assuming ideal behavior, which of these gas samples has the greatest volume at stp? 1g of kr, 1g of ne, 1g of o2

Answer:

C. Plasma

Explanation:

Plasma is a state of matter that is similar to gas, but typically at a higher temperature. The primary difference between a plasma and a gas is that plasma is a mixture of electrons and positively charged gas ions. The electrons come from collisions between the gas particles; the collisions are so strong that they cause electrons to break free of the gas particles.

Most lighted signs have some kind of gas inside of them, such as neon. These signs are connected to an electrical plug or a battery. When the sign is switched to "on," an electrical current will move through the gas, causing it to become plasma.

Answer: This is the process of chemical change. Examples of chemical properties are flammability (a material's ability to burn in the presence of oxygen) and reactivity (how easily a material combines chemically with other materials).

Explanation: Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. ... Flammability is the ability of matter to burn. Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. ... Special details which do not change in a substance without new substances being formed are called physical properties.

Answer:

chemical property

Explanation:

The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.

The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):

E = V * Q

Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):

Q = E / V

Substituting the given values, we have:

Q = 64 MJ / 330 V

To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:

Q = (64 * 10^6 J) / 330 V

Calculating the division:

Q ≈ 193,939.39 Coulombs

Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.

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More reactants have more atoms to react to form more products.

Answer:

Hypothesis is a statement of expectation or prediction that will be tested by research

Sucralose is a chemical derivative of sucrose among the given artificial sweeteners. It is created through a process that substitutes three hydroxyl groups with chlorine atoms.

Making it much sweeter than regular sugar while maintaining a similar taste profile. Sucralose is derived from sucrose, commonly known as table sugar. In the process of creating sucralose, three hydroxyl groups of sucrose are replaced with chlorine atoms. This modification alters the chemical structure of sucrose, resulting in a compound that is approximately 600 times sweeter than sugar. Despite its intense sweetness, sucralose does not contribute calories or affect blood sugar levels, making it a popular choice as an artificial sweetener in various food and beverage products.

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Answer:

No it does not need to be correct to be a success. It would just need to be reasonable and possible for you to do so that you dont hypothesize that animals are actually human because that is unlogical and impossible

Explanation:

Answer:

No, of course not.

Explanation:

The goal of a hypothesis is for the researchers to determine whether or not they accurately guessed what would happen in their experiment. The fact that the hypothesis was right or wrong has no effect other than if the researchers had a correct educated guess.  

Answer:

omg

Explanation:

omg omg omg omg omg omg omg omg omg omg I can't either ehhhhhh

Therefore, the net ionic equation for the reaction is Copper(2+) (aq) + 2 chlorine- (aq) → Copper(II) chloride (aq).

Ammonium sulphate and Copper hydroxide precipitate are the first products of the reaction between copper sulphate and ammonium hydroxide.

Mixing copper(II) sulphate and ammonium chloride results in the following observations:

Conventional: When copper ions (Copper2+) from Copper(II) sulfate are present, a blue solution develops. The colour of Ammonium Chloride doesn't seem to have changed at all.

Ionic total: While Ammonium Chloride dissociates into Ammonium and Chlorine- ions in solution, Copper(II) sulfate dissociates into Copper2+ and Sulfate 2- ions.

Copper(II) sulfate (aq) + 2 Ammonium Chloride (aq) → Copper(II) Chloride (aq) + 2 Ammonium (aq) + Sulfate 2- (aq)

Net Ionic: The net ionic equation shows only the species involved in the reaction. In this case, the Copper2+ and the Cl- ions combine to form Copper(II) chloride.

Copper2+ (aq) + 2 Chlorine- (aq) → Copper(II) chloride (aq)

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The limitations of litmus paper and phenolphthalein indicators include their narrow pH range and lack of specificity. Litmus paper can only indicate whether a substance is acidic or basic, while phenolphthalein has a limited pH range of 8.2 to 10.0.

Two other indicators that can be used without these limitations are:
1. Universal indicator: This indicator is a mixture of several indicators that provides a full range of colors across the pH scale. It can accurately determine the pH value of a solution within a wide range of acidity or basicity.

2. Bromothymol blue: This indicator can be used to determine the pH of a solution within a range of 6.0 to 7.6. It changes color from yellow in acidic solutions to blue in basic solutions.
These indicators offer more precise and specific results compared to litmus paper and phenolphthalein. They provide a wider range of pH detection and can indicate the exact pH value of a solution.

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The types of non-covalent interactions that stabilize the tertiary structure of proteins are:
- Hydrogen bonds
- Ionic bonds
- Hydrophobic interactions

These interactions play a crucial role in maintaining the tertiary structure of proteins.

Hydrogen bonds are formed between the electronegative atoms of one amino acid and the hydrogen atoms of another amino acid.

Ionic bonds are formed between the positively charged and negatively charged amino acids.

Hydrophobic interactions occur between the nonpolar amino acids, which tend to cluster together in the interior of the protein to avoid contact with water.

All of these interactions work together to stabilize the tertiary structure of proteins.

