after drawing the best lewis structures for so32-, so42-, and so2, place them in order of bond length from shortest to longest?

The information provided in the query is insufficient to calculate the solution's acidity. This is due to the fact that the equation pH = -log [H+] is the sole way to determine acidity.

A solution's acidity can be determined by looking at its pH, which is a measurement of hydrogen ion concentration. Pure water slightly separates into ions with roughly equal amounts of hydrogen & hydroxyl (OH) ions. [H+] is 107 for such a neutral solution, or pH = 7.

Whenever the hydroniums and hydroxyls are not in balance, that occurs. The substance is acidic if it contains more positive charge hydroniums than that of negatively charged hydroxyls.

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The amount of energy that the water has absorbed, according to the question, is 105 joules.

However, Mildrexler, who wasn't engaged in the current study, claims that the Lut Desert has truly arisen as the hottest site on Earth due to its "consistently hot imprint over a broad region."

Mass of water = 5 grams

Temperature change equals 10 ° from 15 degrees.

The formula for the amount of heat is as follows:

Q = m x c x Δθ

Where m =mass

c = specific heat capacity and

Δθ = change in temperature

c = 4.2J/g/degrees

Q = 5 x 4.2 x 5

Q = 105Joules

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Answer:

2

Explanation:

M=mole/liters

C6H12O6; 180.2 g/mol

360.4g / 180.2 g per mol = 2. we have 2 moles now.

M=mole/liters

1M=2mole/xliters

2/1=2

2x2=1

1M=2/2

x=2

Answer:

2

Explanation:

Acellus

10 electrons can there be in energy level

The d sublevel has 5 orbitals, so can contain 10 electrons max.

Electrons exist around the nucleus of an atom in discrete, specific orbits.

Electrons can not just exist at any distance from the nucleus. These orbits

are called levels and we number them 1, 2, 3, 4, and so forth with the 1st

level being the orbit closest to the nucleus.

The levels can be broken down into sublevels. We have s, p, d, and f

sublevels. Level one has one sublevel – an s. Level 2 has 2 sublevels - s

and p. Level 3 has 3 sublevels - s, p, and d. Level 4 has 4 sublevels - s, p,

d, and f. The sublevels contain orbitals. Orbitals are spaces that have a high

probability of containing an electron. In other words, an orbital is an area

where the electrons live. There can be two electrons in one orbital

maximum. The s sublevel has just one orbital, so can contain 2 electrons

max. The p sublevel has 3 orbitals, so can contain 6 electrons max. The d

sublevel has 5 orbitals, so can contain 10 electrons max. And the 4 sublevel has 7 orbitals, so can contain 14 electrons

max.

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Ca(OH)2 entirely separates into Ca + and OH- ions due to its strong basic nature.

A example weak base is ammonia. Hydroxide ions are plainly absent from ammonia itself, but they are produced when it interacts with water. At any one time, roughly 99% of the ammonia is still present as ammonia molecules since the process is reversible.

NaOH totally separates from water to produce Na+ and OH. Because all accessible [OH] in NaOH is present in solution as [OH] and ready to take protons, it is regarded as a strong base.

[ OH-]  =  2 *0.014M

          =  0.028 M

  pOH = - log ( 0.028 )

          =    1.55

   pH   = 14 - pOH

          = 12.44

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The value of ΔE is 223J when a cylinder and piston assembly (defined as the system) is warmed by an external flame.

The energy in the system must conserve according to the first law of thermodynamics:

ΔE = Q - W

In this equation, E stands for internal energy, Q for heat flow (which is positive if the system absorbs the heat and negative if it releases heat), and W for work (positive if the system is expanding, and negative if the system is compressing).

Q so equals +586 J, and W equals +363 J.

ΔE = 586 - 363

ΔE = 223J

A version of the law of conservation of energy modified for thermodynamic processes is known as the First Law of Thermodynamics.

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The relation between the two chemical species is isotopes, as they have the same atomic number (17) but different number of neutrons (18 and 20 respectively), based on the available question.

The relation between the two species is isotopes if they have the same number of protons but a different number of neutrons.

If they have the same number of neutrons but different number of protons then it is Isotones.

If they have the same number of protons and neutrons but different atomic number then it is Isodiaphers.

If they have the same atomic mass but different atomic number then it is Isobars.

