A gas is confined to a steel tank with a fixed volume . At 293 K, the gas exerts a pressure of 8.53 atm. After heating the tank , the pressure of the gas increases to 10.4 atm. What is the temperature of the heated gas?

Answer:   Hello!

False

Explanation:

hope you do good!they are in ur food though

Answer:

false

Explanation:

they're in food but doesnt make them food

A pile of laundry would have the highest entropy among the given options because it can have many configurations and does not display particular order, making its state more disordered. A building made of bricks has smaller entropy than a pile of bricks because it has fewer arrangements (microstates) that maintain its orderly structure (macrostate).

The concept of entropy is associated with the idea of disorder in a system, with a system having high entropy being in a more disordered state. When comparing the options given (a stack of books, a house of cards, a house made of blocks, and a pile of laundry), the pile of laundry would have the highest entropy. This is because it can be arranged in a considerable number of configurations, as it does not display any particular order. In contrast, a stack of books, a house of cards, and a house made of blocks are all structured arrangements with lower entropy due to fewer configurations being available to them.

Explaining why a building made of bricks has smaller entropy than the same bricks in a disorganized pile: an organized structure, like a building made of bricks, has only a limited number of ways it can be put together (microstates) to maintain its orderly structure (macrostate), thereby representing a state of low entropy. On the other hand, a disorganized pile of bricks can be arranged in a vast number of ways, leading to a higher count of microstates and therefore, a higher entropy.

Final answer:

The highest entropy would be associated with a pile of laundry.

Explanation:

The concept of entropy in physics relates to the degree of disorder or randomness in a system. In this context, entropy is a measure of the number of ways a particular macrostate (arrangement or configuration) can be achieved by the microstates (individual arrangements of the system's elements).

Out of the given options, the highest entropy would be associated with a pile of laundry (option D). This is because laundry in a pile has a high degree of randomness and can be arranged in numerous ways, resulting in a large number of microstates. On the other hand, the stack of books (option A), house of cards (option B), and house made of blocks (option C) have lower entropy because they have a more ordered and structured arrangement, limiting the number of achievable microstates.

Answer: C2HNO3

Explanation: C = 27.59/12.011 = 2.297

H = 1.15/1.008 = 1.1409

N = 16.09/14.007 = 1.1487

O = 55.17/15.999 = 3.4483

Divide by smallest result:

C = 2

H=1

N=1

O = 3

Empirical formula = C2HNO3

To determine the empirical formula for a compound with percent composition values for carbon, hydrogen, nitrogen, and oxygen, convert the masses to moles, divide by the smallest number of moles among the elements, and simplify the ratios to get the empirical formula, which is CHNO₃ for this example.

To calculate the empirical formula of a compound based on its percent composition, we start by assuming we have 100 grams of the compound. This means that the given percent compositions can be directly converted into grams. With the compound containing 27.59% carbon (C), 1.15% hydrogen (H), 16.09% nitrogen (N), and 55.17% oxygen (O), we have 27.59 g of C, 1.15 g of H, 16.09 g of N, and 55.17 g of O.

Next, we convert these masses to moles using the molar masses of the elements:

C: 27.59 g / 12.01 g/mol = 2.298 moles

H: 1.15 g / 1.008 g/mol = 1.141 moles

N: 16.09 g / 14.01 g/mol = 1.148 moles

O: 55.17 g / 16.00 g/mol = 3.448 moles

Afterward, we divide the moles of each element by the smallest number of moles we have obtained:

C: 2.298 moles / 1.141 = 2.015 (approx. 2)

H: 1.141 moles / 1.141 = 1

N: 1.148 moles / 1.141 = 1.006 (approx. 1)

O: 3.448 moles / 1.141 = 3.023 (approx. 3)

Therefore, the empirical formula of the compound is CHNO₃.

Answer:

36kj/mol

Explanation:

Answer:

nitric acid

Explanation:

Answer:Well, if you mean atoms, it has 2 Hydrogen atoms and 1 Oxygen.

Explanation:Water is H20 therefore, it has 2 Hydrogen atoms and 1 Oxygen. Water isn't made up of particles, they are made of atoms.

Answer:

A

Explanation:

This picture represents a stationary front. Stationary fronts often form clouds and, in particularly low pressure, have rain or snow. Therefore, the first answer choice is correct. Hope this helps!

Answer:

-2

Explanation:

eACH ELEMENT HAS AN SPECIFIC VALENCE, FOR EXAMPLE, CARBON (+2),+4 IN THE CASE OF OXYGEN IS -2

Answer:

hunit

Explanation:

5

Answer:

0.0648 mols

Explanation:

Answer: i think that it was 800 mg

Explanation:

Answer:

The answer above is correct - the right option is A.

Explanation:

Hope this helped confirm!

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Charles' gas law is used here. Therefore the new pressure of  the given gas is 5.63 atm.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Vanderwaal gas acts as ideal gas at low pressure and high temperature. There is no forces of attraction between the particles of an ideal gas.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of gas

V= volume of gas

n =number of moles of gas

T =temperature of gas

R = Gas constant = 0.0821 L.atm/K.mol

At constant volume

P₁/T₁ = P₂/T₂

32.0 psi ÷298 K =P2÷348 K

P2 = 7.55÷1.34 = 5.63 atm

Therefore the new pressure of the given gas is  5.63 atm.

