which term best describes a unit of carbon dioxide?

Answer:

well a carbon dioxide mole is equal to 44.0095 and when you times that by  6 ( since theres 6 moles ), you get 264.057 ( rounded to 264), so i think B is right

Explanation:

( sorry if im wrong)

The mass of KClO₃ that was decomposed in the given reaction by the ideal gas equation is approximately 7.19 grams.

Given:

Pressure (P) = 0.964 atm

Volume (V) = 0.65 L

Temperature (T) = 22 °C = 22 + 273.15 = 295.15 K

The ideal gas law: PV = nRT

Where:

P = Pressure in atm

V = Volume in liters

n = Number of moles

R = Ideal gas constant = 0.0821 L·atm/(mol·K)

T = Temperature in Kelvin

n = (PV) / (RT)

n = (0.964 atm) × (0.65 L) / (0.0821 L·atm/(mol·K) × 295.15 K)

n ≈ 0.0294 mol

2 moles of KClO₃ produce 1 mole of O₂. Therefore, the number of moles of KClO₃decomposed would be:

Moles of KClO₃= 2 × 0.0294 mol

Moles of KClO₃≈ 0.0588 mol

Molar mass of KClO₃= 122.55 g/mol

Mass of KClO₃= Moles of KClO₃× Molar mass of KClO₃

Mass of KClO₃≈ 0.0588 mol × 122.55 g/mol

Mass of KClO₃≈ 7.19 grams

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Given:

Weight of Li2CO3 = 154 g

To find:

number of moles of Lithium Carbonate Li2CO3 = ?

Solution:

first we have to calculate the molar mass of Lithium Carbonate,

The elemental composition of Li2CO3

Li = 2 units, Atomic weight of each Li atom is 7 g/mol

Li = 2 × 7 = 14 g/mol

C = 1 unit, Atomic weight of Carbon is 12 g/mol

O = 3 units, Atomic weight of each O atom is 16 g/mol

O = 3 × 16 = 48 g/mol

Atomic weight of Li2CO3 = 14+12+48 = 72 g/mol

now,

\(number \: of \: moles = \: \frac{Given \: weight \: of \: substance}{Atomic \: weight \: of \: substance} \)

Number of moles = 154/72 = 2.14 moles

Answer- The number of moles of Lithium Carbonate is 2.14

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Answer:

its b alkyne

Explanation:

brinliest po plsss

Answer:

Alkyne so its b

Answer:

The produce large circular currents in all the ocean basins. Currents, The North Equatorial Current, the Gulf Stream, the North Atlantic Current, and the Canary Current.

Explanation:

Considering the definition of speed, it takes 1 hour to travel a distance of 44 misle.

Speed can be defined as the amount of space traveled per unit of time with which a body moves. That is, speed ​​is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.

The speed can be calculated using the expression:

speed= distance traveled÷ time

In this case, you know that:

Replacing in the definition of speed:

44 miles per hour= 44 miles÷ time

Solving:

44 miles per hour× time= 44 miles

time= 44 miles÷ 44 miles per hour

time= 1 h

In summary, it takes 1 hour to travel a distance of 44 miles.

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If you add 5 ml of 0.5 M NaOH solution to 20 ml each of buffer B (with a pH of 4.03) and buffer C, the buffer whose pH will change the least is buffer B.

What is a buffer?

A buffer is a solution that resists changes in pH when acid or alkali is added. A buffer solution is a solution that contains a weak acid and its corresponding weak base or a weak base and its corresponding weak acid.

The Henderson-Hasselbalch equation can be used to calculate the pH of a buffer solution before and after adding a strong base or acid.

The equation is pH = pKa + log ([A-]/[HA])

where:pKa is the dissociation constant for the acid[A-] is the conjugate base of the acid when a command (such as NaOH) is added to a buffer solution, the base reacts with the weak acid to form the conjugate base of the acid and water. The addition of the conjugate base of the acid causes the pH of the solution to rising.

When an acid (such as HCl) is added to a buffer solution, the acid reacts with the weak base to form the conjugate acid of the base and water. The addition of the conjugate acid of the base causes the pH of the solution to decrease. Based on the above equation, pH change will be minimum in Buffer B. Therefore, the buffer whose pH will change the least is buffer B.

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Answer: 0.45 moles of \(H_2O\) will be produced from 0.15 moles of propanol.

Explanation:

The balanced chemical reaction is:

\(2C_3H_6O+8O_2\rightarrow 6CO_2+6H_2O\)

\(C_3H_6O\) is the limiting reagent as it limits the formation of product and \(O_2\) is the excess reagent.

According to stoichiometry :

2 moles of \(C_3H_6O\)produces = 6 moles of \(H_2O\)

Thus 0.15 moles of \(V\) will produce=\(\frac{6}{2}\times 0.15=0.45moles\)  of \(H_2O\)

Thus 0.45 moles of \(H_2O\) will be produced from 0.15 moles of propanol.

Answer:

the action of magnifying something or the process of being magnified

Answer:

1 : the act of magnifying. 2a : the state of being magnified. b : the apparent enlargement of an object by an optical instrument. — called also power

Rogers believed that the environment may foster or restrict self-actualization. Maslow stresses that fundamental needs must be met before self-actualization (Maslow, 1943).

This is further explained below.

Generally, Carl Rogers and Abraham Maslow, both humanistic psychologists, focused on the possibility of development in persons who were otherwise healthy.

They were of the opinion that everyone's goal in life was to become more self-actualized.

Both Carl Rogers' and Abraham Maslow's ideas made significant contributions to our growing knowledge of the self.

In conclusion, In accordance with Rogers' theory, people are born with a self-actualizing potential that, depending on the circumstances of their lives, may either be fostered or stifled by their surroundings.

According to Maslow, in order for an individual to achieve self-actualization or fulfillment, they must first have some fundamental needs fulfilled (Maslow, 1943).

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CQ not found

When a wave moves through the air and comes into contact with an object, it hits its flat surface from a new angle, causing the wave to refract.

When waves cross the boundary between two different materials, their speed changes. For example, light waves refract when they pass through glass to air. Refraction is the effect that causes them to change direction as a result. When water waves move from deep water to shallow water (or the other way around), they refract light.

When waves bounce back from a surface they can't pass through, this is called reflection. When waves enter a new medium at an angle and begin traveling at a different speed, refraction occurs. Diffraction happens when waves spread out as they travel around impediments or through openings in obstructions.

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Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 45 × 1544

We have the final answer as

Hope this helps you

Answer:

69,480 kg. m/s

have a nice day!

Answer: combustion

Explanation:

Combustion reactions can be identified by looking at the reactants and the products.

Usually, the reactants will be a hydrocarbon and oxygen. And the products will be CO2 and H2O

For fermentation process to successfully occur, Oxygen gas (O2) must not enter the carboy, because the pyruvate used in the process, gets completely oxidized when oxygen gas is present.

Fermentation is a metabolic process that always must take place in the absence of oxygen. Many of the beneficial microorganisms, create desired changes in different types of beverages and foods through this process of fermentation. And the resulting products of fermentation reaction thus formed, have better/more favorable flavor and taste, and also more life as they get preserved during the process. In addition to this, these microorganisms also provide several health benefits.

The process of fermentation to occur successfully, does not require oxygen gas as it is an anaerobic process. If by any chance or means, oxygen gas is present, the pyruvate used would be completely oxidized during the reaction forming carbon dioxide and water molecules as the by products, by the action of yeast spiration. Moreover, these yeast species needed in the reaction, produce ethanol only in an anaerobic (oxygen-less) environment by another process called the Pasteur Effect.

There are generally three types of fermentation processes based on the end products obtained using the pyruvate. They are:

Acetic Acid Fermentation, Lactic Acid Fermentation, and Alcoholic Fermentation.

Therefore, Oxygen Gas is the correct answer to this question.

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Answer:

2.9x10⁻⁷L is the volume this amount of gas occupy

Explanation:

Assuming there are 7.8x10¹⁵ atoms

Based on the general gas law:

PV = nRT

Where P is pressure = 1atm

V is volume = Our incognite

n are moles of the gas:

7.8x10¹⁵ atoms * (1mol / 6.022x10²³ atoms) = 1.30x10⁻⁸ moles of gas

R is gas constant = 0.082atmL/molK

And T is absolute temperature = 273.15K at STP

Solving for Volume:

V = nRT/P

V = 1.30x10⁻⁸ moles*0.082atmL/molK*273.15K / 1atm

V = 2.9x10⁻⁷L is the volume this amount of gas occupy

The substances that open the lungs' airways are called bronchodilators.

Bronchodilators are a class of medication used to treat respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis.

They function by relaxing and widening the air passages of the lungs, making it easier to breathe.

A variety of bronchodilators are available. Inhalers, nebulizers, tablets, and syrups are examples of them.

Bronchodilators come in a variety of forms, and their effects vary depending on the form.

For example, nebulized bronchodilators, which are inhaled in the form of a mist, work quickly and are used to treat severe respiratory distress.

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Answer:

B. The Gibbs energy will always be positive, and the reaction will

never be feasible.

Explanation:

The relationship between gibbs fee energy, G, enthalpy, H and Entropy, S is given as;

ΔG = ΔH - TΔS

If enthalpy is positive and entropy is negative, it means that we are going t always have  a positive value for the gibbs free energy.

This means the correct option is option B.

The device that is most famously used to find the molecular weight of a compound is a mass spectrometer.

A mass spectrometer is an analytical instrument that is used to measure the mass-to-charge ratio of charged particles. It works by ionizing a sample of the compound, accelerating the ions, and then measuring their masses using a magnetic or an electric field. The resulting mass spectrum can be used to determine the molecular weight of the compound, as well as its elemental composition and isotopic distribution. Mass spectrometry is widely used in chemistry, biochemistry, and other fields to identify and quantify molecules, and it is considered one of the most accurate and precise methods for determining molecular weight.

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Answer:

Anaerobic exercise uses energy that’s readily available in your muscles, because the body isn’t relying on oxygen, these strong, powerful movements can only be sustained for 10 to 15 seconds.

Explanation:

Anaerobic exercise is beneficial for good health because it:

Strengthens bones

Burns fat

Builds muscle

Maintains muscle mass, which is important for people as they age

As we age, we tend to lose muscle at a rate of about 1 percent per year after age 27, unless we actively work to slow that decline, Muscle is a metabolically active tissue and the more of it we can maintain, the more calories we can burn while at rest.
Anaerobic respiration occurs more quickly than aerobic respiration.
A major advantage of aerobic respiration is the amount of energy it releases. Without oxygen, organisms can split glucose into just two molecules of pyruvate. This releases only enough energy to make two ATP molecules.
Methanogenesis, a form of carbon-dioxide respiration, that is used to produce methane gas by anaerobic digestion. Biogenic methane is used as a sustainable alternative to fossil fuels.
Anaerobic respiration is a critical component of the global nitrogen, iron, sulfur, and carbon cycles through the reduction of the oxyanions of nitrogen, sulfur, and carbon to more-reduced compounds.
Specific types of anaerobic respiration are also critical in bioremediation, which uses microorganisms to convert toxic chemicals into less-harmful molecules to clean up contaminated beaches, aquifers, lakes, and oceans. For example, toxic arsenate or selenate can be reduced to less toxic compounds by various anaerobic bacteria via anaerobic respiration.
Hope you will find it helpful. I tried my best. Thank you.

The ocean and the atmosphere are closely interconnected, and changes in one can have significant impacts on the other. There are several ways in which ocean currents, temperature, and gas concentrations are directly related to those of the atmosphere:

Ocean currents influence the atmosphere: Ocean currents play a major role in shaping the Earth's climate by transporting heat and moisture around the globe.

Ocean temperature influences the atmosphere: The temperature of the ocean can affect the amount of heat and moisture that is transferred to the atmosphere. Warmer ocean temperatures can lead to the development of more intense storms and hurricanes, while cooler ocean temperatures can result in drier and more stable weather patterns.

Gas concentrations in the ocean influence the atmosphere: The ocean plays a significant role in absorbing carbon dioxide from the atmosphere, which helps to regulate the concentration of greenhouse gases in the atmosphere.

Atmospheric temperature influences ocean currents: The temperature of the atmosphere can affect the density and circulation of the ocean's currents. For example, the Gulf Stream is a warm ocean current that flows along the east coast of North America, and it is influenced by the warm air masses that move north from the Caribbean Sea.

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Answer:

cannot be used to produce energy in reactors.  

Explanation:

Currently, there is no reactor that can allow the use of nuclear fusion, although nuclear plants use nuclear fission reactors.

Nuclear fusion happens when thousands of atoms collide with each other when they are in the midst of extreme conditions of literature and pressure. This collision causes the atoms to fuse, creating another element. The process releases amounts of light and heat, promoting a high release of energy. This whole process occurs without the release of CO2 into the atmosphere, without the release of toxic waste and without the risk of explosions, which makes nuclear plants have a strong interest in building a reactor to use this type of energy. For this reason, scientists from different countries have collaborated with each other on a project called Iter, which seeks to build a reactor and achieve the first reaction in 2025.

For a fish to completely decompose if there were no decomposers, it takes few days to more than a week.

Decomposers are living organisms like fungi and bacteria. These decomposers are heterotrophic which means they must take the nutrients and it cannot make its own food. Decomposers play an eminent role in an ecosystem because of their process of nutrition.

They break down the dead plants and the animals. These break down the waste of the organisms. They are very eminent for all the ecosystem. If these were not in the ecosystem, the plants cannot get essential nutrients, dead matter and waste would deposit. So the nutrients in them gets recycled back so that they can be used again.

When fish dies, there is nothing which is ingested and the bladder air starts to release, which causes the fish to sink to the bottom. After few days, the internal organs of the dead fish gets decomposed, after which a gas is formed.

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Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass = 59.82 g

volume = 65 mL

We have

\(d = \frac{59.82}{65} \\ = 0.920307...\)

We have the final answer as

Hope this helps you

Answer:

B

Explanation:

trust me im 100% correct

Answer:

lighter atoms especially hydrogen

Explanation:

At the heart of the stars, nuclear fusion merges lighter atoms especially hydrogen together in the nucleus of atoms to create new elements.

During nuclear fusion small atomic nuclei combines to form larger ones with the release of a large amount of energy.

The energy released provides the needed temperature for another set of hydrogen atoms to fuse. This process is in turn yields another set of helium atom which releases a lot of energy.

A chain reaction progresses which leads to the formation of new elements.

Answer:

\(3.5\) pill need to taken for completing dosage of \(875\) mg

Explanation:

Total dosage of medicine to be taken in a day

\(= 2 * 875 \\= 1750\)mg

Total weight of one pill \(= 250\) mg

Number of pills required is equal to total dosage of medicine divided by the weight of one pill.

Hence,

Number of pills

\(= \frac{875}{250} \\= \frac{175}{50} \\= \frac{35}{10} \\= 3.5\)