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The correct question can be:

Two atoms A and B have the following nuclear composition: Atom A consists of 17 protons, 18 neutrons, and 17 electrons, and atom B consists of 17 protons, 20 neutrons, and 17 electrons

What is the relation between the two chemical species?

a. Isobars

b. Isodiaphers

c. Isotopes

d. Isotones

The balanced chemical equation for this reaction is 6CO2+6H2O+Δ→C6H12O6+6O2 that the reaction is balanced with respect to mass and charge .

A chemical is any substance that has a defined composition. In other words, a chemical is always made up of the same "stuff." Some chemicals occur in nature, such as water. Other chemicals are manufactured, such as chlorine (used for bleaching fabrics or in swimming pools).

Air, water, iron, gasoline, clothing, stones, furniture, plastics, plants, food are all composed of chemicals, some natural, some synthetic. Chemicals can be single chemical molecules, like water, or mixtures of different chemicals. Air is a mixture nitrogen, oxygen, water, carbon dioxide + other chemicals.

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The pH of hydroxide ion be if the hydrogen ion concentration was 1 x 10-6 m is 8.

You need to know the hydronium ion concentration in moles per litre to determine the pH of an aqueous solution molarity. The equation pH = - log [H3O+] is then used to determine the pH. Seven is the neutral pH. An increase in pH above 7 indicates an increase in alkalinity, whereas a fall in pH below 7 indicates an increase in acidity (hydrogen ions) (hydroxyl ions). Each pH unit corresponds to a concentration change of 10 times.

Total H+ is 1x 10–6M;

pH = -log[H+] =6; pOH = 14–6 = 8

(OH-)=3.2 x 10-8 M

So, pOH=-log(OH-)

=-log(3.2 x 10-8) => 7.49

Pure water (H20) has a pH of 7 at 25 °C, but when exposed to atmospheric carbon dioxide, this equilibrium results in a pH of about 5.2.

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Ionic bonds are formed by potassium iodide (KI). Iodine and potassium have highly dissimilar electronegativities. Since ionic bonds are formed between atoms with a significant difference, the two would join together.

A substance with the formula Na2S N a 2 S is sodium sulfide. This is an ionic compound since it consists of a metal and a non-metal.

covalent fusion. The creation of ions by the passage of electrons results in the formation of ionic compounds like sodium chloride (NaCl). Ionic bonds are created when ions interact electrostatically.

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The six carbon compound formed when carbon dioxide and RuBP react immediately breaks down into two molecules of 3-phosphoglycerate, the Calvin cycle's first stable product.

Carboxylation is a chemical reaction that produces a carboxylic acid by exposing a substrate to carbon dioxide. Decarboxylation is the inverse reaction. Carbonylation (carboxylation) is the reaction in which an organic compound reacts with carbon monoxide, and carbonylation refers to reactions in which carbon monoxide is introduced into organic and inorganic compounds. Decarboxylation is a reaction in which carboxylic acids remove a carbon atom from a carbon chain. Carboxylation is a completely reversible process that occurs as the first chemical step in photosynthesis and involves the addition of CO2 to the compound.

Here,

When carbon dioxide and RuBP react, the six carbon compound formed immediately degrades into two molecules of 3-phosphoglycerate, the Calvin cycle's first stable product.

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The Fe (Iron) element separates the and fusion processes according to of interaction energy per nucleon.

A bigger atom undergoes fission when a neutron smashes into it, causing it to excite , separate into two smaller atoms, also referred to as fission products. A chain reaction may be started by other neutrons that are also emitted. An enormous quantity of energy is produced when each atom divides.

By dissolving large, heavy atoms, like uranium, into smaller ones, like iodine, caesium, strontium, xenon, and barium, to mention just a few, fission produces energy. To create the heavier helium, fusion combines light atoms, such as the two hydrogen isotopes deuterium and tritium.

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Answer: 3 Moles

Explanation: The reaction suggests that 1 mol of Fe₂O₃ reacts with 3 moles of CO and forms 2 moles of Fe and 3 moles of CO₂. If 1 mol of Fe₂O₃ reacts with 3 moles of CO. Hence, 5.25 mol of CO reacts with 1.75 moles of Fe₂O₃.

It would be more difficult for a ball bearing to fall through a beaker of hot honey than cold honey. This is because hot liquids are more viscous (thicker) than cold liquids, so the hot honey would provide more resistance to the ball bearing as it falls through.

