How many moles are in 314 g of propane

Explanation:

1 sulfur dioxide 2 monosulfur dinitride 10 nitrogen dioxide

Determining the nonprotein respiratory quotient (RQ) and measuring protein oxidation involve considering various factors and employing specific methods. The nonprotein RQ reflects substrate utilization during metabolism and can be calculated through indirect calorimetry by measuring oxygen consumption and carbon dioxide production.

Measuring the amount of protein oxidized requires considering nitrogen balance, which accounts for nitrogen intake and excretion.

Methods include nitrogen balance studies, stable isotope tracers, and marker compounds.

Nitrogen balance studies involve measuring nitrogen intake and excretion to determine the difference, indicating protein oxidation.

Stable isotope tracers track labeled nitrogen from ingested protein. Marker compounds like urea or ammonia serve as indicators.

These techniques require specialized equipment and are used in research to understand metabolic processes and nutrient utilization.

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Answer: the answer is b

Explanation:

Answer:

Explanation:

B answer

Answer:

Non point source pollution

Explanation:

Point source pollution is when any contaminant enter the environment from an easily from an easily identified and confined place.

Non point source pollution is pollutants released in a wide space. Including oil, grease, and toxic chemicals.  

Answer:

In order to name organic compounds you must first memorize a few basic names. These names are listed within the discussion of naming alkanes. In general, the base part of the name reflects the number of carbons in what you have assigned to be the parent chain. The suffix of the name reflects the type(s) of functional group(s) present on (or within) the parent chain. Other groups which are attached to the parent chain are called substituents.

Ionic and covalent bonds differ in terms of bond formation, electron sharing, and the types of elements involved. When the pH goes from 7 to 4, the concentration of H+ ions increases, leading to a decrease in OH- concentration. This shift indicates a more acidic solution.

Ionic bonds occur between a metal and a non-metal, where electrons are transferred from the metal to the non-metal, resulting in the formation of charged ions. Covalent bonds, on the other hand, occur between non-metal atoms that share electrons to achieve a stable electron configuration.

When the pH goes from 7 to 4, it indicates a decrease in the pH value, shifting towards acidity. The pH scale is logarithmic, meaning that each unit change represents a tenfold difference in H+ ion concentration. As the pH decreases, the concentration of H+ ions increases, while the concentration of OH- ions decreases. This is because the concentration of H+ and OH- ions in water is inversely proportional, following the equation: [H+][OH-] = 1.0 x \(10^{-14}\) at 25°C. Therefore, when the pH decreases, the concentration of H+ ions increases, leading to a decrease in OH- concentration.

Based on the pH table, a pH of 7 represents a neutral solution, where the concentration of H+ ions is equal to the concentration of OH- ions. As the pH decreases to 4, the concentration of H+ ions increases by a factor of 1,000, while the concentration of OH- ions decreases accordingly. This shift towards a higher H+ concentration indicates a more acidic solution.

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Option b-A The isotope ⁷₂H (7He) is more tightly bound than ⁵₂H (5He).

The stability of an isotope depends on its binding energy, which represents the amount of energy required to break apart the nucleus into its constituent particles. Higher binding energy indicates greater stability and tighter binding of nucleons within the nucleus.

To determine which isotope is more tightly bound, we compare their binding energies. The binding energy is related to the mass defect, which is the difference between the sum of the masses of the individual nucleons and the actual mass of the nucleus.

In this case, the atomic mass of ⁷₂H (7He) is 7.027991 u, and the atomic mass of ⁵₂H (5He) is 5.012057 u. The greater the mass defect, the more tightly bound the nucleus. Since the mass defect of ⁷₂H (7He) is greater than that of ⁵₂H (5He), it implies that ⁷₂H (7He) has a higher binding energy and is more tightly bound.

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The reason we learn an algebraic method to balance chemical equations instead of using a trial-and-error method is because the algebraic method is more efficient and reliable.

Using trial and error can be time-consuming and may not always lead to the correct solution. Balancing chemical equations requires ensuring that the number of atoms of each element on both sides of the equation is equal. This can become complex when dealing with more complicated equations.

