can someone help me with this plz??

Answer: 40.5 mol

Explanation:

Since this is a double replacement reaction, the unbalanced equation is something like follows:

\(\text{K}_{3}\text{PO}_{4}+\text{NaOH} \longrightarrow \text{KOH}+\text{Na}_{3}\text{PO}_{4}\)

Balancing this equation,

\(\text{K}_{3}\text{PO}_{4}+3\text{NaOH} \longrightarrow 3\text{KOH}+\text{Na}_{3}\text{PO}_{4}\)

From this equation, we can conclude that for every 3 moles of sodium hydroxide consumed, 1 mole of potassium phosphate is consumed.

This means the answer is 13.5(3)=40.5 mol

The term that fills in the blank is "logically incompatible." When two statements are logically incompatible, it means that they cannot both be true at the same time. This is because the truth values of their atomic components, which are the basic building blocks of logic, cannot be assigned in a way that makes both statements true.

To understand this concept, it's important to know that every logical statement is made up of one or more atomic components, which are either true or false. These components are combined using logical connectives like "and," "or," and "not" to form more complex statements.
When two statements are logically incompatible, it means that their truth values cannot be assigned in a way that makes them both true. For example, the statements "It is raining outside" and "It is not raining outside" are logically incompatible because they cannot both be true at the same time.
In summary, logical incompatibility is a concept that relates to the truth values of atomic components and how they combine to form logical statements. When two statements are logically incompatible, it means that they cannot both be true on any assignment of truth values to their atomic components.

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A 14-year-old adolescent girl, Alice, has been diagnosed with anorexia nervosa. In the assessment of Alice, the findings that are more commonly associated with anorexia nervosa are Dysmenorrhea, decreased body temperature, and Heat intolerance.

Dysmenorrhea: Anorexia nervosa can lead to hormonal imbalances and disruptions in the menstrual cycle, which can cause irregular or absent periods (amenorrhea) and sometimes dysmenorrhea (painful periods).

Decreased body temperature: Anorexia nervosa can lead to lower body weight and reduced body fat, which can result in a lower body temperature. This is a physiological response to conserve energy and maintain the body's functions.

Heat intolerance: Anorexia nervosa can affect the body's ability to regulate temperature properly, leading to increased sensitivity to heat or cold. Individuals with anorexia may feel more discomfort or intolerance in extreme temperatures.

Hence,  the findings that are more commonly associated with anorexia nervosa are explained above.

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A compound that consists of two non-metal elements in its structure and compound is called a binary molecular compound. They can have two different elements in their structures bonded by various bonds like carbon dioxide, sodium chloride etc.

The naming of \(\rm H_{2}O\) is dihydrogen oxygen and of \(\rm H_{2}O_{2}\) is dihydrogen dioxygen.

Thus, the naming of water is dihydrogen oxygen and hydrogen peroxide is dihydrogen dioxygen.

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The principle of option D. Uniformitarianism states that the physical, chemical, and biological processes at work shaping the Earth today have also operated in the

Option D. Uniformitarianism is the principle stating that the physical, chemical, and biological processes at work shaping the Earth today have also operated in the geologic past. It is based on the idea that the present is the key to the past. In other words, the same natural laws that operate in the universe today have been operating since the beginning of time.

James Hutton was the first to propose this principle in the late 18th century. He suggested that the Earth was shaped by slow-acting geological forces such as erosion, sedimentation, and uplift over long periods of time. He believed that the same processes were still happening today and that they had operated in the past.

This principle is an important concept in geology because it allows scientists to interpret the Earth's history based on the processes that they observe today. By understanding how these processes work and how they have changed over time, scientists can reconstruct the history of the Earth and its environments.

Uniformitarianism has been tested and proven through many observations and experiments. For example, the study of sedimentary rocks has shown that they were formed in the past through the same processes that are observed today, such as deposition of sediment by water, wind, or ice.

Similarly, the study of volcanoes has shown that they are formed by the same processes as today, such as the movement of magma from deep within the Earth.

In conclusion, Uniformitarianism is the principle that allows us to interpret the Earth's history by observing the processes that shape it today. It is a fundamental concept in geology and has been tested and proven through many observations and experiments.

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At sea level, the air we breathe is 21% oxygen. This means that for every 100 molecules of air we inhale, 21 of them are oxygen molecules.

The remaining 79% is mostly nitrogen, with small amounts of other gases such as argon and carbon dioxide. The percentage of oxygen in the air can vary slightly depending on factors such as altitude and location.

For example, at higher altitudes, the percentage of oxygen decreases because there is less atmospheric pressure.

Additionally, air pollution can also impact the percentage of oxygen in the air. It is important for our bodies to receive this essential gas to function properly, as oxygen is necessary for cellular respiration and energy production.

At sea level, the percentage of oxygen in the air we breathe is approximately 21%. The air is primarily composed of nitrogen (around 78%), oxygen, and trace amounts of other gases such as argon, carbon dioxide, and water vapor.

The composition remains relatively consistent throughout the lower atmosphere, ensuring that we have a sufficient supply of oxygen to sustain life at varying altitudes.

However, air pressure does decrease with elevation, which can affect the availability of oxygen in higher altitudes.

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The approximate amount of the 0.9% sterile sodium chloride solution that the individual should receive is around 1590.91 milliliters.

To calculate the amount of sodium chloride solution to be administered, we need to convert the weight of the person from pounds to kilograms. Since 1 kilogram is equal to 2.2046 pounds, the weight of the person in kilograms is 132 lb / 2.2046 = 59.874 kg.

Next, we calculate the amount of sodium chloride required using the given dosage of 2 mEq per kilogram of body weight. Multiplying the weight in kilograms by the dosage gives us 59.874 kg * 2 mEq/kg = 119.748 mEq.

To convert milliequivalents (mEq) to milligrams (mg), we need to know the molecular weight (M.W.) of sodium chloride, which is given as 58.5 g/mol. 1 mEq of sodium chloride is equal to 58.5 mg.

Finally, we calculate the volume of the 0.9% sterile solution of sodium chloride needed by dividing the amount of sodium chloride required by the concentration of the solution. The concentration of 0.9% means there are 0.9 grams of sodium chloride in 100 milliliters of solution.

Using the formula: volume (mL) = (amount of sodium chloride required (mg) / concentration (%)) * 100, we get volume = (119.748 mg / 0.9%) * 100 = 13,305.33 mL.

Rounding to the nearest milliliter, the person should receive approximately 1590.91 milliliters of the 0.9% sterile solution of sodium chloride.

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The following has the potential to change the equilibrium in a reaction involving gases: decreasing the volume of the system to half of its original value, increasing the volume of the system to twice its original value, doubling the amount of one of the components in the system, and doubling the amount of all of the components in the system.

In chemical reactions involving gases, the concentrations of the reactants and products determine the position of equilibrium. The position of equilibrium, in turn, is affected by any changes made to the concentrations of these reactants and products, such as by changing the volume of the system or altering the amount of one or more of the components in the system.

A change in the volume of a gas system can alter the position of equilibrium in a reaction. For example, decreasing the volume of the system to half of its original value can increase the concentration of the gases and shift the position of equilibrium to the side with fewer moles of gas. Conversely, increasing the volume of the system to twice its original value can decrease the concentration of the gases and shift the position of equilibrium to the side with more moles of gas.

Doubling the amount of one of the components in the system can also change the position of equilibrium in a reaction involving gases. Increasing the amount of one of the reactants will result in the formation of more products, which will shift the position of equilibrium to the side with fewer moles of gas. Similarly, doubling the amount of all of the components in the system will result in the formation of more products, which will shift the position of equilibrium to the side with fewer moles of gas.

In summary, the position of equilibrium in a reaction involving gases can be altered by changes in volume or by changes in the amounts of the components in the system.

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Answer:

Use of Chemical Symbols

One of the main reasons this was developed was because using letters was the easiest way to represent the elements. Another reason that we use chemical symbols is to allow us to write chemical formulas easily.

Most volcanoes occur at plate boundaries because the tectonic plates are moving away from one another and the Earth's crust is pulled apart to create a new pathway for rising hot magma to flow on to the surface while the  two types of boundaries which are most common are:

This is referred to as a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

It occurs at the plate boundaries because Earth's crust is pulled apart to create a new pathway for rising hot magma to flow on to the surface and the types which are most common are divergent plate boundaries which includes two tectonic plates that are moving away from each other and convergent plate boundaries which involves two tectonic plates moving toward each other.

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A task for limiting reagent of reactant inside a chemical reaction is significant since it can aid the scientist in predicting the maximum amount of reactant is used,

The reactant that limits the amount or product that may be generated in a scientific reaction is referred to as the limiting reactant.Since there is more of the surplus reactant than is required to fully react with limiting reactant, part of a excess reactant is still present after reaction is finished.

The same limiting variables may be present in many habitats and may have an impact on the populations of the both species of plants and animals.The carrying capacity of a habitat—the most population it can sustain—is ultimately determined by limiting conditions.

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To raise the temperature of a 10.35g sample of carbon tetrachloride from 32.1°c to 56.4°c, 222.92J heat is required.

Heat is a form of energy and it is associated with the motion of particles. The amount of heat required to change the temperature of a substance depends on its mass, the specific heat capacity of the substance and the change in temperature.

The mass of carbon tetrachloride is given as 10.35g. The specific heat capacity of carbon tetrachloride is given as 0.85651 J/g°C and the change in temperature is given as 24.3°C. Putting these values into the formula: q = m × C × ΔTq = 10.35 g × 0.85651 J/g°C × 24.3°Cq = 222.92 J. Therefore, 222.92 Joules of heat are required to raise the temperature of a 10.35g sample of carbon tetrachloride from 32.1°c to 56.4°c.

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Answer:

Dmitri Mendeleev

Explanation:

Dmitri Mendeleev a Russian Chemist arranged elements on the periodic table according to their atomic mass. He used this arrangement to predict some of the properties of the missing element.

Answer:Mendeleev realized that the physical and chemical properties of elements were related to their mass in a ‘periodic’ way.

Explanation: He arranged them so that the groups of elements with similar properties fell into vertical columns.

Hope this helped love !!

The common ion effect is the decreased solubility of the ionic precipitate in the solution. To promote the precipitation of the calcium sulfate, magnesium sulfate must be added.

It is a phenomenon that is due to the addition of the common ion already present in the solution that affects the equilibrium and is used to decrease the solubility of the solute present in the solution to increase the precipitation rate.

Magnesium sulfate will be added to the solution as it already contains the sulfate ion in the form of calcium sulfate. This will increase the precipitation of the compound as the common ion added will decrease the solubility.

Therefore, magnesium sulfate will be added to promote precipitation.

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Answer:

B

Explanation:

In an ecosystem, strike-slip type of basin  are formed at transform boundaries.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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To estimate the deltaH for the reaction we can do it from the bond energies, that is, starting from the energy needed to form or break a bond.

The reaction energy will be equal to the binding energy of the reactants minus the binding energy of the products. To calculate each bond energy we must first identify which bonds are involved in the reaction. They give us a balanced reaction:

For the reaction, we have the following bonds

Now we are going to calculate the energy taking into account the values that we can find in tables of the bond energy.

Bond Ee (kJ/mol)

H - H 436

O=O 499

O - H 460

Therefore the energy on each side of the reaction will be:

The reaction energy will be:

We have an exothermic reaction since the result is negative. This means that the energy of the products is greater than that of the reactants.

Now we will convert the energy units to kcal:

ΔH (kcal/mol) estimated of the reaction will be -112kcal/mol

Answer:

d

Explanation:

Answer:

Biomass to an Energy source

Explanation:

Researchers have developed a new catalyst that directly converts cellulose, the most common form of biomass, into ethylene glycol, an important intermediate product for chemical industry. Alternatives to fossil fuels and natural gas as carbon sources and fuel are in demand.

Answer:

scientists disoverd a new catalyst

Explanation:

sry i am new just wanted to try it out XD

Answer:

To convert among units in the metric system, identify the unit that you have, the unit that you want to convert to, and then count the number of units between them. If you are going from a larger unit to a smaller unit, you multiply by 10 successively. If you are going from a smaller unit to a larger unit, you divide by 10 successively

Explanation:

hope it helps

When a substance dissolves, it looks like it disappears. But in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution. A solution has two parts. The solute is the solid that gets dissolved.

Answer:

it really depends what they are

Explanation:

Pomace is a waste material from apple juice production which can be used in yogurt industry in order to increase more nutrients.

Pomace is a waste material that can be extracted after apple juice production. It can be added to yogurt to boost nutritional value. Apple pomace is also used to produce pectin, ciderkin, a weak cider, as well as white cider so we can conclude that Pomace can be used in yogurt industry in order to increase more nutrients.

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Answer:

A. Pomace is a waste from Apple production that can be added to yogurt to increase nutritional value.

Explanation:

Just took the test.

The Hazardous Material class that includes compressed gases, dissolved gases, and gases liquefied by compression or refrigeration is Class 2: Gases. This class is further divided into three divisions:

1. Division 2.1 - Flammable Gases: These are gases that can burn in the presence of an ignition source. Examples include propane, butane, and hydrogen.
2. Division 2.2 - Non-Flammable, Non-Toxic Gases: These are gases that do not burn and are not toxic, but may still pose risks due to their physical properties, such as high pressure or low temperature. Examples include nitrogen, helium, and carbon dioxide.
3. Division 2.3 - Toxic Gases: These are gases that are harmful or even fatal when inhaled. Examples include chlorine, ammonia, and phosgene.

The proper handling, storage, and transportation of these gases are essential to minimize the risks associated with their hazardous properties. Regulations and guidelines are in place to ensure the safety of those working with and around these materials.

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Answer:

hearing aid

Explanation:

an artificial body part

A hearing aid is an example of a prosthesis. Therefore, option A is correct.

A prosthesis is an artificial device or replacement for a missing body part or function. In the case of a hearing aid, it is a device designed to assist people with hearing loss by amplifying sound. It acts as a substitute for the natural function of the ear.

A textbook is a written educational resource, gloves are protective coverings for the hands, and a pair of boots is footwear. These items do not serve as artificial replacements for missing body parts or functions.

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Answer:

The right response is "28.13 mL".

Explanation:

The given values are:

Initial buret reading,

= 20.29 mL

Final buret reading,

= 48.42 mL

Now,

The dispensed titrant will be:

= \(Final \ reading - Initial \ reading\)

= \(48.42-20.29\)

= \(28.13 \ mL\)

Answer:

The Resource Conservation and Recovery Act (RCRA; PL 94-580), the major federal law on waste disposal, was passed in 1976. Its primary goal was to "protect human health and the environment from the potential hazards of waste disposal." RCRA is also concerned with reducing the amount of waste generated, ensuring that wastes are managed properly, and conserving natural resources and energy. The RCRA regulates solid waste, hazardous waste, and underground storage tanks

Explanation:

Answer:

It can lose it's electrion

Explanation:

In order to answer the question first we must write the atomic number of each element:

Zirconium (Zr): 40

Cadmium (Cd): 48

Iridium (Ir): 77

Iron (Fe): 26

Then, we have to complete the distribution of electrons in each orbital for each atom:

The first 4 levels have the following distribution:

Level1: 1s

Number of electrones: 2

Level 2: 2s, 2p

Number of electrones 8 (2 in the s orbital and 6 in the p orbitals).

Level3: 3s, 3p, 3d

Number of electrones 18 (2 in the s orbital, 6 in the p orbital and 10 in the d orbitals)

Level 4: 4s, 4p, 4d, 4f

Number of electrones 32 (2 in the s orbital, 6 in the p orbitals, 10 in the d orbitals and 14 in the f orbitals)

The order in which the orbitlas are completed depends on the energy of each level. For example the 4s orbitals will be completed before the 3d orbitals because their energy is lower.

The order is as follows:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p...

Now, knowing the atomic number we can answer the question:

For Zirconium (total 40 electrones):

2 electrones are predicted in the 4d orbital

For Cadmium (total 48 electrones):

10 electrones are predicted in the 4d orbital

For iridium, as it has an atomic number higher than Cadmium we can predict tha it also complets the 4d orbital, then it has also 10 electrones in it.

For iron (total 26 electrones)

Iron has no electrones in the 4d orbitals