Viscosity is a measure of a fluid's resistance to flow. Honey is a viscous liquid, which means it is thick and flows slowly. The viscosity of honey can be affected by temperature. As the temperature of honey increases, its viscosity decreases, which means it becomes thinner and flows more easily. Conversely, as the temperature of honey decreases, its viscosity increases, which means it becomes thicker and flows more slowly. So, hot honey is less viscous than cold honey.

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With sodium bromide and silver nitrate In this instance, sodium bromide (NaBr) is mixed with silver nitrate (AgNO3). The final product is white precipitate.

A drug called silver nitrate is employed during the cauterization procedure, which involves burning away skin in order to stop hemorrhage or stop an infection from spreading to a wound. Warts and granulation tissue (red, lumpy tissue covering a healing lesion) are other skin conditions that can be treated with it.

Contact with moisture causes the silver stick to work. When administered to wounds, potassium iodide sticks provide free substances to the tissue, which attach to tissue and clog blood vessels to produce an eschar.

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According to the Newton’s first law of motion, the force that Dominic needs to apply in order to stop the table from moving is 12 Newtons

Newton brought a further level of specificity to the aforementioned assertion by expressing the concept of force, which is a vector variable. His First Law states that an object that has a net force of zero operating on it will either remain at rest if it was initially at rest or it will maintain a constant velocity if it was initially moving at a constant speed. If the forces were balanced, then they would nullify one another and disappear. Because of this, the overall force is equal to zero.

To make zero net force, we can calculate it by:

Net force = Shira’s force + Dominic’s force

0 = 12 N + Dominic’s force

Dominic’s force = - 12 N or 12 N (opposite direction)

Hence, Dominic needs to apply 12N (opposite direction) to stop the table from moving.

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The molecular formula of compound A is C₂H₅., the molecular formula for compound B is C₇H₁₄.

Empirical formula is the most straightforward formula for a compound and provides the ratio of various atoms found in each compound molecule.

The empirical formula for the two compounds is CH₂. To determine the molecular formula, we need to know the molar mass of the compounds.

If the molar mass of compound A is 60.05 g/mol, and the empirical formula is CH₂, we can calculate the molecular formula by dividing the molar mass by the molar mass of the empirical formula.

60.05 g/mol / (12.01 g/mol + 2 x 1.01 g/mol) = 2.5

Therefore, the molecular formula for compound A is C₂H₅

Similarly, if the molar mass of compound B is 180.16 g/mol, and the empirical formula is CH₂, we can calculate the molecular formula by dividing the molar mass by the molar mass of the empirical formula.

180.16 g/mol / (12.01 g/mol + 2 x 1.01 g/mol) = 7.5

Therefore, the molecular formula for compound B is C₇H₁₄.

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Answer:

Touch, or contact, thermometers must touch the body in order to measure temperature. Remote, or no-contact, thermometers can measure body temperature without touching the skin.

Explanation:

hope this helps

Part A: The strength of an electric field that will balance the weight of a proton is approximately 9.8 N/C (or 9.8 x 10^9 N/C).

Part B: The direction of an electric field that will balance the weight of a proton is upward.

Part C: The strength of an electric field that will balance the weight of a electron is approximately 9.8 x 10^16 N/C.

Part A: The weight of a proton is given by the equation F=mg, where F is force, m is the mass of proton and g is the acceleration due to gravity. The mass of proton is 1.67 x 10^-27 kg. So F = 1.67 x 10^-27 kg x 9.8 m/s^2 = 1.63 x 10^-26 N. The strength of an electric field required to balance the weight of a proton is the force acting on the proton divided by the charge of proton, which is approximately 9.8 x 10^9 N/C.

Part B: The weight of a proton is an upward force and the electric field that will balance this force will also be upward.

Part C: Similarly, the weight of an electron is given by the equation F=mg, where F is force, m is the mass of electron and g is the acceleration due to gravity. The mass of an electron is 9.11 x 10^-31 kg. So F = 9.11 x 10^-31 kg x 9.8 m/s^2 = 8.89 x 10^-31 N. The strength of an electric field required to balance the weight of an electron is the force acting on the electron divided by the charge of electron, which is approximately 9.8 x 10^16 N/C.

electric fields we must take into account that the charge of the proton is positive and the charge of electron is negative.

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1.) Alkenes are important building blocks in organic synthesis. They are widely used as starting materials for the preparation of other organic compounds, such as alcohols, ethers, and aldehydes.

