carbon has six electrons, with four of them located in its outermost energy level, known as the valence electrons. These valence electrons determine how carbon interacts with other atoms to form chemical bonds.

Carbon is unique in that it can form strong covalent bonds with other carbon atoms, creating long chains or rings, which serve as the basis for complex organic molecules. The four valence electrons of carbon allow it to share electrons with other atoms, leading to the formation of stable covalent bonds. These covalent bonds involve the sharing of electron pairs between carbon and other atoms, such as hydrogen, oxygen, nitrogen, and many others.

This ability of carbon to form covalent bonds with a variety of elements is the foundation of organic chemistry, which is the chemistry of life. Carbon-based compounds, also known as organic compounds, include essential molecules like carbohydrates, lipids, proteins, and nucleic acids, which are vital for biological processes.

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The total pressure in the atm of the gases in the tank at the 450 k after the reaction is complete is 2 atm.

The chemical equation is as :

H₂ + 0.5 O₂  ---->  H₂O

The 1 mole of the H₂  = 0.5 mole of the O₂  

2 mole of the H₂ = 0.5 × 2 mole of the O₂  

Mole of the O₂   = 1 mol

The ideal gas equation is as :

P₁ / n₁ = P₂ / n₂

P₂ = P₁ n₂ / n₁

Where,

The pressure, P₁ = 8 atm

The moles  n₂ = 1 mol

The moles, n₁ = 4 mol

The pressure, P₂  = ?

P₂ = ( 8 × 1 ) / 4

P₂ = 2 atm

The  pressure in of the gases in the tank at the temperature 450 k after the reaction is complete is the 2 atm.

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When both parents shared different traits either it will be heterogeneous or homogenous traits,in that case offspring traits neither belongs to parents.However,chances are very that traits of children neither belongs to parents.

Unaffected parents can create impacted offsprings assuming that the two guardians are transporters (heterozygous) for the attribute being followed in the family. Latent traits are normally not communicated in each age. Finally, guys and females are similarly prone to communicate a latently acquired characteristic.

In the event that the latent characteristic is more than prevailing, the recessive traits will really become predominant and the predominant attribute will become recessive.Recessive alleles are meant by a lowercase letter (a versus A). Just people with an aa genotype will communicate a latent characteristic; consequently, posterity should get one passive allele from each parent to display a latent traits.

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Answer:

Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds. From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.

Explanation:

Answer:

Aerosol cans carry warnings on their labels that say not to incinerate (burn) them or store the cans above a certain temperature. This problem will sho why it is dangerous to dispose of aerosol cans in a fire. The sa in a used aerosol can is at a pressure of 103 kPa at 25℃.

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Good luck!

A. We are aware that the reaction's rate depends on the slowest, or rate-determining, step in the overall reaction mechanism. The first step of the reaction is the one that moves the most slowly in the example reaction mechanism. As a result, just one step (Step 1) would have an impact on the reaction's rate.

As a result, the rate law for the mechanism described is given by –

Step 1.  Cl2 2Cl  (slow)  ---------k1

Step 2.  Cl + C5H10HCl + C5H9  (fast) ---------k2

Step 2.  C5H9 + Cl C5H9Cl  (fast)  ---------k3

Step 1. is the slowest step. So, the reaction rate will depend upon on the rate of Step 1 only.

Hence, the rate law for the reaction is given by –

Rate = k1 [Cl2]

B. A species that is created and then consumed in situation is referred to as an intermediate of a reaction mechanism; hence, reaction intermediates never appear in the final rate law or in the actual reaction itself. The overall reaction in this reaction will show up, and likewise will be included in the rate law, as demonstrated above.

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To prepare a calibration curve is used A set of solutions with the exact same analyte concentration.

The calibration curve is the graphical representation of the relation in between the concentration or the amount of  substance, and the signal or the measurement obtained from the analytical instrument or the assay. The calibration curve is to constructed by the measuring the signal or the response of instrument or the assay at the different known concentrations and the amounts of substance, and the plotting of these values on the graph.

The resulting curve is used to determine the concentration and the amount of the substance in the unknown sample by the measuring its signal.

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Answer:

Just Try ur best ok

Explanation:

Answer:

The skillet got rusted.

Explanation:

In the context, Kelly kept the iron skillet in the sink which is full of water. After washing the dishes, she noticed the skillet's color is starting to change. She kept it for dry on the rack but the day later the skillet was ruined and damaged.

It was a chemical and physical change in the property of the metal where the iron skillet which was kept in the sink full of water oxidized due to the water content and the iron got oxidized to form form iron oxide which is known as rust. It damages the utensil and the color changes to muddy red or brownish red.

answer :

this is the structure if you want it

A chemical equation must balance according to the rule of conservation of mass. According to the rule, mass cannot be generated or removed during a chemical process. Here the number of hydrogen atoms is . The correct option is A.

A chemical equation is said to be balanced if the quantity of each type of atom in the reaction is the same on both the reactant and product sides. In a balanced chemical equation, the mass and the change are both equal.

Here the given equation is balanced as:

PCl₅ + 4H₂O → H₃PO₄ + 5HCl

So the number of hydrogen atoms is 8.

Thus the correct option is A.

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To produce 7.34 moles of CH4, we need 7.34 moles of C.

Answer: 7.3 moles of carbon are needed to make 117.4 grams of methane, CH4.

The molar mass of CH4 is 12 + 4(1) = 16 g/mol.

To determine how many moles of carbon are needed to produce 117.4 grams of CH4, we first need to calculate the number of moles of CH4 present in 117.4 grams of the compound.

Number of moles of CH4 = mass of CH4 / molar mass of CH4

Number of moles of CH4 = 117.4 g / 16 g/mol

Number of moles of CH4 = 7.34 mol

From the balanced chemical equation, we know that one mole of carbon reacts with two moles of hydrogen gas to produce one mole of methane.

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Resonance is most likely to take place in species that have conjugated systems, such as benzene rings or carbon-carbon double bonds.

Conjugated systems allow for the delocalization of electrons, creating multiple resonance structures. This results in the stabilization of the molecule and a lower energy state. Additionally, the presence of lone pairs of electrons can also contribute to resonance. The more resonance structures a molecule can form, the more stable it becomes. This is why species with conjugated systems are more likely to exhibit resonance. Examples of such species include aromatic compounds like benzene, as well as molecules with carbon-carbon double bonds like alkenes.

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