Why would writing the chemical formula only in its simplest form (empirical formula)
cause confusion when discussing a chemical molecule?

Explanation:

your answer is Kelvin because it is the SI unit of temperature

The plausible electron dot structures of I₂, OF₂, H₂S, NI₃ substances are attached below.

Lewis dot structures, also known as electron dot structures, are diagrams that show how atoms in a molecule are chemically bonded to one another. They also show how many lone pairs there are in total among all the atoms that make up the molecule.

An electron configuration writing guide. The shell number (n) comes first in the symbols used to represent the electron configuration, followed by the type of orbital and, finally, a superscript that represents the number of electrons in the orbital. Examples include As you can see from the periodic table, oxygen has 8 electrons.

To know more about covalent bonds visit:

https://brainly.com/question/10777799

#SPJ4

Answer: the answer is n= 0.487 mol

Explanation: i took the test and got it right

Answer:

.75

Explanation:

Answer:

0.75 cents

Explanation:

"The amount of heat that must be absorbed to convert 108 g of ice at 0°C to water at 70°C is approximately 68.12 kJ."

To calculate the amount of heat required to convert ice at 0°C to water at 70°C, we need to consider two steps:

Heat required to raise the temperature of ice from 0°C to its melting point (0°C).

Heat required to melt the ice at its melting point (0°C) and raise the temperature of water from 0°C to 70°C.

Let's calculate the heat for each step:

Step 1: Heating ice from 0°C to its melting point (0°C)

The specific heat capacity of ice is 2.09 J/g°C.

Heat = mass × specific heat capacity × change in temperature

Heat = 108 g × 2.09 J/g°C × (0°C - 0°C)

Heat = 0 kJ (No heat is absorbed as there is no change in temperature)

Step 2: Melting ice and heating water from 0°C to 70°C

The enthalpy of fusion (heat of fusion) for ice is 334 J/g, which represents the amount of heat required to melt ice at 0°C.

Heat for melting ice = mass × enthalpy of fusion

Heat for melting ice = 108 g × 334 J/g

Heat for melting ice = 36,072 J

Next, we need to calculate the heat required to raise the temperature of the water from 0°C to 70°C.

The specific heat capacity of water is 4.18 J/g°C.

Heat = mass × specific heat capacity × change in temperature

Heat = 108 g × 4.18 J/g°C × (70°C - 0°C)

Heat = 32,043.6 J = 32.04 kJ

Now, we can sum up the heat required for both steps:

Total heat = Heat for melting ice + Heat for raising water temperature

Total heat = 36,072 J + 32,043.6 J

Total heat = 68,115.6 J = 68.12 kJ

Therefore, the amount of heat that must be absorbed to convert 108 g of ice at 0°C to water at 70°C is approximately 68.12 kJ.

To know more about heat visit:

https://brainly.com/question/934320

#SPJ11

Answer:

Drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. ... The boundary between drainage basins is a drainage divide: all the precipitation on opposite sides of a drainage divide will flow into different drainage basins.

Explanation:

just looked it up

Answer:

Sodium chloride

Explanation:

There are several salts in seawater, but the most abundant is ordinary table salt or sodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration. Sodium chloride dissociates into Na+ and Cl- ions.

The initial pressure of the gas in the cylinder is 31.6 atm.

Using the combined gas law:

\(P_1V_1/T_1 = P_2V_2/T_2\)

where:

Rearranging:

\(P_1 = (P_2V_2/T_2) * (T_1/V_1)\)

We are given that \(V_1\) = 1.38 L,  \(V_2\) = 4.77 L, \(P_2\) = 803 kPa, and \(T_1\) =  \(T_2\)

\(P_1\) = (803 kPa x 4.77 L / T) x (T / 1.38) / 101.325

\(P_1\)  = 31.6 atm

Therefore, the initial pressure of the gas in the cylinder was approximately 31.6 atm.

More on combined gas law can be found here: https://brainly.com/question/30458409

#SPJ1

Answer:

Explanation:

Answer :

Reaction 1 : Add Zinc to Copper Sulfate.

Observations of Reactants :  Zinc is in solid state and copper sulfate in aqueous state.

Predicted Type(s) of Reaction : Single-displacement reaction

Observations of Products : Copper is in solid state and zinc sulfate in aqueous state.

The balanced chemical reaction :

Types of reaction : Single-displacement reaction : It is a type of reaction in which a single element displaces another element in a compound.

Reaction 2 : Mix Potassium Iodide and Lead (II) Nitrate.

Observations of Reactants :  Potassium iodide is in solid state and lead nitrate in aqueous state.