2.) Alkenes are widely used in the polymer industry to make a wide range of plastics, such as polyethylene and polypropylene, which are used in packaging, textiles, and consumer goods.

3.) Alkenes are used in catalytic processes, such as catalytic cracking and dehydrogenation, to produce important chemicals such as gasoline, diesel fuel, and ethylene, which are used in the production of many other chemicals.

4.) Alkenes are also important in petrochemical industry as starting materials for the production of many other chemicals such as solvents, lubricants, and other products. Alkenes are also used as intermediates in the synthesis of fine chemicals such as pharmaceuticals, agrochemicals and fragrances.

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As a result, chromium has a specific heat of 20.79 J/g C.

Metals are bright, opaque materials that efficiently conduct electricity and heat. Most metals are malleable and ductile, and they frequently have a higher density than other elements. When newly treated, polished, or broken, a material takes on a bright look and conducts heat and electricity reasonably well. Generally speaking, metals are malleable and ductile.

Electrons, neutrons, and protons are the building blocks of metals. The number of protons in an atom allows scientists to distinguish between atoms of different elements. The earth's crust contains around 25% metals.

The following formula is used to determine the heat(Q).

Q = m(s)(ΔT)

Here, m denotes the mass of the body, s denotes its specific heat, and T is the temperature change.

As a result, the heat lost by titanium metal equals the heat received by the water in the calorimeter.

(msΔT)Titanium= (msΔT)Water

Adding the indicated numbers to the equation above

24.26 x s x 98.3-25.6 = 82.3 x 23.3 x 25.6-23.3

s = 20.79 J/g C

Consequently, titanium has a specific heat of 20.79 J/g C.

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To find the percent composition of Carbon in a substance, you need to calculate the percent of the total mass that is made up of Carbon.

The first step is to add up the masses of all the elements in the substance to get the total mass:

2.59 g Carbon + 39.56 g Sulfur + 43.03 g Oxygen = 85.18 g

Next, divide the mass of Carbon by the total mass and multiply by 100 to get the percent of the total mass that is Carbon:

(2.59 g Carbon / 85.18 g) * 100 = 3.03% Carbon

So, the percent composition of Carbon in the substance is 3.03%.

Explanation:

Ionizable Amino Acids

Seven out of the twenty amino acids contain readily ionizable side chain groups. That means that at specific pH values, each side chain can participate in an acid-base reaction in which it can exchange a hydrogen atom with some other biomolecule. Since these side chains can form ions, that implies that they can also participate in forming ionic bonds. On top of these seven amino acids with ionizable side chains, all of the amino acids contain an ionizable alpha amino group and an alpha carboxyl group. The pKa value of each side chain group determines the pH value at which there will be equal concentrations of the acid and its conjugate base. The pKa value of the alpha amino group is 3.1 while the pKa value of the alpha amino group is 8.0. The pkA values of glutamic acid and aspartic acid are 4.1, the pKa of cysteine is 6.0, the pKa value of lysine is 8.3, the pKa value of lysine is 10.8, the pKa value of tyrosine is 10.9 and the pKa value of arginine is 12.5.

Answer: the hotter the temperature the less solubility.

Explanation:

if it is cold it will be solid but the hotter it gets the less solid it will get if that makes sense.

The solubilization curve is shifted towards lower NaOH concentration with the increase of temperature.

The dissolution of NaOH in water is produced in exothermic in nature. If the temperature is increases, the equilibrium will shift towards the backward direction. Therefore, to nullify the effect of increased in temperature, This will decrease the solubility of NaOH.

With a larger number of particles present, there is likely to be a more number of collisions and a faster rate of reaction occur. The rate of reaction increases as the temperature is increases. When the concentration increases, the number of reactant particles also increases.

Thus, The solubilization curve is shifted towards lower NaOH concentration with the increase in temperature.

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The concentrations of both reactants and products are not changing. Thus, ΔGrxn = -318.2 kJ/mol.

Concentration is a measure of how much of a substance is dissolved in a given quantity of a solution.