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Answer:

The number of moles of B that will completely react with;

8 moles of A is 12 moles of B

9 moles of A is 13.5 moles of B

3 moles of A is 4.5 moles of B

10 moles of A is 15 moles of B

Explanation:

From the reaction, we have the mole ratio of the reactants is 2 moles of A combines with 3 moles of B to form 3 moles of C

Therefore, one mole of A which is 2 moles/2 will combine with 3/2 moles of B

Hence 8 moles of A will combine with 8×3/2 or 12 moles of B

9 moles of A will combine with 9×3/2 or 13.5 moles of B

3 moles of A will combine with 3×3/2 or 4.5 moles of B

10 moles of A will combine with 10×3/2 or 15 moles of B

The number of moles of B reacted in each case is obtained by stoichiometry.

The representation of a chemical process on paper is known as a chemical reaction equation. It must consist of a reactant side and a product side. The reactants combine to yield the product.

Given the reaction; 2A + 3B → 3C, we can see that the mole ratio of the reactants is 2 : 3. Hence;

2 moles of A reacts with 3 moles of B

8 moles of A reacts with  8 moles × 3 moles/2 moles

= 12 moles B

2 moles of A reacts with 3 moles of B

9 mol of A reacts with 9 mol × 3 moles/2 moles

= 13.5 moles of B

2 moles of A reacts with 3 moles of B

3 mol of A reacts with  3 mol × 3 moles/2 moles

= 4.5 moles of B

2 moles of A reacts with 3 moles of B

10 mol of A reacts with 10 mol × 3 moles/2 moles

= 15 moles of B

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Answer: Static electricity will help in seed dispersal in cone bearing seeds.

Explanation:

Static electricity is the stationary electric charge produced by the friction. The static electricity can be produced by the turbulence or air currents in the storm clouds. This is responsible for the cause of lightening phenomena.

The cone bearing seeds exhibit cones that are hard and woody in nature.  The static electricity due to the effect of lightening generate electrical shock which breaks open the cone and disperse the seeds. Thus the static electricity is important for seed dispersal in cone bearing trees.

Answer:

A) 29.9g

Explanation:

first find the weight of 1 staple.

then multiply with 225

Answer: A

Explanation: 1.33/10 = .133

.133* 225 = 29.925 which is about 29.9 grams

Explanation: because of the waste and junk put into the ocean that must of backfired to the land and the wind would blow stuff at the area hope this helped because I'm not 100% certain

Answer:

The earthquake produced a tsunami that caused the destruction.

Explanation:

The earthquake produced a tsunami that caused the destruction.

Answer:

a- NaCl + H20

Answer:

The answer is

B.how many grams of solute are dissolved in a given volume of solution.

Explanation:

Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution

M=n/v

M-molar concentration

N-moles of solute

v-liters of solution

To find the molar concentration of a solution, simply divide the total moles of solute by the total volume of the solution in liters.

Molar concentration is the same as molarity, but molarity and molality are not the same thing. They are different ways to quantify the amount of solute in a solution, and the concentration of a solution in molarity is not interchangeable with its concentration in molality.

Source- Khan Academy, Wikipedia

Answer:

Humus

Explanation:

D

Humus gives the soil its high fertility. Therefore, the correct option is option D among all the given options.

The living, porous media that has grown in the top layer of the Earth's crust is known as soil. As a source of nutrients and water, a filter for harmful wastes, a site for their breakdown, and a participant for the cycle of carbon and various other elements throughout the planet's ecosystem, soil is one of the main substrates of life on Earth.

It has changed as a result of weathering processes influenced by geographical, geologic, biological, and climatic factors. A practical understanding of soils as well as their management has also developed out of need since the development of crops and forests in the eighth millennium BCE. Humus gives the soil its high fertility.

Therefore, the correct option is option D.

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Final answer:

Rebecca Flowers likely experienced excitement and validation upon finding new evidence about the Grand Canyon, as indicated by the rich detail and awe of Moran's paintings and the significant breakthroughs detailed in Powell's sketches.

Explanation:

Rebecca Flowers may have felt a mixture of excitement and validation when she found new evidence about the Grand Canyon. When researchers discover something new, like evidence that challenges existing theories or contributes significantly to our understanding of a subject, it is often accompanied by a profound sense of achievement.

An example from the text that supports the feelings of accomplishment and exhilaration is in the description of the landscape in Moran's painting: “The Grand Canyon of the Colorado River is another of Moran's works to illustrate the immeasurable spaces in the American West.”

The rich detail and awe-inspiring portrayal of the Grand Canyon also reflect the deep impact and vast significance of such discoveries.

Additionally, John Wesley Powell's identification of the "Great Unconformity" in the Grand Canyon signifies a moment of breakthrough, akin to how Rebecca Flowers might have felt.

The detailed sketches Powell made and his method of labeling serve as a reminder of the diligence and meticulous work required in research, which when leading to a significant find, could provide researchers with a profound sense of satisfaction and triumph.

Final answer:

Rebecca Flowers might have felt excited and curious when she found new evidence about the Grand Canyon, mirroring feelings shared by researchers upon making novel discoveries.

Explanation:

Rebecca Flowers likely felt a mixture of excitement, curiosity, and possibly apprehension when she discovered new evidence about the Grand Canyon. It's common for researchers to experience a thrill upon uncovering something novel that could potentially shift current understanding. An analogous situation from text might be reflected in the phrase, "When one is confronted by new information that does not fit tidily onto her personal map..." which suggests a sense of disorientation yet an opportunity to expand one's knowledge horizon.

In literature that discusses scholarly discoveries or studies, phrases such as "new evidence" and the process of incorporating this information into existing knowledge frameworks can be particularly challenging but rewarding. Another example would be a researcher using a "comparison-and contrast reasoning strategy" to identify a new species, revealing the thrill of scientific pursuit and the meticulous nature of academic investigation.

Answer:

Cells that contain half of the number of chromosomes present in the parent cell.

Explanation:

Meiosis is a type of cell division necessary for sexual reproduction. Meiosis produces four cells that contain half of the number of chromosomes present in the parent cell.

Final answer:

Meiosis produces four haploid daughter cells with half the number of chromosomes as the parent cell, which, in humans, results in cells with 23 chromosomes.

Explanation:

The process of meiosis results in the production of gametes, which are sex cells like eggs and sperm. During this intricate process of cell division, DNA is copied once, and then the cell divides twice, ultimately producing four daughter cells that each contain half the number of chromosomes as the original parent cell. In humans, for instance, where the parent cell contains 46 chromosomes, meiosis results in daughter cells with only 23 chromosomes.

These cells are termed haploid, compared to the diploid state of the original parent cell, which contains two sets of chromosomes. As a result, the correct answer to the student's question is option (d): Cells that contain half of the number of chromosomes present in the parent cell.

Answer:

4 moles

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

Answer: A chemical reaction is a process in which some substances change into different substances. Substances that start a chemical reaction are called reactants. Substances that are produced in the reaction are called products. Reactants and products can be elements or compounds.

The primary difference between an amoeba and a plant is that the amoeba is unicellular, meaning it consists of a single cell, whereas a plant is multicellular and has many cells that form tissues and organs. Option B is correct.

The main difference between an amoeba and a plant is how they obtain their nutrients. The choice from the provided question options that correctly identifies the primary difference is: The amoeba contains only one cell.

An amoeba is a type of unicellular organism which means it consists of a single cell, while a plant is multicellular and consists of many cells that are organized into tissues and organs. Amoebas consume their food by engulfing it through a process called endocytosis, using the food as a material source and an energy source.

In contrast, plants produce their own food through a process called photosynthesis, using sunlight to convert carbon dioxide and water into sugars and oxygen. Photosynthesis mainly occurs in the leaves of plants where cells contain chloroplasts, which are specialized organelles for this process.

Answer:

From primary consumer to secondary consumer; that is the answer!

Answer: "From primary consumer to secondary consumer"

Explanation:

I took the test (good luck)

In this chemistry question, the volume of KOH required to reach the equivalence point in this titration is 8.57 mL. This was calculated by first determining the moles of HNO3 in the solution and then using this to determine the equivalent volume of KOH.

In a titration, the volume of one solution required to neutralize another can be calculated using the concept of equivalence points and moles. Since the reaction between HNO3 and KOH is a 1:1 reaction, we can first calculate the moles of HNO3 in the solution: 0.120 mol/L * 0.060 L = 0.0072 mol. In a 1:1 reaction, equal moles of both reactants are required, so the amount of KOH needed is also 0.0072 mol. The concentration of KOH is given as 0.840 M, so we can calculate the volume (V) needed using the formula V = Moles/Concentration. Hence, the volume of KOH needed is 0.0072 mol / 0.840 mol/L = 0.00857 L or 8.57 mL.

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To find the volume of KOH required to reach the equivalence point in a titration with HNO₃, we use the molarities and volumes given, and apply the stoichiometry of the balanced equation, which in this case is a 1:1 molar ratio. The required volume of KOH is calculated to be 8.571 mL.

The question asks to calculate the volume of KOH required to reach the equivalence point in a titration with HNO₃. The balanced chemical equation for the reaction is:

HNO₃ (aq) + KOH (aq) → KNO₃ (aq) + H2O (l)

At the equivalence point, the moles of HNO₃ will be equal to the moles of KOH due to the 1:1 molar ratio of their reaction:

Moles of HNO₃ = 0.060 L × 0.120 M = 0.0072 mol

Using the molarity of KOH, we can find the volume needed:

Volume of KOH = Moles of HNO₃ / Molarity of KOH = 0.0072 mol / 0.840 M = 0.008571 L or 8.571 mL

Therefore, 8.571 mL of 0.840 M KOH is required to reach the equivalence point when titrating 60.0 mL of 0.120 M HNO₃.

Answer:

This is to make sure that the experiment is precise as outside disturbance could cause false outcome