What is the effect of the following on the volume of 1 mol of an ideal gas?
(b) The absolute temperature is increased by a factor of 3.0 (at constant P).

Answer:

John Dalton

John Dalton, an English chemist and meteorologist, is credited with the first modern atomic theory based on his experiments with atmospheric gases.

Answer:

B. 1 parent cell - 2 genetically identical offspring cells

Explanation:

Asexual cell reproduction occurs through binary fission. Binary fission occurs when 'parent' cell splits into 2 genetically identical 'daughter' cells.

Answer:

B

Explanation:

1 parent cell - 2 genetically identical offspring cells

this is a strong base and is one of the many bases that you're required to memorize.

The elements X and Y are in the same column on the periodic table, which means they have the same number of valence electrons.

Ionization energy refers to the amount of energy required to remove an electron from an atom. As we move down a group in the periodic table, ionization energy generally decreases because the valence electrons are farther from the nucleus and experience less attraction.

In this case, element Y has a higher atomic number, which means it has more protons in its nucleus than X. This means that there is a stronger attraction between the valence electrons and the nucleus in Y compared to X. Therefore, it would require more energy to remove an electron from Y, making it have a higher ionization energy than X. So, the correct option is "y because it contains more protons so there is a stronger attraction between the valence electrons and the nucleus."

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The loss of biological nitrogen fixation over a five-year period would have significant ecological and agricultural consequences, directly impacting ecosystems, food production, and potentially exacerbating environmental issues such as carbon dioxide emissions.

The consequences of the decrease in biological nitrogen fixation due to the spread of the bacteriophage over a period of five years would be significant. Here are the potential impacts and consequences:

1. Impact on Ecosystems: Nitrogen fixation plays a vital role in the nitrogen cycle, where nitrogen gas from the atmosphere is converted into a usable form by nitrogen-fixing bacteria. This fixed nitrogen is essential for the growth of plants and other organisms. With the death of nitrogen-fixing bacteria, there would be a reduction in the availability of fixed nitrogen in ecosystems. This could lead to nitrogen deficiency, limiting plant growth and overall productivity in various ecosystems.

2. Impact on Food Production: Nitrogen is a critical nutrient for plant growth and is often supplemented through nitrogen fixation. A decline in nitrogen fixation would result in decreased availability of nitrogen for crop plants, leading to reduced agricultural productivity. This could result in lower crop yields and potential food shortages, impacting food security for human populations.

3. Increased Reliance on Synthetic Fertilizers: With a decline in natural nitrogen fixation, there would be an increased reliance on synthetic fertilizers to meet the nitrogen requirements of crops. Synthetic fertilizers are manufactured using energy-intensive processes and can have negative environmental impacts, such as contributing to water pollution through runoff and greenhouse gas emissions during production. Increased usage of synthetic fertilizers would exacerbate these environmental issues.

4. Impact on Carbon Dioxide Emissions: Nitrogen fixation is closely linked to the cycling of carbon and nitrogen in ecosystems. Nitrogen availability affects the growth and productivity of plants, which in turn influences the uptake and storage of carbon dioxide through photosynthesis. A decrease in nitrogen fixation would potentially limit plant growth, leading to reduced carbon dioxide uptake by plants. This could contribute to increased atmospheric carbon dioxide levels and exacerbate climate change.

Overall, It is important to note that this scenario assumes a complete absence of biological nitrogen fixation, which is unlikely in reality due to the presence of non-targeted nitrogen-fixing bacteria and other mechanisms of nitrogen input in ecosystems.

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The earth’s magnetic poles are in the general direction of the planet’s geographic poles. the phrase "general direction" mean  different and complete opposite way.

A bar magnet that is suspended freely will always point north-south. This is a result of the bar magnet's south pole being drawn to the Earth's magnetic north pole (geographic south).

Geographic and magnetic poles on Earth are generated by various sources, thus they are not perfectly aligned. The outer core's swirling currents of liquid iron are what generate the Earth's magnetic field.

Thus, Option D is correct.

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The plot of the natural logarithm of the rate constant vs the inverse of temperature after the addition of catalase, the y-intercept would increase.