Net Cell Equation: Co(s) + 2 Ag^+(aq) → Co^2+(aq) + 2 Ag(s)
E°cell = -0.337 V
E cell = -0.337 V
ΔG°rxn = -159.1 kJ/mol
ΔGrxn = -159.1 kJ/mol

The standard potential of the cell, E°cell, is calculated by subtracting the standard reduction potential of the reduction half-reaction (Ag+ + 1e- → Ag, E° = +0.799 V) from the standard reduction potential of the oxidation half-reaction (Co → Co2+, E° = -1.136 V). Thus, E°cell = -1.136 V + 0.799 V = -0.337 V.
The cell potential, Ecell, is equal to the standard potential, E°cell, since the concentrations of both reactants and products are not changing. Thus, Ecell = -0.337 V.
The standard reaction Gibbs free energy, ΔG°rxn, is calculated by subtracting the Gibbs free energy of the products (2 Ag(s): ΔG°f = 0 kJ/mol) from the Gibbs free energy of the reactants (Co(s): ΔG°f = 0 kJ/mol, 2 Ag+ (aq): ΔG°f = -318.2 kJ/mol). Thus, ΔG°rxn = 0 kJ/mol - (-318.2 kJ/mol) = -318.2 kJ/mol.
The reaction Gibbs free energy, ΔGrxn, is equal to the standard reaction Gibbs free energy, ΔG°rxn, since the concentrations of both reactants and products are not changing. Thus, ΔGrxn = -318.2 kJ/mol.

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After 30 minutes of being in vinegar, the penny will be covered in a thin layer of copper oxide.

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The ranking of the given acids from weakest to strongest can be as follows:

A) HFO2 < HClO2 < HBrO2 < HIO2

B) HIO < HIO2 < HIO3 < HIO4

C) HF < HCl < HBr < HI

Acidity is determined by the strength of the acid's bond to its hydrogen ion (H+). The weaker the bond, the stronger the acid. In general, acid strength increases as you go down a group in the periodic table and as the oxidation state of the central atom increases.

A) The order of acidity is based on the oxidation state of the central atom, Oxygen has -1 oxidation state, hence HIO2 has the highest oxidation state and would be the strongest acid.

B) The order of acidity is based on the oxidation state of the central atom, Iodine has -1 oxidation state and -3 oxidation state, hence HIO4 has the highest oxidation state and would be the strongest acid.

C) The order of acidity is based on the electronegativity of the central atom, Fluorine is the most electronegative element hence HF is the strongest acid, and Iodine is the least electronegative element hence HI is the weakest acid.

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Answer:

1.16mol of NaCl

Explanation:

Question:

1. How many formula units are in 67.69 grams of salt?

2. How many molecules are in 44.99 grams of water?

Converting mass to moles:

In a given amount of moles (n) of a substance there will be a given amount of mass (m) of that substance. m and n are related by the molar mass (M):

m = n x M

Hence, if we want to find n, we must rearrange the equation:

n = m/M

Answer and Explanation:

The word 'salt' in this question will be assumed to mean table salt - sodium chloride, NaCl - with a molar mass of 58.44g/mol.

Hence, 67.96g will contain 67.69g / 58.44g/mol = 1.16mol of NaCl.

We convert from moles to number of molecules/formula units by multiplying by Avogadro's constant(6.02×10²³):

1.16 x 6.02×10²³ = 6.98×10²³

formula units of NaCl

Water has a molar mass of 18.02g/mol. Therefore, 44.99g of water will represent 44.99g / 18.02g/mol = 2.50mol of water.

2.50 x

6.02

×

10

23

=

1.505

×

10

24

molecules of water

The claim is accurate. Below its pi, an amino acid will have a positive average charge. Below its pi, an amino acid will often have a positive average charge.

Body protein as well as other vital nitrogen-containing substances including creatine, steroid hormones, and also some neurotransmitter cannot be produced without amino acids. Although limitations are expressed in terms of protein, amino acids are a biological necessity.

A protein is made up of one or more polypeptide chains—chains of amino acids—whose sequence is encoded by a gene. While the body can synthesis some amino acids, essential amino acids cannot and must be received from diet.

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Molarity is a unit of concentration that expresses the number of moles of solute per liter of solution. To calculate the molarity of a solution made by diluting a concentrated solution, you can use the following formula:

Molarity = moles of solute / liters of solution

First, you have to calculate the number of moles of solute in the original solution, you can use the formula:

moles of solute = molarity x liters of solution

moles of solute = 18.0 M x 0.3 L = 5.4 moles

Then, you can use this value to calculate the molarity of the dilute solution:

Molarity of dilute solution = moles of solute / liters of solution

Molarity of dilute solution = 5.4 moles / 3.5 L = 1.54 M

So, the dilute solution has a molarity of 1.54 M.

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