Predicted Type(s) of Reaction : Double-displacement reaction

Observations of Products : Lead iodide is in solid state and potassium nitrate in aqueous state.

The balanced chemical reaction :

Types of reaction : Double-displacement reaction : It is a type of reaction in which two reactants exchange their ions to form two new compounds.

Reaction 3 : Burn Copper Wire.

Observations of Reactants :  Copper is in solid state and oxygen in gas state.

Predicted Type(s) of Reaction : Oxidation reaction

Observations of Products : Copper oxide is in solid state.

The balanced chemical reaction :

Types of reaction : Oxidation reaction : In a oxidation reaction, a substance gains oxygen.

Reaction 4 : Heat Sodium Carbonate.

Observations of Reactants :  Sodium carbonate is in solid state.

Predicted Type(s) of Reaction :  Thermal decomposition reaction

Observations of Products : Sodium oxide is in solid state and carbon dioxide in gas state.

The balanced chemical reaction :

Types of reaction : Thermal decomposition reaction : It is defined as the breaking down of a chemical compound due to heating.

Reaction 1: Single-displacement reaction.

Reaction 2: Double-displacement reaction.

Reaction 3: Oxidation reaction.

Reaction 4: Thermal decomposition reaction.

A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.

Reaction 1: Add Zinc to Copper Sulfate.

Observations of Reactants:  Zinc is in a solid state and copper sulfate is in an aqueous state.

Predicted Type(s) of Reaction : Single-displacement reaction

Observations of Products: Copper is in a solid state and zinc sulfate is in an aqueous state.

The balanced chemical reaction :

Types of reaction: Single-displacement reaction.

It is a type of reaction in which a single element displaces another element in a compound.

Reaction 2: Mix Potassium Iodide and Lead (II) Nitrate.

Observations of Reactants:  Potassium iodide is in a solid state and lead nitrate is in an aqueous state.

Predicted Type(s) of Reaction : Double-displacement reaction

Observations of Products: Lead iodide is in a solid state and potassium nitrate is in an aqueous state.

The balanced chemical reaction :

Types of reaction: Double-displacement reaction

It is a type of reaction in which two reactants exchange their ions to form two new compounds.

Reaction 3: Burn Copper Wire.

Observations of Reactants:  Copper is in a solid state and oxygen is in the gas state.

Predicted Type(s) of Reaction : Oxidation reaction

Observations of Products: Copper oxide is in the solid state.

The balanced chemical reaction :

Types of reaction: Oxidation reaction

In an oxidation reaction, a substance gains oxygen.

Reaction 4: Heat Sodium Carbonate.

Observations of Reactants:  Sodium carbonate is in a solid state.

Predicted Type(s) of Reaction :  Thermal decomposition reaction

Observations of Products: Sodium oxide is in a solid state and carbon dioxide is in a gas state.

The balanced chemical reaction :

Types of reaction: Thermal decomposition reaction

It is defined as the breaking down of a chemical compound due to heating.

Learn more about the chemical equation here:

https://brainly.com/question/12363199

#SPJ2

The total energy needed to change 25 grams of water at 75 degrees to water vapor at 125 degrees is 60333.75 J

First, we shall determine the heat needed to change the water from 75 °C to 100°C. Details below:o

H₁ = MCΔT

H₁ = 25 × 4.184 × 25

H₁ = 2615 J

Next, we shall determine the heat needed to vaporize the water. Details below:

H₂ = m × ΔHv

H₂ = 25 × 2259

H₂ = 56475 J

Next, we shall determine the heat needed to change the steam from 100 °C to 125°C. Details below:

H₃ = MCΔT

H₃ = 25 × 1.99 × 25

H₃ = 1243.75 J

Finally, we shall determine the total heat needed to change the water from 75 °C to 120°C. Details below:

Q = H₁ + H₂ + H₃

Q = 2615 + 56475 + 1243.75

Total heat needed = 60333.75 J

Thus, we scan conclude that the total heat needed is 60333.75 J

Learn more about heat transfer:

https://brainly.com/question/25878495

#SPJ1

Ni²⁺ is the only ion on the list that can exist as both a high-spin and a low-spin octahedral complex. The correct option is B.

An electrostatic model called the crystal field theory (CFT) assumes that the metal-ligand connection is ionic and results only from electrostatic interactions between the metal ion and the ligand. When dealing with anions, ligands are viewed as point charges, and when dealing with neutral molecules, as dipoles.