The catalase hydrogen peroxide reaction will be investigated, and the order of the reaction with regard to hydrogen peroxide will be determined. On Day 2, we will conduct a temperature study to find the energy of activation for the reaction from an Arrhenius plot, and we will utilise the order of the reaction found on Day 1 to compute the rate constant k. Following the reaction, we will monitor the pressure in a reaction tube using a low-cost computer interfaced gas pressure sensor, which will allow us to track the pressure increase within the closed off reaction tube.

The initial rate of the reaction is simply the highest slope of the curve formed by plotting the pressure of oxygen created versus time soon after the reaction starts. The pace should appear to rise at a reasonably steady rate over the first minute or so, giving the graph a linear look. The rate will be determined by determining the highest slope of this line, which should be a decent approximation of the original rate.

Doing a series of tests adjusting the quantity of hydrogen peroxide and determining the beginning rates for each of five reactions will identify the sequence of the reaction.

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Answer:

Deep cold water has a high density and warm, shallow water has a low density.

Explanation:

Because when it is cold, water shrinks together it acts as a factor for it to have a high density and it's deep which also acts as a factor because to deeper something is near the Earth's core the more pressure it has leads to high density as well because gravity is stronger near the Earth's core. When water is warm it has a low density which is the first factor and because it is shallow it is far from the earth's core it has a lower density and pressure.

Answer:

Bacteria has 1 cell and An Animal has multiple cells.

Explanation:

Bacteria is a cell its self. While An Animal, It has multiple cells that create multiple tissues, and those tissues create multiple organs, those organs make up an organ system. After the Organ System, it's an organism.

Organism = Animal, Human, Ect.

Meanwhile, Bacteria is made up ONE CELL (bacteria it's self is 1 cell)

So the answer is "Bacteria has 1 cell and An Animal has multiple cells."

I hope this helped!! <33

a. The contour or global rule in chemistry is a principle used to determine the stereochemistry of a molecule.

b. The contour rule is used in conjunction with other principles of stereochemistry to determine the overall shape of a molecule and the arrangement of its constituent atoms in space.

The contour rule or global rule states that the three-dimensional arrangement of atoms in a molecule can be determined by examining the sequence of atoms along the longest chain of carbon atoms, and the direction of the bond connecting each atom to its neighbor. If the sequence of atoms along the longest chain of carbon atoms is arranged in a clockwise direction, the molecule is said to have R-configuration (from the Latin word rectus, meaning right). If the sequence is arranged in a counterclockwise direction, the molecule is said to have S-configuration (from the Latin word sinister, meaning left).

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Answer:

yes it is a chemical change

i have made it in above picture

The oxidizing agent in the reaction Fe + \(AgNO_3\)→ \(Fe(NO_3)_3\) + Ag is option a \(AgNO_3.\)

A redox reaction is one in which the oxidation states of two species undergo changes. Iron is oxidized in the reaction, while silver nitrate is reduced. One of the reactants is being reduced, whereas the other is being oxidized.The oxidizing agent is the species that is being reduced, and it is the species that accepts electrons.

Fe is being oxidized in this reaction. Therefore, it cannot be the oxidizing agent, nor can\(Fe(NO_3)_3\). In contrast, \(AgNO_3.\)  is being reduced, which means it is accepting electrons. This is why\(AgNO_3.\)  is the oxidizing agent.The correct answer is  option a.

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The balanced chemical equation for the reaction between nitrogen (\(N_{2}\)) and hydrogen (\(H_{2}\)) to form ammonia (\(NH_{3}\)) is:

\(N_{2}\) + 3\(H_{2}\) -> 2\(NH_{3}\)

In the given mixture of six nitrogen molecules and six hydrogen molecules, we have an equal number of both reactants. According to the stoichiometry of the reaction, one molecule of \(N_{2}\) reacts with three molecules of \(H_{2}\) to produce two molecules of \(NH_{3}\).

Since we have six molecules of each reactant, we can determine that three molecules of \(N_{2}\) will react with nine molecules of \(H_{2}\), resulting in six molecules of \(NH_{3}\) as the final product.

Therefore, the final product mixture will consist of six \(NH_{3}\) molecules, three \(N_{2}\) molecules (which did not react), and three \(H_{2}\) molecules (which did not react).

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Answer:

Power lines produce a magnetic field

Explanation:

Power lines produce a type of magnet called an Electro-magnet which pulls metal magnetic objects towards it and the compass relies on magnetic feilds in order to point north.

Answer:

22×10⁻¹³

Explanation:

Scientific notation:

Scientific notation is the way to express the large value in short form.

The number in scientific notation have two parts.

The digits (decimal point will place after first digit)

× 10 ( the power which put the decimal point where it should be)

for example the number 6324.4 in scientific notation will be written as = 6.3244 × 10³

When we multiply or divide the values the number of significant figures must be equal to the less number of significant figures in given value.  Thus, in given value,

(4.1357× 10⁻¹⁵) × (5.4×10²)

22×10⁻¹³

Answer:

3 feet is in one yard, which is 36 inches.

Answer:

When aluminum is added to cold dilute hydrochloric acid, there is no reaction because aluminum is a highly reactive metal, but it is protected by a thin oxide layer on its surface. This oxide layer is not easily dissolved by dilute hydrochloric acid, so the aluminum does not react with the acid. In order to react with the acid, a stronger acid such as sulfuric acid or nitric acid is needed to dissolve the oxide layer. Additionally, a higher concentration of hydrochloric acid is also needed to react with aluminum.

Another possible reason is that Aluminium metal react with hydrochloric acid to produce hydrogen gas and aluminum chloride salt, but the reaction is relatively slow and requires heat to speed it up. In cold dilute hydrochloric acid, the reaction rate is too slow to observe any visible change.

Answer:

There is a leyer of aluminium that prevents nothing from happening

Explanation:

Keep in mind that this reaction will not take place as soon as you add the piece of aluminium to the hydrochloric acid solution. That happens because the piece of aluminium is protected by a layer of aluminium oxide, Al2O3 , the same layer that protects aluminium from reacting with water

Answer: The frequency is 7.047 Hz. It comes under ultraviolet radiation

Explanation:

We know that v = λ x f ................. (1)

where v ⇒ velocity of the wave

f ⇒ frequency of the wave

λ ⇒ wavelength of the wave

Since we know that the given wave is electromagnetic radiation,

v = 3 x 10⁸ m/s

λ = 4.257 x 10^-9 m (Given)

Substituting in (1), we get

f = v / λ

f = 3 x 10^8 / 4.257 x 10^-9

f = 7.047 x 10^16 Hz

Since the frequency is in the order of 16, the given radiation is ultraviolet radiation

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Answer:

Yes.

Explanation:

Wasting household water does not ultimately remove that water from the global water cycle, but it does remove it from the portion of the water cycle that is readily accessible and usable by humans. Also, "wasting" water wastes the energy and resources that were used to process and deliver the water.

Answer:

I feel like there should be more parts to this question but I think it depends on how you got your water. If you waste water after you got it from a local stream yourself, you wasted your body energy but no real electricity of any kind. If the water is processed and filtered and you end up wasting it, I guess it counts as energy being wasted too? Because the sole purpose was to bring you clean water but you didn't utilize it

The reasonable approach during analytic procedures of audit is identifying reasonable assurance for unexpected differences before talking to client management

Audit is an external help identifying areas where books or accounting practices are no longer in compliance with new Internal Revenue Service regulations.

       An external audit can also pinpoint where your compliance efforts may be lacking. Since an external auditor has no reason to be anything but honest about the status of your financial compliance, you can rely on the independence of the investigation and on the recommendations being made.

      Internal and external financial statements will carry more weight if they’ve been vetted by an external auditor. For family businesses, closely held corporations and non-profits, these audits provide common ground for stakeholders to properly assess the financial health of the organization.

       For publicly traded companies, external audits offer an unbiased glimpse into the accounting practices of the organization.

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Temporary and permanent hardness of water Temporary hardness of water is caused by the presence of bicarbonate, carbonate, and sulfate ions, while permanent hardness is caused by the presence of chlorides, sulfates, and nitrates.

Carbonate and bicarbonate hardness can be removed using a process called boiling. Permanent hardness, on the other hand, can be removed using a process called ion exchange.ii. Organic, ortho, and polyphosphorus in wastewaterOrganic phosphorus is present in wastewater in the form of organic molecules like DNA, RNA, and phospholipids. Orthophosphate is the most common form of phosphorus found in wastewater. Polyphosphates, which are a chain of orthophosphate molecules, can also be found in wastewater.iii. Self-cleansing and scouring velocity in sewersSelf-cleansing velocity is the minimum velocity of wastewater flow required to prevent the deposition of solids in the sewer. Scouring velocity, on the other hand, is the minimum velocity required to remove previously deposited solids. Scouring velocity is higher than self-cleansing velocity.

Type 1 and Type 2 settling in water/wastewater treatment  Type 1 settling occurs when particles of different sizes and densities settle separately, forming distinct layers. In type 2 settling, particles of different sizes and densities settle together in a mixed floc. Type 1 settling is more effective at removing larger particles, while type 2 settling is better at removing smaller particles.v. Chloramines and disinfection by-products (DBPs)Chloramines are a combination of chlorine and ammonia that are used as a disinfectant in water treatment. Disinfection by-products (DBPs) are formed when chlorine reacts with organic matter in the water. Some common DBPs include trihalomethanes (THMs) and haloacetic acids (HAAs), which are known to be carcinogenic.

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Answer: He provided a 3 time period where there families appeal to there conviction.

Answer:

Constant volcanic eruptions Hope this helps!

Answer:

roman numeral

Explanation:

A pure liquid has a constant boiling point because it is composed of only one type of molecule while a liquid with a constant boiling point may or may not be pure depending on the type and amount of molecules it contains.

A pure liquid refers to a liquid that contains only one type of molecule, while a liquid with a constant boiling point means that the temperature at which the liquid boils remains the same, even if the pressure changes.

Pure liquids have fixed boiling points that are equal to the liquid's vapor pressure. The vapor pressure is determined by the liquid's molecular structure and the temperature at which it is exposed. It is the pressure exerted by the gas molecules that are in equilibrium with the liquid surface.

As such, these molecules all have the same amount of energy, which means the liquid requires the same amount of energy to reach its boiling point. On the other hand, a liquid with a constant boiling point is not necessarily pure because it may be composed of a mixture of molecules with different boiling points. The molecules with the lowest boiling point will start to evaporate first, leading to a decrease in the overall boiling point of the mixture. The decrease in boiling point will be slower if the molecules in the mixture have a similar boiling point.

In conclusion, a pure liquid has a constant boiling point because all of its molecules have the same amount of energy, while a liquid with a constant boiling point may or may not be pure depending on the type and amount of molecules it contains.

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The maximum mass of phosphoric acid that can be formed is 32.06 grams. The formula for the limiting reactant is P2O5 + 3H2O → 2H3PO4. The mass of the excess reagent that remains after the reaction is complete is 4.44 grams of water.
To determine the maximum mass of phosphoric acid that can be formed, we need to first determine the limiting reactant. The limiting reactant is the reactant that is used up first in the reaction and determines how much product can be formed.
Using the formula for the reaction, we can determine the limiting reactant by comparing the amount of each reactant present to the amount required for the reaction.
For diphosphorus pentoxide:
26.0 grams / 141.94 grams/mol = 0.183 mol
For water:
14.6 grams / 18.02 grams/mol = 0.810 mol
Since the reaction requires 3 moles of water for every 1 mole of diphosphorus pentoxide, we can see that diphosphorus pentoxide is the limiting reactant.
To determine the maximum mass of phosphoric acid that can be formed, we can use the stoichiometry of the reaction:
0.183 mol P2O5 x (2 mol H3PO4 / 1 mol P2O5) x (98.00 grams/mol) = 32.06 grams H3PO4
To determine the mass of the excess reagent that remains after the reaction is complete, we can use the stoichiometry of the reaction and the amount of the limiting reactant:
0.183 mol P2O5 x (3 mol H2O / 1 mol P2O5) = 0.549 mol H2O
0.810 mol H2O - 0.549 mol H2O = 0.261 mol H2O
0.261 mol H2O x (18.02 grams/mol) = 4.44 grams H2O

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