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A chemical formula is a group of chemical symbols and numbers that express the elements and the number of atoms of each element that compose a compound.

A chemical formula of a compound offers information about the proportions of each chemical element in a given chemical compound or molecule.

The chemical formula of a compound can be written by including the chemical symbols of elements, numbers as subscripts, and symbols, such as plus (+) and minus (−) signs, dashes, commas, and brackets.

A chemical formula exhibits no words but simple chemical structures can be drawn but not full structures. Chemical formulae must be limited in power rather than chemical structural formulae.

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Answer:

D. The particles are considered to have negligible volume.

Explanation:

According to the Kinetic Molecular Theory for ideal gases

- Gases are composed of larges molecules which are in constant random motion in a straight line

- The volume of the gas particles is negligible compared to the total volume in which the gas is contained.

- The attractive and repulsive forces between gas molecules is insignificant ie There are no interactive forces.

- The collisions of the particles  are perfectly elastic and energy is being transferred between the particles but the total energy remaining constant

Answer:

The number "1.25" is already at a number that shouldn't be determined using scientific notation. Do you want 1.25ml----> liters ? If so, here

Explanation:

1.25 × \(10^{-3}\)

is the amount of liters

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On the periodic table, argon has an average atomic weight of 39.948 amu. This number is really near 40. This suggests that Ar-40 is the isotope of argon (Ar) that is most prevalent in the natural world.

If all three argon atoms are neutral, they would each contain 18 protons and 18 electrons. In comparison to one another, the three isotopes will each have a distinct number of neutrons (18, 20, and 22 neutrons respectively).

Atomic number, not atomic mass, is used to categorise the elements. As the atomic number of argon (18) is less than that of potassium (19)

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Answer:

true

Explanation:

Answer:

false

Explanation:

i took the test and got it right

The changing of states can be explained by the Kinetic Theory of Matter, which states that matter is made up of particles that are constantly in motion and that the motion and energy of these particles determine the state of matter.

When a solid melts into a liquid, the motion and energy of the particles increase because they are now able to move more freely.

The Kinetic Theory of Matter explains that solids have a fixed shape and volume because the particles are closely packed and vibrate in place, while liquids have a fixed volume but take the shape of their container because the particles are more spread out and can slide past each other, and gases have neither a fixed shape nor volume because the particles are far apart and move freely in all directions. This difference in particle arrangement and motion leads to the differences in density between solids, liquids, and gases.

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The fraction of chromium in cr(h2o)w21(oh)21 is 0.000185.

Regardless of how strong or weak an acid is, it dissociates into water in a similar way.

H+ A -> H A-.

Its dissociation constant value is influenced by the acid's Ka value, which is defined as the acid's dissociation constant. If Ka is higher, the acid is more acidic, and vice versa if pKa is higher, the acid is more acidic.

More pKa is equal to -log(Ka), so if Ka is 10 then pKa is -1, and if Ka is 1000 then pKa is -3, meaning that the less acidic the solution is, the more pKa there is.

Consider that I had an acid with a C initial concentration. If a certain amount of A dissociates upon equilibrium, I obtain the equilibrium concentration of the acid as C-A and the equilibrium concentration of both H and the conjugate (Ac-) as A. because their stoichiometric coefficients are nearly equal for both.

You can write the Ka expression as follows using this information.

Ka is equal to [H] [Ac-] / [HAc].

A * A / C-A results from substitution.

Fraction of chromium= Ph/Pk

=0.010/53.80=0.000185.

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Answer: d. energy must transfer to the carbon dioxide from its surroundings.

Explanation:

Sublimation is the phase change from a solid to a gas, meaning that the particles will have more kinetic energy (since particles in the solid phase are more ordered than particles in the gas phase, and thus particles in the gas phase have more energy). Thus, for sublimation to occur, the particles need more energy, which must come from its surroundings.

Answer:

d. All of the above

Explanation:

Put a 2 in front of H2O to balance the hydrogen atoms: CH4 + O2 CO2 + 2H2O. The oxygen atoms can be balanced by adding a 2 before the O2 on the left: CH4 + 2O2 CO2 + 2H2O.

Methane (CH4) combines with oxygen to produce carbon dioxide and water. This kind of combustion reaction is taking place. When a substance combines with oxygen molecules, it is called a combustion reaction. The balanced equation is 2CO+O22CO2. The equation is now in equilibrium.In a combustion reaction, a hydrocarbon (a substance containing carbon, hydrogen, and perhaps oxygen) always interacts with oxygen to produce carbon dioxide and water.

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If the reference caffeine solution were made by dissolving caffeine in dichloromethane rather than water, it would affect the solubility of caffeine and its properties

Caffeine is an alkaloid and is soluble in polar solvents such as water but not in non-polar solvents like dichloromethane. In this case, caffeine would not dissolve completely in dichloromethane and would have a different solubility rate compared to water. Additionally, the properties of caffeine would change since dichloromethane is a non-polar solvent. Caffeine dissolved in dichloromethane would have different chemical properties and reactions, compared to caffeine dissolved in water.

Caffeine is widely used as a reference standard for analytical chemistry and pharmaceutical purposes. Therefore, the preparation of reference caffeine solution is critical, and its properties should be maintained to avoid any errors or discrepancies in experiments. In conclusion, dissolving caffeine in dichloromethane instead of water would affect the solubility and properties of caffeine. It is essential to prepare the reference caffeine solution correctly to maintain its properties and ensure accurate experimental results.

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Answer:

A bottle that is sealed would have the highest concentration.

Explanation:

When you put a gas into a container, the concentration or the amount of mol inside the bottle would be highly concentrated. If you open the bottle, the CO2 would spread outwards and leave the bottle giving more room between each molecule. The longer you open the bottle, the less concentrated the gas will be.

Series circuits are mainly used in home appliances. They are also used batteries of some electrical devices other than in holiday lights.

In a series circuits, the electrical components are connected in a series thus in a back to back connection. For example the light bulbs where the second leg of the first bulb is is connected to the first leg of the second bulb and so on.

Resistors are used here to control the current flow and they are also connected in a series fashion. The sum of voltage drops for all the components will be equal to the source voltage. Here we can apply the Ohm's law.

Ohm's law states that the voltage is the product of current and resistance.  Series circuit is also used in batteries and in other households such as in refrigerators.

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Explanation:

just trying...hope that helps

Answer:

the answer must have to be A

Yes, geothermal will be a good energy source to power the production of hydrogen fuel.

Geothermal energy is the type of heat energy generated by the Earth. It is a type of renewable energy. Geothermal heat is generated naturally beneath Earth's surface. It is estimated that up to 70% of geothermal resources have yet to be discovered.

Geothermal energy can be used to assist the electrolysis of hydrogen by the use of steam turbine electricity generation and high-temperature electrolysis or by solid-state methods capable of using much lower temperature resources. For the use of metal hydrides, geothermal energy can be used to assist the storage management.

Also by using hydrides, heat energy can be transported considerable distances as hydrogen gas for heating and cooling purposes. Many communities in the world could benefit from linking their geothermal resources to the development of a hydrogen energy economy.

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Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl

To calculate the concentration of NaCl in the resulting solution in mg/L NaCl, we can use the formula; Concentration (mg/L) = (Mass of solute ÷ Volume of solution in L) × 1000 g / 1 mg NaCl is present in the stock solution of 25 mL. So, the mass of NaCl in the solution would be;0.0842 g ÷ 25 mL = 0.00337 g/mL. Now, in the resulting solution, a 1.00 mL aliquot of the stock solution is transferred to a 50.00 mL volumetric flask and diluted to volume. Therefore, the volume of the resulting solution is 50.00 mL. We will substitute these values in the formula, Concentration (mg/L) = (0.00337 g/mL ÷ 50 mL) × 1000 g / 1 mg concentration (mg/L) = 67.4 mg/L. Therefore, the concentration of NaCl in the resulting solution in mg/L NaCl is 67.4 mg/L.7.  Concentration = 67.4 mg/LTolerance = 4.28 mg/LTotal concentration = 67.4 + 4.28 mg/L = 71.68 mg/LWe round off this value to one decimal place; Total concentration = 71.7 mg/LTherefore, the concentration of NaCl in the resulting solution using propagation of error through the calculation is 67.4+0.4 mg/L.8. Two possible sources of random (indeterminate) error in the experiment are; Errors in temperature measurement. Errors in measurement of water volume. Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl.

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Answer:

Small streams that flow into larger streams and wetlands

Explanation:

Hope this helps, have a great day (;

Answer:

D

Explanation:

verifyed got me the answer!

The conversion of ethanol to acetaldehyde (propanal) by NAD+ in the presence of alcohol dehydrogenase can be expressed as the difference of two half-reactions.

One half-reaction involves the oxidation of ethanol to acetaldehyde, while the other half-reaction involves the reduction of NAD+ to NADH. The corresponding reaction quotients can be calculated for each half-reaction, as well as for the overall reaction.

Explanation:

The half-reactions can be written as follows:

Oxidation of ethanol:

CH3CH2OH + NAD+ -> CH3CHO + NADH + H+

Reduction of NAD+:

NAD+ + 2H+ + 2e- -> NADH

To calculate the reaction quotients for each half-reaction, we need to consider the concentrations of the reactants and products. The reaction quotient for a given half-reaction is the ratio of the product concentrations to the reactant concentrations, raised to the power of their stoichiometric coefficients.

For the oxidation of ethanol half-reaction, the reaction quotient can be written as:

Q1 = [CH3CHO][NADH][H+] / [CH3CH2OH][NAD+]

For the reduction of NAD+ half-reaction, the reaction quotient can be written as:

Q2 = [NADH] / [NAD+][H+]^2

The overall reaction quotient (Q) for the complete reaction is calculated by taking the ratio of the product concentrations to the reactant concentrations, raised to the power of their respective stoichiometric coefficients. In this case, since the two half-reactions are subtracted, the reaction quotient is given by:

Q = Q1 / Q2

The reaction quotients provide a measure of the relative concentrations of the species involved in the reactions and can be used to determine the direction and extent of the reaction.

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