The crystal field splitting theory predicts that some transition metal ions can exist as either high-spin or low-spin octahedral complexes, depending on the magnitude of the crystal field splitting parameter (Δ) relative to the pairing energy (P).

Of the ions listed, the only one that could exist as either a high-spin or a low-spin octahedral complex is Ni²⁺ (B).

Mn²⁺ (A) is a d⁵ ion and will always form a high-spin octahedral complex due to its large number of unpaired electrons.

Sc³⁺ (C) is a d⁰ ion and does not form octahedral complexes with ligands.

Cu²⁺ (D) is a d⁹ ion and typically forms a low-spin octahedral complex due to the stability of the half-filled d⁹ configuration.

Zn²⁺ (E) is a d¹⁰ ion and does not have any unpaired electrons to undergo spin pairing, so it will always form a low-spin octahedral complex.

Therefore, the correct answer is B) Ni²⁺.

To know more about crystal field theory here

brainly.com/question/23840749

#SPJ4

The bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

Bond order is defined as the number of electrons in bonding molecular orbitals minus the number of electrons in antibonding molecular orbitals divided by two. As a result, we may determine the bond order of this diatomic particle by the formula: Bond order = (number of bonding electrons - number of antibonding electrons) / 2

Bond order = (8 - 5) / 2

Bond order = 1.5.

This diatomic molecule, according to the bond order, is a stable molecule since the bond order is greater than 1, indicating that it is a double bond. The molecule has an overall bond strength that is greater than a single bond, but not as strong as a triple bond. So therefore he bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

Learn more about bond order at:

https://brainly.com/question/30641030

#SPJ11

The amount of water vapor in the atmosphere is measured as absolute humidity, whereas relative humidity is the ratio of the amount of water vapor to the maximum amount of water vapor that can be held by an air mass.

The amount of water vapor in the atmosphere is measured as specific humidity, whereas relative humidity is the ratio of the amount of water vapor to the maximum amount of water vapor that can be held by an air mass.

Therefore, the unit used to measure specific humidity is grams of water vapor per kilogram of air (g/kg), while the unit used to measure relative humidity is a percentage (%).

Specific humidity is an absolute measure of the amount of water vapor present in the air, while relative humidity is a relative measure that compares the actual amount of water vapor to the maximum amount that can be held at a given temperature.

To know more about "Relative humidity" refer here:

https://brainly.com/question/30765788#

#SPJ11

\(\huge{\boxed{\mathfrak{answer}}}\)

Study of the absorption and emission of light and other radiation by matter, as related to the dependence of these processes on the wavelength of the radiation.

\(\underbrace\mathrm\red{hope \: its \: help \: you}\)

Answer:

Earthquakes

Explanation:

The concentration of hydroxide ion is 0.0035 M when a 25.0 ml sample of a saturated Ca(OH)₂ solution is titrated with 0.023 m HCl  , and the equivalence point is reached after 38.0 ml of titrant are dispensed.

Concentration of hydroxide ion can be calculate as follow:

First we should determine The concentration of the Ca(OH)₂ by write the balanced chemical equation for the reaction

2 HCl + Ca(OH)₂ ⇒ CaCl₂ +2H₂O

This means,

2 moles of HCl are required to neutralized 1 mole Ca(OH)2 completely

so we can use this  formula:

\(\frac{C_A V_A}{C_B V_B} = \frac{n_A}{n_B}\)

Substituting the value we get from question into the formula, we get:

\(\frac{0.023 X38}{C_B X 25} = \frac{2}{1}\)

so,

\(C_B X 50 - 0.23 X 8\\C_B = \frac{0.23 x 38}{50} \\C_B = \frac{0.874}{50}\\ C_B = 0.0175 M\)

The concentration of Ca(OH)₂ solution is 0.0175 M.

To calculate the concentration of hydroxide ion we should write the balanced chemical equation for the ionize reaction

Ca(OH)₂⇒ Ca²⁺ +2OH⁻

with coefficient comparison we got

[OH] = 2 x 0.0175 M

[OH] = 0.035 M

Hence, the concentration of the hydroxide ion is 0.035 M

Learn more about concentration :

Brainly.com/question/25290615

#SPJ4

a. Production of NADH: Embden-Meyerhof pathway and Entner-Doudoroff pathway.

b. Catabolize glucose to pyruvate: Embden-Meyerhof pathway and Entner-Doudoroff pathway.

c. Production of ATP: Embden-Meyerhof pathway.

d. Production of precursor metabolites: Pentose phosphate pathway.

The Embden-Meyerhof pathway (glycolysis) and the Entner-Doudoroff pathway are both involved in the catabolism of glucose to pyruvate. They convert glucose into pyruvate through a series of enzymatic reactions, generating energy and producing NADH as a byproduct. The NADH molecules can then participate in further energy production processes.

The Embden-Meyerhof pathway also plays a major role in ATP production. Through substrate-level phosphorylation, it generates ATP directly from the breakdown of glucose. This pathway is especially important in anaerobic conditions when oxygen is not available as an electron acceptor in cellular respiration.

On the other hand, the pentose phosphate pathway is primarily responsible for the production of precursor metabolites, such as ribose-5-phosphate and erythrose-4-phosphate. These metabolites serve as building blocks for the synthesis of nucleotides, amino acids, and other essential cellular components.

Overall, the Embden-Meyerhof pathway and the Entner-Doudoroff pathway are involved in glucose catabolism and NADH production, while the Embden-Meyerhof pathway is responsible for ATP production. The pentose phosphate pathway, on the other hand, produces precursor metabolites needed for biosynthetic processes in the cell.

To learn more about pentose phosphate pathway, here

https://brainly.com/question/30404839

#SPJ4

There are 4.48 × 10-3 moles of \(Na_{2}S_{2}O_{3}\) are required to dissolve 0.35 mol of AgBr in a 1.0 L solution if Ksp for AgBr is 3.3 × 10-13 and Kf for the complex ion \([Ag(S_{2}O_{3})_{2}]^{3-}\).

AgBr dissociates in water, and we can write the reaction as shown below:

\(AgBr = Ag^{+} + Br{-}\)

Since \(Ksp = [Ag^{+}][Br^{-}]\), we can obtain the equilibrium concentrations of \(Ag^{+}\) and \(Br^{-}\) from the Ksp value, using the stoichiometry of the balanced equation. Here, the concentration of  \(Br^{-}\)  is equal to that of \(Ag^{+}\).

Therefore, \(Ag^{+}\) =  \(Br^{-}\)  = √Ksp = √3.3 × 10-13 M\(\sqrt{Ksp} = \sqrt{3.3 * 10^{-13}} M\)  \(5.74 * 10^{-7}\) M. To determine the number of moles of \(Na_{2}S_{2}O_{3}\) required to dissolve 0.35 mol of AgBr in a 1.0 L solution, we must calculate the concentration of \([Ag(S_{2}O_{3})_{2}]^{3-}\) ion first.

Kf = \([Ag(S_{2}O_{3})_{2}]^{3-}\)./(\(Ag^{+}\)\([S_{2}O_{3}^{-2}]\))

For \(Ag^{+}\), we use the concentration obtained from Ksp:

\(Ag^{+}\)= \(5.74 * 10^{-7}\) M

Kf =  \(4.7 * 10^{13}\) mol-1L-3

\([Ag(S_{2}O_{3})_{2}]^{3-}\)= Kf × \([Ag(S_{2}O_{3})_{2}]^{3-}\)

=  \(Ag^{+}\)/Kf

\([Ag(S_{2}O_{3})_{2}]^{3-}\)

= (\(5.74 * 10^{-7}\) M)/(\(4.7 * 10^{13}\)  mol-1L-3 × (\(5.74 * 10^{-7}\) M)2)

= \(4.48 * 10^{-3}\) M

To find the number of moles of \(Na_{2}S_{2}O_{3}\) required to dissolve AgBr in 1 L of solution, multiply the concentration of \([Ag(S_{2}O_{3})_{2}]^{3-}\) by the volume of the solution:

\(4.48 * 10^{-3}\)  M × 1 L = \(4.48 * 10^{-3}\) moles \(Na_{2}S_{2}O_{3}\).

\(4.48 * 10^{-3}\) moles of \(Na_{2}S_{2}O_{3}\) are required to dissolve 0.35 mol of AgBr in a 1.0 L solution.

We used the stoichiometry of the balanced equation and the Ksp value to determine the concentration of [Ag+] and [Br-]. Then, we calculated the concentration of \([Ag(S_{2}O_{3})_{2}]^{3-}\). from the Kf value and the [Ag+] value obtained from Ksp.

Finally, we multiplied the concentration of \([Ag(S_{2}O_{3})_{2}]^{3-}\) by the volume of the solution to obtain the number of moles of \(Na_{2}S_{2}O_{3}\) needed to dissolve 0.35 mol of AgBr in a 1.0 L solution.

4.48 × 10-3 moles of \(Na_{2}S_{2}O_{3}\) are required to dissolve 0.35 mol of AgBr in a 1.0 L solution if Ksp for AgBr is  \(3.3 * 10^{-13}\) and Kf for the complex ion \([Ag(S_{2}O_{3})_{2}]^{3-}\) is \(4.7 * 10^{13}\)  mol-1L-3.

For more information on moles kindly visit to

https://brainly.com/question/31390950

#SPJ11

The molecular formula of the compound is \(Cr_{2}S_{3}O_{12}\).

Mass of Cr = 0.70 g

Mass of S = 0.65 g

Mass of O = 1.30 g

Molecular mass = 392.2 g

Moles of Cr = \(\frac{0.70}{52.0}\)

                  = 0.01346 mol

Moles of S = \(\frac{0.65}{32.06}\)

                  = 0.02025 mol

Moles of O = \(\frac{1.30}{16.0}\)

                   = 0.08125 mol

Dividing both sides with lower quantity ;

\(Cr_{\frac{0.01346}{0.01346} } S_{\frac{0.2025}{0.01346} } O _{\frac{0.08125}{0.01346} }\)≅ \(CS_{1.5} O_{6}\)

And \((empirical formula )_{n} = molecular formula\)

                        392.2 = n (52.0 + 6 × 16.0)

                                  n = 2

Therefore, the molecular formula of the compound is \(Cr_{2}S_{3}O_{12}\).

Learn more about molecular formula here:

https://brainly.com/question/13058832

#SPJ4

Zinc sulfate (ZnSO4) can serve as a good source of zinc for the body. It is a water-soluble salt that can provide zinc ions for absorption in the gastrointestinal tract.

Ingesting zinc ions has been shown to have some effect in reducing the length of a cold. Therefore, zinc sulfate can be an effective option for boosting zinc levels in the body and potentially supporting immune function during a cold.

Learn more about gastrointestinal, click herehttps://brainly.com/question/29728753

#SPJ11

Answer:

The temperature will be 189.70 K.

Explanation:

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

In this case:

Replacing:

2 atm* 35 L= 4.5 moles* 0.082 \(\frac{atm*L}{mol*K}\) * T

Solving:

\(T=\frac{2 atm* 35 L}{4.5 moles* 0.082\frac{atm*L}{mol*K} }\)

T= 189.70 K

The temperature will be 189.70 K.

The energy as heat needed to increase the temperature of 0.40 mol of tungsten by 10.0 K is 96.8J.

The energy of a substance can be calculated using the following formula;

Q = mc∆T

Where;

According to this question, the molar heat capacity of tungsten is 24.2 J/K•mol. The energy as heat needed to increase the temperature of 0.40 mol of tungsten by 10.0 K is as follows:

Q = 0.40 × 24.2 × 10

Q = 96.8J

Therefore, 96.8J is the energy of the tungsten metal.

Learn more about energy at: https://brainly.com/question/17051460

#SPJ1

Answer:

d.6.02×1023 molcules

Answer:

D

Explanation:

6.02 x 1023 molecules

The moles of I₂ will form from the decomposition of 3.58g of NI₃ is 0.0136 moles.

Moles of any substance will be calculated as:

n = W/M, where

W = required mass

M = molar mass

Given chemical reaction is:

2NI₃ → N₂ + 3I₂

Moles of 3.58g of NI₃ will be calculated as:

n = 3.58g / 394. 71 g/mol = 0.009 moles

From the stoichiometry of the solution, it is clear that:

2 moles of NI₃ = produce 3 moles of I₂

0.009 moles of NI₃ = produce 3/2×0.009=0.0136 moles of I₂

Hence, option (3) is correct i.e. 0.0136 moles.

To know more about moles, visit the below link:

https://brainly.com/question/15303663

the numbers are going to be small so like a power but its at the bottom

NH3, H2O2, NHO2

A bond is considered nonpolar if the electronegativity difference is less than about 0.4.

A bond is considered polar if the electronegativity difference of the atoms in the bond is greater than 0.4. If the electronegativity difference is less than 0.4, the bond is essentially nonpolar. If there are no polar bonds, the molecule is non-polar. To determine whether a molecule is polar or nonpolar, it is often useful to look at the Lewis structure.

Nonpolar compounds are symmetrical. That is all sides around the central atom are identical. That is, they have no unshared pair of electrons and are bonded to the same element. Bonds with an electronegativity difference between atoms of 0.5 to 2.1 are called polar covalent bonds. A polar covalent bond is a covalent bond whose shares are unequal because atoms have unequal attractive forces on electrons.

Learn more about Electronegativity here:-https://brainly.com/question/24977425

#SPJ4

Answer:

28.05316 grams

Explanation: