Given that S is the central atom, write a Lewis structure of OSF4 in which the formal charges of all atoms are zero.

Answer:

94.16g of N2O

50.88g of O2

Explanation:

O2 reacts with N2 as follows:

2N2 + O2 → 2N2O

To find moles of N2O produced we need to convert the mass of each gas to moles to find limiting reactant and the moles of N2O that could be produced:

Moles N2 (Molar mass: 28g/mol):

60g N2 * (1mol / 28g) = 2.14 moles N2

Moles O2 (Molar mass: 32g/mol):

85g O2 * (1mol / 32g) = 2.66 moles O2

For a complete reaction of 2.14 moles of N2 are needed:

2.14 mol N2 * (1mol O2 / 2 mol N2) = 1.07 moles of O2.

As there are 2.66 moles of O2, reactant in excess is O2 and will remain:

2.66 moles - 1.07 moles =

1.59 moles O2. The mass is:

1.59 moles O2 * (32g / mol) =

And there are produced:

2.14 mol N2 * (2 moles N2O / 2 moles N2) = 2.14 moles N2O.

The mass is (44g/mol for N2O):

2.14 moles N2O * (44g/mol) =

Answer:

alpha-linolenic acid and linoleic acid

Explanation:

Hope this helps!

Answer:

I don't know what is the actual answer

According to the information in the fragment, it can be inferred that the cause of the increase in songbirds at the feeders is the addition of dried apples and raisins (option B).

To identify the cause of the increase in songbirds at the feeders we must carefully read the text and identify the information regarding the increase in the number of birds at the feeders.

According to this strategy we will find that Dr. Elsa found that by adding dried apples and raisins to the bird food mix, they increased in number, surely this mixture attracted the attention of more birds.

So, it can be concluded that Dr. Elsa's study is useful to know what is the cause of the increase in songbirds because after a detailed observation she was able to establish that the birds increased due to the addition of new ingredients to the food.

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Firstly till 5mL temperature remains constant then suddenly rise in temperature and then again constant.

What is fractional distillation?

Fractional distillation is a type of distillation process that separates a mixture of liquids into its individual components (or fractions) based on their boiling points. This process is commonly used in the petrochemical and oil refining industries to separate large volumes of crude oil into more useful fractions. The process takes advantage of the differences in boiling points of the various components of the mixture, which can vary widely. The process begins by heating the mixture to a temperature where at least one of the components will vaporize. The vapor is then collected and condensed back into the liquid phase. This process is repeated until all of the desired components are collected. This method of separation is extremely efficient and cost-effective compared to other methods, such as liquid-liquid extraction or chromatography.

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The mass of AgNO₃ present in the given solution will be 5.31grams.

The molality is defined as moles of solute, which in your case is silver nitrate, per kilogram of the solvent. This means that the  solution's molality essentially tells about the number of moles of solute present in 1 kg of solvent.

In this case, a 0.250 molal solution would contain 0.250 moles of solute for every 1 kg of solvent. The problem tells  that we have 125 g of solvent available. Using the solution's molality as a conversion factor to calculate how many moles of silver nitrate it must contain and we should not forget to convert the mass of solvent from grams to kilograms

Now, we know that silver nitrate has a molar mass of  169.87 g mol⁻¹, which means that the one mole of silver nitrate has a mass of 169.87 g

We can thus say that 0.03125 moles of silver nitrate will have a mass of 0.03125 moles of AgNO₃ × 169.87/ 1 mole of AgNO₃

=5.31g

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Answer:

Temperate Deciduous Forest

Explanation:

There are six sigma (σ) bonds: three C-H sigma bonds and three C-C and C-O sigma bonds. There is one pi (π) bond: the double bond between the carbon and oxygen atoms (C=O).

To determine the number of sigma (σ) and pi (π) bonds in an aldehyde, such as CH₃CH₂CHO (ethanal or acetaldehyde), let's examine the structure:

    H     H

    |     |

H - C - C - O

    |     |

    H     H

In this structure, the carbon atom (C) in the aldehyde group (CHO) is bonded to three other atoms: two hydrogen atoms (H) and one oxygen atom (O).

Sigma (σ) bonds occur when two atomic orbitals overlap end-to-end. Each single bond, whether it's a carbon-hydrogen (C-H) or carbon-oxygen (C-O) bond, is a sigma bond. Therefore, the molecule CH₃CH₂CHO has a total of six sigma (σ) bonds: three C-H sigma bonds and three C-C and C-O sigma bonds.

Pi (π) bonds occur when two parallel p-orbitals overlap sideways. Pi bonds are formed in multiple bond situations, such as double or triple bonds. In the given aldehyde, there is only one double bond between the carbon and oxygen atoms (C=O). Therefore, there is one pi (π) bond present in CH₃CH₂CHO.

To summarize:

There are six sigma (σ) bonds: three C-H sigma bonds and three C-C and C-O sigma bonds.

There is one pi (π) bond: the double bond between the carbon and oxygen atoms (C=O).

It's worth noting that sigma and pi bonds are types of covalent bonds, and they play a crucial role in determining the structure and reactivity of organic compounds.

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The coefficient of iron(III) oxide in the balanced equation is 2.

Process where one or more substances (reactants) are converted to different substances (products) through the rearrangement of atoms. Chemical reactions involves breaking of chemical bonds in the reactants, and formation of new chemical bonds in the products.

The chemical reaction between iron and oxygen to form iron(III) oxide is represented by the following balanced chemical equation:

4Fe + 3O₂ → 2Fe₂O₃

This equation shows that four moles of iron react with three moles of oxygen to produce two moles of iron(III) oxide. Therefore, the coefficient of iron(III) oxide in the balanced equation is 2.

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Answer:

1. V = 1.47L

Explanation:

1) Using PV = nRT

Where;

P = pressure (atm)

V = volume (L)

R = gas constant (0.0821 Latmk mol)

n = number of moles

T = temperature (K)

To get number of moles, we say mole = mass/molar mass

Molar Mass of C2H2 = 12(2) + 1(2)

= 24 + 2 = 26g/mol

mole = 3.86/26

mole = 0.148mol

T (K) = 28.5°C + 273.15

T(K) = 301.65K

PV = nRT

2.5 × V = 0.148 × 0.0821 × 301.65

2.5V = 3.665

V = 3.665/2.5

V = 1.466

V = 1.47L

R =

PV = nRT

P1 V1\ n1 T1 =P2 V2/ n2 T2

1. What volume, will be occupied by 3.86 g of C2H2 gas (acetylene) at 2.50 atm and a temperature

of 28.5 °C?

2. A gas at 650.0 torr and 75 °C is cooled to 25 °C. What is the pressure of the gas after it has

cooled?

Nick can explain to his daughter Layla that the sun left the sky and turned it dark because of a natural process called the day-night cycle.

The Earth rotates on its axis, and as it does so, different parts of the world face the sun, experiencing daylight. When the Earth continues to rotate and their location faces away from the sun, they experience night, and the sky turns dark. The best explanation for why the sky is now dark is that it is nighttime, and their part of the Earth is not facing the sun.

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A proportional relationship means that the ratio of ingredients remains the same. Therefore, the sets of ingredients that are in a proportional relationship with the recipe are:

6 Tbsp oil, 1.5 Tbsp vinegar, 1 Tbsp honey (the ratio of oil:vinegar:honey is 2:0.5:0.33)

15 Tbsp oil, 4 Tbsp vinegar, 3 Tbsp honey (the ratio of oil:vinegar:honey is 12:3:2)

24 Tbsp oil, 6 Tbsp vinegar, 4 Tbsp honey (the ratio of oil:vinegar:honey is 12:3:2)

The other options are not in a proportional relationship with the recipe, as the ratio of ingredients does not remain the same.

Answer:

Option C is correct

Explanation:

Covalent substances have weaker intermolecular attractions.

Scored 100% on my quiz on Edge :)

The characteristic that best explains the difference in melting behaviors is

The melting point of covalent substances ( i.e. substances bounded by covalent bonding ) is lower than the melting point of ionic substances, this is because of the weak intermolecular attractions which exists in covalent compounds and this makes atoms in covalent substance to dissociate easily .

Hence we can conclude that the characteristic that best explains the difference in melting behaviors is Covalent substances have weaker intermolecular attractions.

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Answer: As we all are aware that life on Earth is existed due to several environmental changes and there are several scientific factors of sustainability that support the survival and evolution of life on Earth.

Scientific factors of sustainability include solar energy, chemical cycle, and biodiversity that supported life on Earth. solar energy helps all organism and especially producers to gain energy and store the energy which further used in chemical cycles of transferring energy to other trophic levels.

Chemical cycle also involves the interaction of biotic and abiotic envrionment with each other that leads to environmental changes as well as organisms adapt themselves accordingly.

Biodiversity maintains the balance in the ecosystem and prevent dominancy of one organism otherwise it can lead to scarcity and organism would not be able to survive. Variation in biodiversity due to random mating  in the same species leads to evolution and produces new species of organisms.  

Hence, scientific factors of sustainability play major role in survival and evolution of life on the Earth.

Explanation: Is this what you need

Answer:

Atomic mass i believe..

Answer:A hypothesis is a tentative explanation that can be tested by further investigation. A theory is a well-supported explanation of observations. A scientific law is a statement that summarizes the relationship between variables. An experiment is a controlled method of testing a hypothesis.

Explanation:

The new volume  of the balloon when heated to 48.0°C is approximately 1.95 L, which corresponds to option a

To calculate the new volume of the balloon, we can use the formula for the relationship between the initial and final volumes and temperatures of a gas, known as Charles's Law. The formula is:

V1/T1 = V2/T2

Where V1 is the initial volume (1.80 L), T1 is the initial temperature (24.0°C), V2 is the final volume (which we want to find), and T2 is the final temperature (48.0°C).

First, we need to convert the temperatures from Celsius to Kelvin by adding 273.15 to each temperature:

T1 = 24.0°C + 273.15 = 297.15 K
T2 = 48.0°C + 273.15 = 321.15 K

Now, we can plug these values into the formula and solve for V2:

(1.80 L) / (297.15 K) = V2 / (321.15 K)

To find V2, multiply both sides of the equation by 321.15 K:

V2 = (1.80 L) * (321.15 K) / (297.15 K)

V2 ≈ 1.95 L

So, the new volume of the balloon when heated to 48.0°C is approximately 1.95 L, which corresponds to option a.

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The citric acid cycle, also known as the Krebs cycle or TCA cycle, does not directly require oxygen (O2) as a reactant, but it requires the presence of O2 in the cell or organism for its full functionality.

The citric acid cycle takes place in the mitochondria of eukaryotic cells and is an essential part of aerobic respiration. The cycle utilizes acetyl-CoA, produced from the breakdown of glucose, fatty acids, and amino acids, to generate ATP and other molecules that fuel cellular processes. Oxygen serves as the final electron acceptor in the electron transport chain, which is linked to the citric acid cycle, and is required to regenerate the NAD+ and FAD+ cofactors used in the cycle.

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--The complete Question is, does the citric acid cycle directly require oxygen (o2)? If no? Why? Explain. --

Answer:

36.04g H2O

Explanation:

2 moles H2O converted into grams using the mass of a mole of water as grams (1.01 x 2 + 16.00 = 18.02g = 1 mole h2o) is 36.04g

i can try to explain further if you want?

The answer is "a mix of alveolar air and dead space air."

Expired air has a greater oxygen content than alveolar air because it is a mix of alveolar air and dead space air.

Expired air is the air that is breathed out after breathing in oxygen.

Alveolar air, on the other hand, is the air that is in the lungs, specifically in the alveoli.

Dead space air is the air that is not involved in gas exchange, or the air that is in the trachea, bronchi, and bronchioles that does not reach the alveoli.

The answer is "a mix of alveolar air and dead space air."

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Answer:

Products

Explanation:

The end results of a chemical reaction are called products

-> In chemistry, a product is a substance that is formed as the result of a chemical reaction.

-> Not many other ways to word this as it is a definition

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

Products

General Formulas and Concepts:

Reactions

Reactants and Products in RxNs

Explanation:

The substances used in a chemical reaction is called the reactants, usually located on the left side of the arrow (if pointing right).

The substances produced in a chemical reaction is called the products, usually located on the right side of the arrow (if pointing right).

RxN examples:

Reactant + Reactant → Product + Product

Reactant + Reactant → Product

Reactant → Product + Product

Topic: Honors Chemistry

Answer:

d is the correct answer

Explanation:

Balanced Equation: CaSiO3 + 2 CO2 + H2O = Ca(HCO3)2 + SiO2

One or more chemical substances can react with each other and form one or more new substances through a process which is referred to as chemical reaction.

Reactants are the elements required for a reaction's initialization.

The components that remain after a reaction are called products.

Each kind of atom is to be present on both the reactant and product side of a chemical equation in a chemical reaction in order for it to be balanced.

On both sides of balanced chemical equations, the same number and type of each atom can be found.

A balanced chemical equation must have coefficients that are the smallest whole number ratio.

Mass is always conserved in chemical processes.

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If a naturally occurring sample of an unidentified element is found to contain three isotopes (A, B, and C) and consists of 90.5% isotope A (mass number 20), 0.3% isotope B (mass number 21), and 9.3% isotope C (mass number 22), the atomic weight of the element measured from the sample will be greater than 21 amu.

To calculate the average atomic mass, multiply the fraction through the mass number for every isotope, then add them together. Whenever we do mass calculations concerning elements or compounds (combos of elements), we usually use average atomic loads.

For instance, carbon-14 is a radioactive isotope of carbon that has six protons and 8 neutrons in its nucleus. We name it carbon-14 because the overall range of protons and neutrons within the nucleus also called the mass number, provides up to fourteen (6+8=14).

Together, the quantity of protons and the range of neutrons determine an detail's mass variety. Due to the fact, that an element's isotopes have barely unique mass numbers, the atomic mass is calculated by obtaining the suggested mass numbers for its isotopes.

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The central structural component of an amino acid is a carbon atom located in approximately in the middle of this molecule (Option 4).

An amino acid is a molecule that forms the subunits of proteins. These molecules are composed of a central carbon that links to the amino group, carboxyl group, and also to a side chain, commonly known as the R group (it depends on the properties of specific amino acids).

Therefore, we can conclude that amino acids have a central alpha-carbon atom that links to different groups in the molecule.

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The true statements are (a) Fe2+ is easy to oxidize to Fe3+ because removing the electron results in a half-filled d subshell, and (c) Mn2+ is difficult to oxidize to Mn3+ because Mn2+ has a half-filled d subshell, and by removing an electron, the d subshell of Mn3+ is not half-filled.

Statement (a) is true: Fe2+ is easy to oxidize to Fe3+ because removing one electron results in a half-filled d subshell. The electron configuration of Fe2+ is [Ar] 3d^6, and by removing one electron, it becomes Fe3+ with the electron configuration [Ar] 3d^5. Having a half-filled d subshell is a relatively stable configuration, so Fe3+ is formed readily.

Statement (b) is false: Fe2+ is not easy to oxidize to Fe3+ because ions with an odd charge are most stable for atoms with an even atomic number. The stability of ions with different charges is not determined solely by the odd or even nature of the charge but rather by the electron configuration and the stability of the resulting configuration.

Statement (c) is true: Mn2+ is difficult to oxidize to Mn3+ because Mn2+ has a half-filled d subshell, and by removing an electron, the d subshell of Mn3+ would not be half-filled. The electron configuration of Mn2+ is [Ar] 3d^5, and removing one electron would result in [Ar] 3d^4 for Mn3+, which is not a half-filled subshell and is less stable.

Statement (d) is false: Mn2+ is not difficult to oxidize to Mn3+ because ions with an even charge are most stable for atoms with an odd atomic number. Again, the stability of ions is determined by the electron configuration and the resulting stability, not solely by the even or odd nature of the charge.

Statement (e) is false: The stability of cations is not determined by the starting letter of the atom's name. The stability of cations is dependent on the electron configuration and the resulting stability of the ion.

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If you were to cut a metal element over and over a given, to the point that is barely visible would still be considered as an element. Yes, it is merely being chopped; nothing about its atomic composition is changed.

As a result of these stray neutrons splitting new atoms, more energy and neutrons are released, setting off a chain reaction. Only lasers, magnetic fields, and chemical reactions are capable of "breaking" objects apart at the atomic level.

Precision, ease of use, and clarity define the metal element. It also stands for joy, righteousness, and integrity. You may include the metal element into your home's design using the following items to enhance these aspects in your life: Colors include white, grey, and metallic hues.

The tiniest component of ordinary matter, an atomic , makes up a chemical element. Neutral or ionised atoms make up every solid, liquid, gas, and plasma. Atoms typically have a diameter of 100 picometers or less.

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If more \(H_{2}\) and \(N_{2}\) are added to the reaction 3\(H_{2}\) + N2 → 2\(NH_{3}\) after it reaches equilibrium, two events will occur Shift in Equilibrium and Increased Yield of \(NH_{3}\)

1. Shift in Equilibrium: According to Le Chatelier's principle, when additional reactants are added, the equilibrium will shift in the forward direction to consume the added reactants and establish a new equilibrium. In this case, more \(NH_{3}\) will be produced to counteract the increase in \(H_{2}\) and \(N_{2}\).

2. Increased Yield of \(NH_{3}\): The shift in equilibrium towards the forward reaction will result in an increased yield of \(NH_{3}\). As more \(H_{2}\) and \(N_{2}\) are added, the reaction will favor the production of \(NH_{3}\) to maintain equilibrium. This will lead to an increase in the concentration of \(NH_{3}\) compared to the initial equilibrium state.

It is important to note that the equilibrium position will ultimately depend on factors such as the concentrations of \(H_{2}\), \(N_{2}\), and \(NH_{3}\), as well as the temperature and pressure of the system. By adding more reactants, the equilibrium will adjust to achieve a new balance, favoring the formation of more \(NH_{3}\).

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