The algebraic method, on the other hand, provides a systematic approach that can be applied to any chemical equation, regardless of its complexity. By applying mathematical principles and using variables, we can determine the correct coefficients to balance the equation. This method is programmable, which means we can use computer algorithms to solve equations more quickly and accurately.

Additionally, the algebraic method allows us to analyze whether a reaction can actually be balanced. It helps us understand the stoichiometry of the reaction and determine the correct ratios of reactants and products.

Contrary to the belief that it is only meant to complicate things, learning this method is essential for a deeper understanding of chemistry and problem-solving skills. It enables us to apply logical thinking and mathematical concepts to chemical reactions, which is crucial in various scientific and industrial applications.

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Answer:

Water

Explanation:

An aqueous solution is a solution in which the solvent is water.

For a soil that contains 0.5 solids, 0.35 air, and 0.15 water in its volume fraction, the air/soil partition coefficient for benzene and trichloroethylene is 3.33.

Benzene is an organic compound with the molecular structure C6H6. The benzene molecule is made up of six carbon atoms joined to one another in a planar ring and one hydrogen atom coupled to each one. Due to its pure carbon and hydrogen atom composition, benzene is a hydrocarbon. In fluid mechanics and chemistry, the volume fraction is the ratio of a constituent's volume to the sum of all the other constituents' volumes.

0.5/15 = 3.33 is the benzene coefficient.

coefficient for benzene = 0.5/0.15 = 3.33

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Answer:

Sort of answer, but it'll lead you in the right direction I hope.

Explanation:

I mean, ofc, the molecules or atoms or whatever the circles are can't be put together that way bc matter says so. It looks like the other diagram is showing water or gas, and if it were turning into the one on the right, then it would usually either settle into water if it was gas or become a single solid object like water. If this is gas, then it doesn't make sense, because gas particles are always separate from each other.

The density of the substance is 0.77 g/cm³.

The density of a substance is calculated by dividing its mass by its volume. In this case, the mass of the substance is 85g and the volume is 110cm³.

Density = Mass / Volume

Density = 85g / 110cm³

To obtain the answer, we divide 85g by 110cm³.

Calculating the division, we find that the density of the substance is approximately 0.77 g/cm³.

Therefore, the density of the substance is 0.77 g/cm³.

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The different possible ways of arranging the particles of a system are called states. The greater the number of these states, the higher the entropy of the system.

By ascribing definite values to a satisfactory amount of variables, one can define the state of a system. In simple terms, it is the description of a system condition in terms of properties that are measurable or observable, for example, pressure, temperature, etc.

Entropy is a measure of the disorder or randomness in a system, and an increase in the number of states corresponds to an increase in entropy. The S.I. unit for entropy is joules per kelvin. Entropy is a measurable physical property. In a thermodynamic system, it is an extensive property.

Example: There is an increase in entropy when a block of ice melts.

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Non-combustible

eg:-glass,water,stone, Portland cement etc ...

Answer:

Noncombustible

Explanation:

So

Some examples are ,glass ,stone

An atom X that has 12 protons and 12 electrons, loses 2 electrons to form an ions,  the charge of ion will be X⁺² the number of protons 12 and electrons in the ions is 10.

An atom X has 12 protons and 12 electrons that means X is a neutral atom and the atomic no. is 12 because total no. of protons is equal to atomic number. When it looses the 2 electrons then atom becomes positively charged ion . the charge on the ion is +2.

now, the no. of protons will be = 12

number of electrons will be = 12 - 2 = 10

Thus, An atom X that has 12 protons and 12 electrons, loses 2 electrons to form an ions,  the charge of ion will be X⁺² the number of protons 12 and electrons in the ions is 10.

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Explanation:

[Ne] 3s² 3p⁵

Image result for What is the electron configuration of chlorine?

Atomic number: 17

Symbol: Cl

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Argon

Amount of bromine that reacted =

100.0 g - 8.5 g = 91.5 g

Amount of compound formed =

100.0 g + 10.3 g - 8.5 g = 101.8 g

Natural sources of bromide include salt lakes, seawater, the crust of the planet, and submarine brines ( Van Briesen 2014 ). Bromide is also present in various amounts in fossil fuels like coal.

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Answer:Nucleic acid,glucose,and amino acids

Answer:

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms

Explanation:

Answer:

distance & electric force are inversely related

Explanation:

increasing distance decreases electric force

increasing distance decreases electric charge by a square

increasing distance decreases electric field magnitude by a square

britannica physicsclassroom

The specific heat capacity of water is 4.18 J/(g K) and the given amount of water is more than 100 grams. We need to calculate the energy absorbed by the water to reach boiling point when 5.39 × 10^5 J of heat is supplied.

The amount of water used is not provided in the question, therefore, let's first calculate the energy required to raise the temperature of 100g of water from room temperature (25°C) to its boiling point (100°C) using the formula,Q = m × c × ΔTwhere,Q = energy absorbedm = mass of waterc = specific heat capacity of waterΔT = change in temperature of water= 100 - 25 = 75°C (since the water is heated until it just begins to boil)Thus,Q = \(100 g × 4.18 J/(g K) × 75°C= 31350 J= 31.35 kJ\) of energy is required to heat 100g of water from 25°C to 100°C.

Now, let's determine the mass of water using the amount of heat energy supplied:Q =\(m × c × ΔT, where Q = 5.39 × 10^5 Jm = Q / (c × ΔT)= 5.39 × 10^5 J / (4.18 J/(g K) × 75°C)= 204.55 g\)(approx.)Therefore, more than 100 g of water is required to absorb 5.39 × 10^5 J of heat to reach its boiling point.

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Natural disaster victims should be provided with 1 to 3 gallons of water per day. So, the correct answer is option a.

Natural disaster victims should be provided with 1 to 3 gallons of water per day. This is because access to clean drinking water is essential for survival and can become limited or contaminated during natural disasters. While some populations may be able to survive without water for short periods of time, it is important to prioritize providing adequate water to disaster victims to prevent dehydration and related health issues. 1 to 3 litres of water should be given to victims of natural disasters each day. This is due to the fact that having access to clean drinking water is crucial for survival and that it may be scarce or tainted in the event of a natural disaster.

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Answer:

lanthanum

Explanation:

lanthanum is an inner transition metal

35 bags of Vigoro Ultra Turf fertilizer and 20 bags of Parker's Premium Starter fertilizer are required to yield a mixture containing 101101 pounds of nitrogen, 103103 pounds of phosphoric acid, and 2828 pounds of potash.

To determine the number of bags of each type of fertilizer required to yield a specific mixture of nutrients, we can set up a system of equations based on the given nutrient content of each bag.

By solving these equations, we find that 35 bags of Vigoro Ultra Turf fertilizer and 20 bags of Parker's Premium Starter fertilizer are needed to obtain the desired mixture.

Explanation:

Let's assume x represents the number of bags of Vigoro Ultra Turf fertilizer and y represents the number of bags of Parker's Premium Starter fertilizer. We can set up the following equations based on the nutrient content of each bag:

For nitrogen (N): 29x + 18y = 101101

For phosphoric acid (P2O5): 33x + 25y = 103103

For potash (K2O): 44x + 66y = 2828

To solve this system of equations, we can use various methods such as substitution or elimination. Here, we'll use the elimination method:

First, we multiply the first equation by 33, the second equation by 29, and the third equation by 9 to create a common coefficient for x:

957x + 594y = 3339933

957x + 725y = 2988917

396x + 594y = 25452

By subtracting the third equation from the second equation, we obtain:

561x = 2968465

Dividing both sides by 561, we find x = 5285.

Substituting this value back into the first equation, we have:

29(5285) + 18y = 101101

153365 + 18y = 101101

18y = -52264

y = -2904.7

Since the number of bags cannot be negative, we round down to the nearest whole number, resulting in y = 2904.

Therefore, 35 bags of Vigoro Ultra Turf fertilizer and 20 bags of Parker's Premium Starter fertilizer are required to yield a mixture containing 101101 pounds of nitrogen, 103103 pounds of phosphoric acid, and 2828 pounds of potash.

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Answer:

malleable

Explanation:

The image represent in malleable property of metal.

The image possibly represents the photoelectric effect of a metal, which is when it emits electrons after being exposed to electromagnetic radiation. Metals are also characterized by physical properties such as conductivity, malleability, metallic luster, and metallic bonding.

Based on your question, the image possibly represents the photoelectric effect, a key property of metals. This phenomenon occurs when a metal surface exposed to electromagnetic waves of a certain frequency absorbs radiation and emits electrons. These emitted electrons are called photoelectrons. Metals can also exhibit free electron model behavior, where electrons freely roam within the metal structure.

Metals possess unique physical properties like conductivity, malleability, and metallic luster. Malleability refers to the metal's ability to deform without breaking, while conductivity refers to the metal's ability to transfer heat or electricity. A metallic luster gives metals their characteristic shiny appearance.

Finally, metals are also known for their metallic bonding—a unique force that holds together the atoms within a metallic solid. Metallic bonding gives rise to many useful and varied bulk properties of metals.

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Answer:

First ionization energy decrease

The concentration of CO (g) in the equilibrium mixture is 0.020 M. In other words, only a small amount of CO (g) is produced in this reaction at 1000°C. T 0.020 M.

The concentration of CO in an equilibrium mixture (in mol/L) is 5.8 M.

Given that the concentration of H2O (g) is [H2O] = 0.500 M at 1000°C, and  the reaction is:

C(s) + H2O(g) ⇄ CO(g) + H2(g) KC = 0.2 at 1000°C

We need to determine the concentration of CO in an equilibrium mixture (in mol/L)

if a reaction mixture initially contains only reactants.

We can solve this problem using the ICE table method as follows:

Let x be the change in concentration of H2O (g) and CO (g) when they reach equilibrium.

Then the equilibrium concentrations of CO (g) and H2 (g) are equal to x. Hence, the equilibrium concentration of H2O (g) is (0.500 - x) M. Substitute these values in the expression for Kc and solve for x.

Kc = [CO (g)] [H2 (g)] / [H2O (g)] [C (s)]

= 0.2[CO (g)] = Kc [H2O (g)] [C (s)] / [H2 (g)]

= 0.2 × (0.500 - x) / x

We can simplify this expression by cross-multiplication to get:

5x = 0.1 - 0.2xx = 0.02 M

Substituting x = 0.02 M in the expression for [CO (g)], we get:

[CO (g)] = 0.2 × (0.500 - 0.02) / 0.02 = 5.8 M (approx.)

Therefore, the concentration of CO (g) in an equilibrium mixture (in mol/L) is 5.8 M.                                                                                               The problem requires us to find the equilibrium concentration of CO (g) in a mixture that initially contains only reactants.

To solve this problem, we need to use the expression for the equilibrium constant Kc, which is given by:

Kc = [CO (g)] [H2 (g)] / [H2O (g)] [C (s)]

We can also use the ICE table method to solve this problem. In this method, we start with the initial concentration of the reactants and calculate the change in concentration of each species as they reach equilibrium.

We then use the equilibrium concentrations to calculate the value of Kc and solve for the unknowns. Here is how we can set up the ICE table for this problem: Reaction:

C(s) + H2O(g) ⇄ CO(g) + H2(g)

Initial: [C] = [H2]

= 0 M,

[H2O] = 0.500 M

Equilibrium: [C] = [H2] = x,

[H2O] = 0.500 - x,

[CO] = [H2] = x

Change: +x +x -x -x

Substituting the equilibrium concentrations into the expression for Kc, we get:

Kc = [CO] [H2] / [H2O] [C]

= x² / (0.500 - x)

= 0.2

Solving for x, we get: x = 0.020 M

Substituting this value of x into the expression for [CO], we get:

[CO] = x = 0.020 M

Therefore, the concentration of CO (g) in the equilibrium mixture is 0.020 M.

In other words, only a small amount of CO (g) is produced in this reaction at 1000°C. T 0.020 M.

The concentration of CO in an equilibrium mixture (in mol/L) is 5.8 M.

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Answer:

Gravitational potential energy depends on an object's weight and its height above the ground (GPE = weight x height).Explanation: